DSpace Arşivi :: by Yazar "Duman, Mustafa" değerine göre listeleniyor

Yazar "Duman, Mustafa" seçeneğine göre listele

Listeleniyor 1 - 20 / 20

A study on the Determination of Some Reproductive Traits of Ewes and The Growth Performance of Lambs Akkaraman Raised under Farm Conditions in the Province of Niğde
(2023) Aksoy, Yüksel; Şekeroğl, Ahmet; Duman, Mustafa; Çoban, Önder Bayram
In this study, the reproductive and growth performance of Akkaraman sheep between 2017-2021 were evaluated within the scope of the National Sheep and Goat Breeding Project in the Hand of the Public, which is being carried out in the province of Nigde. In the research, data obtained from 30923 animals in 22 farms in 7 villages in the central district of Nigde province were used. In the study, the effect of year, dam’s age, gender and birth type on birth weight (BW), live weight on day 60 (LW1), live weight on day 120 (LW2), daily live weight gain (DLWG) on day 120 were investigated. The effects of year, dam’s age, gender and birth type on BW, LW1, LW2, DLWG were found to be statistically significant. While the effects of year, dam’s age and gender were found to be statistically effective on SR, the effect of birth type was found to be insignificant. In the study, fertility, fecundity and litter size in Akkaraman lambs were determined as 0.92, 1.03 and 1.13, respectively. As a result, remarkable progress has been achieved in Akkaraman lambs in terms of performance characteristics (LW1, LW2 and DLWG) between 2017 and 2021.
Comparison of Growth Curves by Growth Models in Slow-Growing Chicken Genotypes Raised the Organic System
(FRIENDS SCIENCE PUBL, 2014) Eleroglu, Hasan; Yildirim, Arda; Sekeroglu, Ahmet; Coksoyler, Fikret Nafi; Duman, Mustafa
Two hundred and forty slow-growing chickens consisting of equal numbers of Hubbard S757 (S757) and Hubbard Grey Barred JA (GB-JA) strains were utilized for the investigation in organics system and were used to estimate growth curve in Gompertz and Logistic model. The asymptotic weights for GB-JA and S757 genotype female; male in the Gompertz model were estimated 3725.34 g; 6109.60 g and 4876.10 g; 6496.47 g and same parameter were found in Logistic model 2133.33 g; 2906.35 g and 2790.37 g; 3635.00 g respectively. The Gompertz model was higher estimate than Logistic model for the asymptotic weights parameter. The instantaneous growth rate for GB-JA and S757 genotype female; male in the Gompertz model were estimated 0.1424; 0.1288 and 0.1525; 0.1495 and same parameter values were found in Logistic model 0.3753; 0.3734 and 0.3873; 0.3949 respectively. Significant difference was observed for the instantaneous growth rate parameter between GB-JA and S757 genotypes in each of models. According to the results of goodness of fit in Gompertz and Logistic growth curve models, the coefficient of determination (R-2) and adjusted coefficient of determination (adj. R-2) were detected above 0.996 in boot models for two genotype broilers. The highest value of R-2 and adj. R-2 were obtained from the Logistic model in GB-JA. The two models were all fitted the growth curves of slow-growing chicken genotypes in organic system very well, and the fitting degrees R-2 were all above 0.998; for the two models; however Logistic model was the best (0.999%). c 2014 Friends Science Publishers
Comparison of Growth Curves of Broiler under Different Stocking Densities by Gompertz Model
(KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2013) Sekeroglu, Ahmet; Tahtali, Yalcin; Sarica, Musa; Gulay, M. Sukru; Abaci, Samet Hasan; Duman, Mustafa
The knowledge of the growth curve in poultry science is very useful for describing growth kinetics and setting commercial management procedures. The objective of this research was to fit the Gompertz growth curve from hatching weights to 42 d-old weights of broilers in 3 stocking density groups. A total of 284 Ross 308 broilers randomly divided into 3 stocking density groups (9, 13 and 17 birds/m(2)) in this experiment. All birds were weighted weekly. The asymptotic weight (A) of broiler chickens for 9, 13 and 17 bird/m(2) stocking density groups were 4198.46, 3807.45 and 3999.92 g, respectively (P<0.05). The growth rates (K) of broiler chickens for 9, 13 and 17 bird/m(2) stocking density groups were 0.055, 0.058 and 0.052, respectively (P<0.01). The coefficient of determination for all stocking density groups were 0.998, 0.997 and 0.996, respectively (P<0.05). Moreover, the mean square error (MSE) value was lowest for 9 bird/m(2) group (P<0.05). The current study suggested that stocking density of 9 bird/m(2) was better for the broiler growth of the different stocking densities on the base of mature live weight (A), coefficient of determination (R-2) and mean square error (MSE).
