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    Effect of parity and type of lambing on performance and udder traits of Bandirma ewes
    (INDIAN COUNC AGRICULTURAL RES, 2016) Sezenler, Tamer; Ceyhan, Ayhan; Yuksel, Mehmet Akif; Onaldi, Abdullah Taner; Yildirir, Mesut
    The objective of this study was to evaluate the effect of parity and lambing type on body condition score (BCS), live weight of ewes (LWE), daily milk yield (DMY), lambs growth performance and udder measurement of ewes during first 3 months of lactation in Bandirma ewes. Bandirma ewes (78) with healthy udders and their lambs (117 heads) were used. BCS of ewes was affected significantly by lambing types at first and third months of lactation, while lambing types were not significant in second month of lactation. Parity of ewes did not significantly affected BCS except third month of lactation which was significantly affected by parity. Effects of lambing types and parity of ewes were significant on BCS at first and third month of lactation. Live weight change of ewes was affected significantly by parity, while lambing types were not significant at first 3 months of lactation. There was a significant effect of parity on average daily milk yield at early lactation stage. Also lambing type had significant effect on DMY at first 2 months of lactation. DMY at third month of lactation were not affected by lambing types. Parity affected lambs growth performance in the first three months of lactation. No significant differences between lambing type and parity of ewes in udder measurement, except udder circumference (UC) measure which was significantly affected by parity and lambing types. The effects of parity of ewes were significant on udder circumference and udder width while the other udder traits were not significant. The effects of birth type of ewes were significant on udder width while the other udder traits were not significant. The positive and significant correlations were observed between udder circumference and udder width and daily milk yield in Bandirma sheep. Significant positive phenotypic correlations were determined between lambs live weight (LLW) and LWE, BCS and DMY, LLW and LWE, DMY and LWE. The results suggested that early stage of lactation of ewe's can be feed supplemented with high energy or high protein for increasing milk production. The control of these physiological stages of ewe may be improved BSC and DMY, also growth performance of lambs. Hence, we recommend that early stage of lactation performance and udder measurements of ewes are to be taken into consideration for selection programme of Bandirma sheep.
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    Improvement studies on mutton sheep for Marmara region conditions: I. fertility, lamb survival, and growth traits of lambs
    (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2011) Ceyhan, Ayhan; Sezenler, Tamer; Erdogan, Ismail; Torun, Osman
    The present study was conducted to compare the fertility of ewes, the survival rates, and the growth performance of lambs that were crossbred by mating German Black-Headed Mutton (GBM) rams with Kivircik ewes. The average lambing rates of the GBM x K(F(1)), Bandirma-I and Bandirma-II genotype, and Kivircik ewes were 80.00%, 75.73%, 76.78%, and 83.72%, respectively. The differences in lambing rates between the genotypes were significant (P < 0.01). The genotypes had a significant effect on litter size at birth, but not on fecundity. The differences in lambs' survival rates between the genotypes were significant (P < 0.05). The birth weight (BW), weaning weight (WW), and yearling live weight (YLW) of the lambs were 3.77 kg, 34.11 kg, and 43.71 kg for the GBM x K (F(1)); 3.74 kg, 32.98 kg, and 44.91 kg for the Bandirma-I; 3.73 kg, 33.18 kg, and 45.71 kg for the Bandirma-II; and 3.45 kg, 30.92 kg, and 42.22 kg for the Kivircik lambs. The results of this study showed that crossbreeding between the GBM and Kivircik breed did not significantly increase lamb production. However, crossbred lambs did not have signifi cant survival problems when compared to native Kivircik lambs and had higher growth performance than purebred Kivircik lambs.
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    Influence of Year, Parity and Birth Type on Milk Yield and Milk Components of Bandirma Sheep (German Black Head Mutton x Kivircik)
    (ANKARA UNIV, FAC AGR, 2016) Sezenler, Tamer; Ceyhan, Ayhan; Yuksel, Mehmet Akif; Koncagul, Seyrani; Soysal, Deniz; Yildirir, Mesut
    This study was conducted to investigate the effects of year, parity and birth type (BT) on lactation milk yield (LMY), adjusted lactation milk yield based on 150 days lactation length (LMY150), lactation length (LL), average daily milk yield (ADMY) and milk components (MC) of Bandirma sheep. The study was carried out with 54 ewes in 2011 and 70 ewes in 2012 under semi-intensive conditions. LMY, LMY150, LL and ADMY of Bandirma sheep were determined as 70.31 kg, 73.29 kg, 142.02 days and 488.19 g, respectively. The effect of the year on LL was significant (P<0.01), but the effects of parity and BT were not significant. The effects of the year and parity were significant (P<0.01 and P<0.05, respectively) on LMY, LMY150 and ADMY, but the effect of BT was not significant. Fat, protein, lactose, total dry matter (DM) and non-fat dry matter (NFDM) were determined as 5.26%, 6.11%, 3.29%, 15.49% and 10.23%, respectively. Highly significant positive correlations were determined between fat content and DM (r=0.998; P<0.01) and between fat content and NFDM (r=0.949; P<0.01), whereas fat content was negatively correlated with ADMY (r=-0.992; P<0.01) and lactose content (r=-0.957; P<0.01). Significant negative correlations (P<0.01) were found between lactose content and other milk components except for protein content and ADMY. The results indicated that despite being a mutton type crossbred, lactation characteristics and MC of Bandirma sheep are also considerable.