Comparison of meat quality and fatty acid profile in slow-growing chicken genotypes fed diets supplemented with Origanum vulgare or Melissa officinalis leaves under the organic system
(TAYLOR & FRANCIS LTD, 2013) Eleroglu, Hasan; Yildirim, Arda; Isikli, Nursel D.; Sekeroglu, Ahmet; Duman, Mustafa
This study was conducted to compare the meat quality and selected fatty acids profile of two different slow-growing broiler genotypes (Hubbard S757; S757 and Hubbard Grey Barred JA; GB-JA) fed diets supplemented with dry oregano (Origanum vulgare L., OV; 10 g/kg basal diets) or lemon balm leaves (Melissa officinalis L., MO; 10 g/kg basal diets) under organic housing system. It is concluded that slow-growing genotypes had no effect on L* parameter of the breast, thigh and abdominal fat meat quality. Two hundred and forty chicks were allocated randomly into 4 experimental groups according to a 2x2 factorial arrangement. Birds were raised until 98 days in order to achieve an acceptable market live weight. The b* colours of breast and thigh meat were significant different among genotypes and also a* colour of breast meat of GB-JA increased (P<0.05). Slow-growing female broilers produced a higher dry matter content and lower fat content of breast meat as compared with males. There were the higher concentrations of linoleic (C18:2n-6) acid and the lower concentrations of linolenic acid (C18:3n-3) in genotypes fed with supplemented dry oregano or lemon balm leaves diet. Sex affected total unsaturated fatty acids (UFA) composition, polyunsaturated fatty acid (PUFA) and linoleic acid, were higher in slow growing males breast meat as compared with females breast meat. These results suggested that the slow-growing genotypes might had influenced the colour of breast and thigh meat, although overall meat quality was not affected under the organic system.
Comparison of the Growth Performance and Carcass Characteristics of Two Slow-Growing Broiler Genotypes Fed Diets Supplemented with Dry Oregano (Origanum vulgare L.) or Lemon Balm (Melissa officinalis L.) Leaves under the Organic System
(KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2014) Eleroglu, Hasan; Yildirim, Arda; Sekeroglu, Ahmet; Duman, Mustafa
This study was conducted to determine the growth performance and carcass characteristics of two slow-growing broiler genotypes (Hubbard S757 and Hubbard Grey Barred JA) fed diets supplemented with dry oregano (Origanum vulgare L. or lemon balm leaves (Melissa officinalis L.) as growth promoter source under an organic housing system. In this study 240 chicks (mixed-sex) were allocated randomly into 4 experimental groups according to a 2 x 2 factorial arrangement for 2 broiler genotypes and 2 diets. The effects of dry herb leaves and genotype x herb leaves interaction on studied parameters were not significant at all weeks of age (P>0.05), except neck (%). Body weight, body weight gain, feed efficiency, carcass weight and yield, leg weight and yield, breast weight and yield, back weight and yield, edible giblets weight and yield of Hubbard S757 genotype were higher (P<0.05) than those of Hubbard Grey Barred JA genotype. The female breast (P<0.01) and edible giblets yield (P<0.05) were superior to those of males. These results show that herb leaves used as a growth promoter source under organic housing system did not affect the studied parameters and that in terms of these parameters, and subsequent Hubbard S757 genotype were superior to Hubbard Grey Barred JA genotype.
Effect of age, stocking density, genotype, and cage tier on feather score of layer pure lines
(Tubitak Scientific & Technological Research Council Turkey, 2022) Tok, Selami; Sekeroglu, Ahmet; Duman, Mustafa; Tainika, Brian
The objective of the study was to investigate the effect of genotype, age, stocking density, and cage tier on the feather score of egg-laying pure lines. The trial was carried out with five white (BLACK, BLUE, MARON, BROWN, and D229) and six brown (RIR1, RIR2, BAR1, BAR2, COL, and LINE54) eggshell lines as classified by the Ankara poultry research institute. In the experiment, 162 chicks were randomly selected from each of the 11 lines; thus, a total of 1782 chicks (810 and 972 white and brown layer pure lines, respectively). At 17 weeks of age, pullets were chosen at random and placed in 3-tiered battery-type cages. Each tier housed 99 chickens (11 lines, 3 different stocking densities, 3 replications). The stocking density was 5 birds, 6 birds, and 7 birds per cage cell that corresponded to 720 cm(2), 600 cm(2), and 514.28 cm(2) of floor space per bird, respectively. Feeding was ad libitum during the growth and egg production periods. Feather scores of the head, neck, breast, back, wings, and tail regions of the chickens were taken at the 30th, 40th, 50th, and 60th week of age. The results indicated that age, stocking density, cage tiers, and genotypes have a significant effect on the feather score of the head, neck, breast, back, wings, and tail; feather score significantly decreased at an increasing age and stocking density (p < 0.01). It was observed that the feather score of the chickens on the top tier was significantly increased (p < 0.01). It was found that RIR2, BLACK, and COL pure lines had the best feather score. These findings suggest that chickens placed in top cage tiers with low stocking density (5 chickens/cage cell) and RIR2, BLACK and COL pure line genotypes improve feather score.
Effect of Different Housing Systems on Production and Blood Profile of Slow-Growing Broilers
(KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2015) Diktas, Merve; Sekeroglu, Ahmet; Duman, Mustafa; Yildirim, Arda
Present study was conducted to investigate the effects of deep litter system, free-range with fixed housing system and free-range with portable housing system in wheat stubble on performance, internal organ weights, blood parameters and tonic immobility of slow-growing broilers. A total of 270 Hubbard Isa Red-JA chicks were used in experiments. The experiment lasted for 61 days. Results showed that the body weight on 21(st), 28(th), 35(th) and 42(th) days of birds from free-range with portable housing system was significantly lower than of those kept in deep litter and free range with fixed housing system. The viability of broilers in free-range with portable housing system was lower than broilers in free-range with fixed housing and deep litter system in the days of 14-42 and 14-61, while there were not any differences between housing systems in days of 43-61. Housing systems had no significant effect on feed conversion ratio and internal organ weight. There were no significant differences in tonic immobility durations of housing systems and some blood parameters, except hematocrit values. In conclusion, the body weight in free-range with portable housing system was significantly lower until 42nd day of the experiment, but this difference was disappeared during the rest of rearing period. It could be concluded that rural producer can be involved in broiler production after wheat harvesting.
Effect of different pasture species on welfare and behavior of slow-growing broiler chickens in free-range production system
(Springer, 2023) Bashir, Nadia; Sekeroglu, Ahmet; Tainika, Brian; Gur, Fatih Mehmet; Duman, Mustafa; Senturk, Yunus Emre
This study investigated the effect of various pasture species on the welfare and behavior of slow-growing broiler chickens in the free-range production system. After 21 days completely indoors, the birds were permitted access to outdoor pens cultivated with one of the following pasture treatments: Medicago sativa (A), Trifolium repens (WC), Lolium perenne (PR), and a mixture (Mix, A + WC + PR). The range availability was restricted between 08:30 and 16:30 daily. It was found that pasture type had a significant effect on the fluctuating asymmetry of the face and radius length (P < 0.01). Duration of tonic immobility and blood parameters did not differ among the pasture species and between sexes at 11 weeks of broiler age (P > 0.05). Pasture treatment had no significant effect on broiler behaviors (P > 0.05). However, the age of broilers had a significant effect on pecking, dustbathing, and scratching (P < 0.01). Pecking behavior was affected by the time of the day; morning and afternoon (P < 0.01). Location had a significant effect on pecking and stretching behaviors (P < 0.01). In the study, dustbathing behavior was significantly affected by the interaction between location and age (P < 0.01), age and time of the day (P < 0.01), and location, age, and time of the day (P < 0.05). Scratching behavior was significantly affected by the interaction between location and time of the day (P < 0.05) and location, age and time of the day (P < 0.01). Stretching behavior was significantly affected by the interaction between location and age (P < 0.05) and location, age and time of the day (P < 0.05). It was concluded that access to the studied pasture species does not affect the evaluated welfare traits and observed behaviors. Therefore, it is suggested that other pasture species should be investigated to identify their effect on slow-growing strains in the free-range production system.
EFFECT OF DISTANCE FROM THE ROADWAY ON HEAVY METAL CONTENT AND EGG QUALITY OF VILLAGE LAYING HEN'S EGG ALONG ROADSIDES OF TOKAT-TURHAL, TURKEY
(UNIV AGRICULTURE, 2013) Sekeroglu, Ahmet; Sari, Hayati; Sarica, Musa; Yildirim, Arda; Duman, Mustafa
In this study, the heavy metal contents and egg quality characteristics of chicken eggs was studied. The eggs have been collected at distances of 0-100 (Distance A), 100-200 (Distance B) and 200-300 m (Distance C) away from the edge of Tokat-Turhal road. The distance from roadway had no significant effect on egg Cu and Mn contents (P>0.05), although a significant effect on egg Cd and Pb content (P<0.05) was observed. There were no significant difference in egg shape index, egg shell thickness, breakage strength, egg albumin pH, albumin index, Haugh units and yolk index according to distance from the roadway (P> 0.05). Eggs obtained from distance A and B had significantly higher weight than obtained from distance C (P<0.05). Egg obtained from distance B had significantly lower egg shell colour scales than those of the other distances (P<0.01). And, egg yolk colour was showed a significant variation among the distances away from the roadway, and the highest yolk colour value was detected in distance B (P<0.05). Depending on obtained results, it can be concluded that the egg heavy metal concentrations exceeded background levels for hen eggs. Therefore, consumers should be aware of the possible health risks related by the use of these eggs which has obtained from side of road.
Effect of distance from the roadway on heavy metal content and egg quality of village laying hen's egg along roadsides of Tokat-Turhal, Turkey
(2013) Şekero?lu, Ahmet; Sari, Hayati; Sarica, Musa; Yildirim, Arda; Duman, Mustafa
In this study, the heavy metal contents and egg quality characteristics of chicken eggs was studied. The eggs have been collected at distances of 0-100 (Distance A), 100-200 (Distance B) and 200-300 m (Distance C) away from the edge of Tokat-Turhal road. The distance from roadway had no significant effect on egg Cu and Mn contents (P>0.05), although a significant effect on egg Cd and Pb content (P<0.05) was observed. There were no significant difference in egg shape index, egg shell thickness, breakage strength, egg albumin pH, albumin index, Haugh units and yolk index according to distance from the roadway (P> 0.05). Eggs obtained from distance A and B had significantly higher weight than obtained from distance C (P<0.05). Egg obtained from distance B had significantly lower egg shell colour scales than those of the other distances (P<0.01). And, egg yolk colour was showed a significant variation among the distances away from the roadway, and the highest yolk colour value was detected in distance B (P<0.05). Depending on obtained results, it can be concluded that the egg heavy metal concentrations exceeded background levels for hen eggs. Therefore, consumers should be aware of the possible health risks related by the use of these eggs which has obtained from side of road.
Effect of Production System and Age on Egg Quality Parameters: A Case of Niğde Province Çamardı District, Turkey
(2021) Yurtseven, Emine Polat; Şekeroğlu, Ahmet; Tainika, Brian; Duman, Mustafa; Şentürk, Yunus Emre
This study compared egg quality parameters in layers under free-range system with prefabricatedpens and backyard while emphasizing hen age. A total of 300 eggs collected from prefabricatedpens and backyard farming families in the Çamardı District of Niğde Province were used as studymaterials. The assessed external and internal egg quality characteristics included egg weight, shapeindex, shell thickness, shell breaking strength, albumen index, Haugh unit, yolk index, and yolkcolour. The effect of production system on albumen index, Haugh unit, and yolk colour score wasfound statistically significant. There was a significant effect of age on shape index, shell thickness,shell breaking strength, albumen index, Haugh Unit, yolk index, and yolk colour score. The effectof interaction between age and production system was statistically significant for shape index, shellthickness, yolk index, Haugh Unit, and yolk colour score. It was determined that the egg`s meat andblood spots percentages from the free-range and backyard systems were 10.6% and 15.3%,respectively. It was concluded that while eggs produced from free-range system are superior interms of egg weight, shape index, and Haugh unit those obtained from backyard hens are higher ineggshell thickness, eggshell breaking strength, and egg yolk colour.
Effects of egg shell color and storage duration on the external and internal egg quality traits of ATAK-S layer hybrids
(PONTIFICIA UNIV CATOLICA CHILE, FAC AGRONOMIA INGENIERIA FORESTAL, 2016) Sekeroglu, Ahmet; Gok, Hamdiye; Duman, Mustafa
The present study was conducted to investigate the effects of storage duration and egg shell color on external and internal egg quality traits. Eggs were obtained from 29-week--old ATAK-S layer hybrids reared in a traditional cage system. Storage durations were set as 0, 7, 14, 21 and 28 days. Shell color was classified as dark (59.00-67.99); moderate (68.00-70.99) and light (71.00-79.99) using the Delta E values of the eggs. The storage duration significantly affected the egg weight (P <= 0.01), specific gravity (P <= 0.01), breaking strength (P <= 0.01), shell thickness (P <= 0.01), shell weight (P <= 0.01), surface area (P <= 0.01), albumen index (P <= 0.01), yolk index (P <= 0.01), Haugh unit (P <= 0.01), yolk color (P <= 0.05) and albumen pH (P <= 0.01). The egg shell color significantly affected the specific gravity (P <= 0.01), breaking strength (P <= 0.01), shell thickness (P <= 0.01), shell weight (P <= 0.01), albumen pH (P <= 0.05) and albumen blood-meat spots (P <= 0.05). The current findings revealed that the eggs should be transported to consumers as soon as possible, and further studies should be performed to darken egg shell colors. It was concluded that newly laid dark colored eggs had the best quality.
Egg production and quality characteristics of laying hens fed diets supplemented with dry caper (Capparis spinosa) leaf powder
(Agricultural Research Communication Centre, 2018) Yildirim, Arda; Sekeroglu, Ahmet; Koc, Huseyin; Eleroglu, Hasan; Duman, Mustafa; Tahtali, Yalcin; Elmastas, Mahfuz
An in vivo experiment was conducted to determine the effect of dietary inclusion of dry Caper (Capparis spinosa) leaf powder (DCL) on egg production and egg quality of laying hens at the beginning of the laying period. Four groups of commercial hens (ATAK-S) were fed with diets containing 0, 5, 10 and 15 g DCL/kg. The results demonstrated that dietary DCL had no effect on feed intake, feed efficiency, egg mass (EM) and egg production parameters (P>0.05). Hen-day egg production (HDP) value of the groups was 69.52%, 64.97%, 68.02% and 71.72% respectively. Trolox equivalent antioxidant capacity (TEAC), ferric reducing antioxidant power (FRAP) and total phenolics amount of DCL were 51.06 +/- 2.300 mmol trolox/kg, 50.10 +/- 3.488 mmol TEAC/kg and 2.78 +/- 0.050 g gallic acid equivalents (GAE)/kg respectively. Based on the results from the current study, the dietary DCL with levels up to 15 g/kg neither reduced productivity performance traits nor improved egg quality characteristics.C
Evaluation of Some Reproductive Performance of Ewes, Livability and Growth Traits of Lambs of Akkaraman in Breeder Flocks in Niğde/Bor Province
(2023) Aksoy, Yüksel; Şekeroğlu, Ahmet; Duman, Mustafa
Conducted within the National Sheep and Goat Breeding “subproject: Akkaraman Sheep Breeding Project under farmer conditions in Nigde’s Bor district” between 2018 and 2022, the current study evaluated the reproductive characteristics of ewes as well as the livability and growth traits of lambs. This study investigated some ‘reproductive traits’ of an average of 6000 ewes per year and ‘growth performance and ‘survival traits’ of a total of 30051 head lambs. The birth weight (LBW), 60th-day body weight (BW60), 120th-day body weight (BW120), and 120th-day body weight gain (BWG120) of Akkaraman lambs during the study periods were 4.14±0.19 kg, 18.58±0.03 kg, 31.31±0.02 kg, and 246±2.23 g/lamb/day, respectively. In the study, among the factors affecting the growth characteristics of Akkaraman lambs, only the effect of gender on BWG120 and birth type on BW120 was found to be insignificant. In contrast, the other factors were found to be found to be statistically significant. In the study, it was determined that the number of lambs per Akkaraman ewe giving birth between 2018-2022 varied between 1.03-1.10. The highest livability in Akkaraman lambs was determined in 2018 (96.61%) and the lowest in 2020 (83.21%). As a result, it was found that liveability in Akkaraman lambs was dependent on birth year, the age of the ewe, gender, and birth type.
Kafes Pozisyonu ile Yumurtlama Zamanı Arasındaki İlişkinin Uyum Analizi ile Belirlenmesi
(2020) Abacı, Samet Hasan; Bayyurt, Lütfi; Tahtalı, Yalçın; Şekeroğl, Ahmet; Duman, Mustafa
Bu araştırma Tokat Gaziosmanpaşa Üniversitesi araştırma çiftliğinde 3 katlı bir kafes sistemindegerçekleştirilmiştir. Her kafes bölmesinde 6 tavuk yerleştirilmiş ve her katta 5 tekerrür oluşturulmuştur.24-42. haftalar arasında toplam 90 Atak-S tavuğundan 9:00 - 13:00 ve 16:00 saatlerinde mevcutyumurtalar toplanmıştır. Deneme süresince 90 tavuktan toplam 1442 yumurta elde edilmiştir. Kafespozisyonu ile yumurtlama zamanı arasındaki ilişkinin belirlenmesi için uyum analizi uygulanmıştır.Verilerin analizinde SPSS paket programı kullanılmıştır. Sonuçlara göre farklı katlardaki tavuklarınfarklı saatlerde yumurtlamaları istatistiksel olarak önemli bulunmuştur. Uyum analizi sonuçlarına göredeğişkenliğin tek boyuttaki açıklama gücü %99,7 olup ikinci boyuttaki açıklama gücünün %0,3 olduğubelirlenmiştir. Birinci boyuttaki kafes katları bakımından değişkenlik incelendiğinde birinci katınaçıklama gücünün %65,4 olduğu ikinci boyutta ise ikinci (%56,9) ve üçüncü katın (%41,8) açıklamagücünün daha yüksek olduğu belirlenmiştir. Birinci boyuttaki yumurta toplama saatleri bakımındandeğişkenlik incelendiğinde saat 13:00’da toplama için açıklama gücünün %52,8 olduğu ikinci boyuttaise saat 16:00’daki toplama için açıklama gücünün %79,6 olduğu belirlenmiştir. Sonuç olarak birincikattaki tavukların genellikle saat 9:00 sıralarında, 2. ve 3. kattaki tavukların ise 13:00 ile 16:00 saatleriarasında yumurtladığı belirlenmiştir. Yumurtaların ortam sıcaklığına göre değişiklik göstermeklebirlikte üreticiler tarafından genellikle sabah saatlerinde toplandığı bilinmektedir. Bu nedenle yumurtatoplama sıklığının hem ekonomik olarak hem de tüketici sağlığı açısından yeniden düzenlenmesi önemarz etmektedir.
Meat physico-chemical composition of guinea fowl fed organic diets supplemented with dry oregano leaf
(Sivar-Soc Italiana Veterinari Animali Reddito, 2020) Yildirim, Arda; Eleroglu, Hasan; Duman, Mustafa
The present study was conducted to determine the meat quality and some fatty acids of standard guinea fowl genotype fed organic diets supplemented with dry oregano (Origanum vulgare L.) leaf. A total of 240-one day-old guinea fowl keets (mixed-sex) were randomly divided into four dietary groups with three replicate pens (20 keets per pen). The birds were fed on the basal diet with supplementation of the control (without supplement, 0 g/kg), 5 g/kg (low), 10 g/kg (medium) and 15 g/kg (high) dry oregano leaf (Origanum vulgare L., OV) during 16 weeks. There were no significant differences for the values of L-star, a(star), b(star), H-star (Hue angle), C-star (Chroma), Delta E-star((L-star 2+a(star 2)+b(star 2))(1/2)) in right breast with skin (Pectoralis major and Pectoralis minor) and without skin between each group. No statistical differences were found between the mean values on physical characteristics (pH, water holding capacity), chemical composition (moisture, protein, fat and ash), saturated and unsaturated fatty acids of right breast meat of guinea fowl with the supplementation of the different levels of dietary oregano leaf. These findings showed that oregano supplementation had no practical adverse impact on the meat quality of guinea fowl reared in the organic system.
Niğde İlinde Yetiştirilen Akkaraman Irkı Koyunların Bazı Döl Verim Özellikleri ve Kuzuların Büyüme Performansı
(2019) Ceyhan, Ayhan; Şekeroğl, Ahmet; Duman, Mustafa
Bu çalışmada, yarı ekstansif koşullarda yetiştirilen Akkaraman koyunlarının bazı döl verimözellikleri ile kuzuların büyüme performansları araştırılmıştır. Araştırmanın hayvan materyalini,Niğde merkez ilçesine bağlı 34 işletmede bulunan 300 baş koç, 6000 baş Akkaraman koyunu ileonların kuzuları oluşturmuştur. Araştırma 2012-2016 yılları arasında 5 yıl sürdürülmüş ve çalışmasüresince 30162 baş kuzu doğum ağırlığı, 29517 baş kuzunun 90. gün canlı ağırlığı ve 30000 başAkkaraman koyununun bazı döl verim parametreleri saptanmıştır. Akkaraman koyunlarında doğumoranı ortalama %90,1, ikiz doğum oranı %20,8, bir doğuma düşen kuzu sayısı 1,12 olaraksaptanmıştır. Akkaraman ırkı kuzuların doğum ağırlığının ortalaması 4,23 kg ve 90. gün canlı ağırlıkortalaması da 23,05 kg olarak belirlenmiştir. Kuzuların doğum ağırlıkları ve 90. gün canlı ağırlıklarıüzerine yıl, doğum tipi ve cinsiyetin etkisi önemli bulunmuştur. Sonuç olarak, halk elinde yarıekstansif koşullarda yetiştirilen Akkaraman ırkı koyunların döl verimi ve kuzuların büyümeözelliklerinin iyileştirilebileceği ve bunun gibi ıslah projelerinin uygulanması ile koyunculukişletmelerin ekonomik durumlarının iyileştirilebileceği kanaatine varılmıştır.
The effect of dry caper (capparis spinosa) fruit on egg production and quality characteristics of laying hens
(University of Agriculture, 2014) Yildirim, Arda; Sekeroglu, Ahmet; Koc, Huseyin; Eleroglu, Hasan; Tahtali, Yalcin; Sen, Merve Isil; Duman, Mustafa
This study was conducted to determine the effect of increasing dietary inclusion of dry Caper (Capparis spinosa) fruit (DCF) on egg production and quality characteristics of laying hens between 20 and 32 weeks of age. Four groups of commercial hens (ATAK-S) were fed with diets containing 0, 5, 10 and 15 g DCF/kg. The results showed that final body weight, feed intake, shape index (SI) and morning hen-day egg yield were influenced by dietary supplementation of DCF (P<0.05). Hen-day egg production (HDP) value of commercial hens groups was 73.47%, 56.67%, 54.18% and 51.72% respectively. The effect of increased the levels of DCF on egg weight, specific gravity, shell breaking strength, shell thickness, surface area, albumen pH, albumen index (AI), yolk index (YI), shell weight and haugh unit (HU) was not statistically significant (P>0.05) during the entire experiment. The lightness (L*) and redness (a*) values for egg shell color were similar (P>0.05) in the DCL supplemented groups as compared to the control group. The yellowness (b*), Hue angle (H), chroma (C*) and ?E* values were lower (P<0.05) in 15 g DFC/kg group when compared with the control. Trolox equivalent antioxidant capacity (TEAC), ferric reducing antioxidant power (FRAP) and total phenolics amount of DCF were 43.75±0.680 mmol trolox/kg, 60.03±3.710 mmol TEAC/kg and 3.16±0.060 g gallic acid equivalents (GAE)/kg, respectively. Based on the results from the current study, the dietary supplementation with dry DCF had adverse effects on productivity performance traits and egg quality.
The potential of pumice as a litter material and its influence on growth performance, carcass parameters, litter quality traits, behavior, and welfare in broiler chickens
(Springer, 2024) Duman, Mustafa; Sekeroglu, Ahmet; Tainika, Brian
This study evaluated the possibilities of pumice (light stones) as litter material in broiler production. Experimental treatments included wood shavings (WS), acidic pumice (AP), and basic pumice (BP) alone, and in combination; wood shaving + acidic pumice (WSAP) and wood shaving + basic pumice (WSBP) in a ratio of 1:1. Two trials were performed, one in summer, and the other in winter. Each trial involved 750 mixed-sex Ross (308) broilers. Also, there were 15 replicate pens with 50 broilers and a stocking density of 12.5 birds/m(2) for each pen at the beginning of each trial. Performance, litter quality, carcass parameters, body and leg abnormalities, body temperature, fear and stress responses, proportional asymmetry, and some behavior expressions were investigated. The litter treatment influenced the final live body weight, litter moisture, ammonia concentration, footpad dermatitis, hock burn, breast blister, hot carcass yield, heart, liver, spleen, abdominal fat, wing and neck ratio, breast and back cleanliness, and the expression of dust bathing and foraging behaviors (P < 0.01; P < 0.05). Furthermore, there was a seasonal effect on live body weight, feed conversion ratio, livability, litter pH, 42-day litter moisture, hot carcass yield, back cleanliness, footpad dermatitis, hock burn, footpad temperature, heterophil-to-lymphocyte ratio, and expression of pecking behavior (P < 0.01; P < 0.05). It is suggested that acidic pumice stone alone or in a mixture with wood shavings could be used as a reliable litter material, alternative to wood shavings.
The welfare of slow growing broiler genotypes reared in organic system
(UNITED ARAB EMIRATES UNIV, 2015) Eleroglu, Hasan; Yildirim, Arda; Duman, Mustafa; Sekeroglu, Ahmet
This study study was conducted to compare welfare indicators and some serum biochemical parameters of two different slow-growing genotypes (Hubbard S757; S757 and Hubbard Grey Barred JA; GB-JA) under organic housing system. A total of 240 day-old chicks were allocated randomly into 2 experimental group with 6 replicates and 20 chicks was reared in each replicate. The tonic immobility was a significant difference between genotypes and sex at 10 and 14 weeks, respectively (P < 0.05). Overall duration of tonic immobility was similar (P > 0.05) in genotypes and sex. The effect of sex was significant for width of tarsometatarsus at the joint with tibiotarsus; males had greater fluctuating and relativite asymmetry than females (P < 0.05). There were positively correlations between fluctuating and relative asimetry values of the third phalanx of the mid toe length and the fourth phalanx of the outer toe length from specific feet trait measurements. Serum cholesterol and uric acid had significant differences between genotypes (P < 0.01). Cholesterol levels was significantly (P < 0.01) higher in male than in female slow-growing broiler. It is concluded that slow-growing genotypes and sex had no effect on measures of welfare, such as the fluctuating asymmetry, relativite asymmetry, tonic immobility and rectal temperatures.

Yazar "Duman, Mustafa" seçeneğine göre listele

Sayfa Başına Sonuç

Sıralama seçenekleri