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    Influence of year, parity and birth type on milk yield and milk components of Bandırma sheep (German black head mutton x kıvırcık)
    (Ankara University, 2016) Sezenler, Tamer; Ceyhan, Ayhan; Yüksel, Mehmet Akif; Koncagül, Seyrani; Soysal, Deniz; Yildirir, Mesut
    This study was conducted to investigate the effects of year, parity and birth type (BT) on lactation milk yield (LMY), adjusted lactation milk yield based on 150 days lactation length (LMY150), lactation length (LL), average daily milk yield (ADMY) and milk components (MC) of Bandırma sheep. The study was carried out with 54 ewes in 2011 and 70 ewes in 2012 under semi-intensive conditions. LMY, LMY150, LL and ADMY of Bandırma sheep were determined as 70.31 kg, 73.29 kg, 142.02 days and 488.19 g, respectively. The effect of the year on LL was significant (P<0.01), but the effects of parity and BT were not significant. The effects of the year and parity were significant (P<0.01 and P<0.05, respectively) on LMY, LMY150 and ADMY, but the effect of BT was not significant. Fat, protein, lactose, total dry matter (DM) and non-fat dry matter (NFDM) were determined as 5.26%, 6.11%, 3.29%, 15.49% and 10.23%, respectively. Highly significant positive correlations were determined between fat content and DM (r= 0.998; P<0.01) and between fat content and NFDM (r= 0.949; P<0.01), whereas fat content was negatively correlated with ADMY (r= -0.992; P<0.01) and lactose content (r= -0.957; P<0.01). Significant negative correlations (P<0.01) were found between lactose content and other milk components except for protein content and ADMY. The results indicated that despite being a mutton type crossbred, lactation characteristics and MC of Bandırma sheep are also considerable. © Ankara Üniversitesi Ziraat Fakültesi.
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    Reproductive Performance and Lamb Growth Characteristics of Ramlic Sheep
    (KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2010) Ceyhan, Ayhan; Sezenler, Tamer; Yildirir, Mesut; Erdogan, Ismail
    This study was carried out to investigate some reproductive and lamb growth performance of Ramlic sheep in 2005, 2006, 2007 and 2008 years. The effect of year was found significant on fecundity and litter size of the ewes. The average fecundity, litter size and lamb survival rate of Ramlic ewes were 0.79, 1.13 and, 94.9%, respectively. The birth weight (BW), weaning weight (WW) and six month live weight (SMLW) for male and female lambs were 4.63 kg and 4.20 kg, 30.92 and 26.94 kg, 37.40 and 33.21 kg, respectively. The effect of age of dam, year, birth type and sex were significant on BW, WW and ADWG of lambs. The average daily weight gain of lambs at weaning was 286.88 g and male and female lambs were 303.62 g and 270.13 g, respectively.
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    The Comparison of Milk and Reproductive Performance of Saanen and Saanen × Hair Goat Crossbreds (F1, B1 & B2) and Growth Performance of their Kids in Semi-Intensive Production System
    (2019) Yıldırır, Mesut; Karadağ, Orhan; Yılmaz, Mustafa; Yüksel, Mehmet Akif; Sezenler, Tamer; Ceyhan, Ayhan
    The aims of this study were to evaluate the traits of reproductive, milking and growth performance of Saanen and Saanen × Hair crossbreds (F1, B1 and B2) raised at the Bandırma Sheep Research Institute. The data were collected from 868 goats for reproductive performance and milk yield and from 1077 kids for survival performance between 2009-2012. Milk components (fat, protein, lactose and non-fat dry matter) of goats (n=162) and body weight changes of kid’s (n=64) were evaluated for one year in 2012. Estrus rates and survival rates were similar among all genotypes. Kidding rate was significantly higher in F1 goats than Saanen goats. Saanen goat had the lowest average mean daily milk yield compared with other genotypes. The effect of year and age were significant on milk yield. Goats in F1 and B1 genotypes had higher milk protein percentage and non-fat dry matter content in comparison with Saanen and B2 genotype. Milk fat and lactose contents were similar among genotypes. Birth weight and monthly live weight were similar between genotypes while weaning weight, six month live weight and yearling live weight were higher in B1 kids in comparison with Saanen kids. The effect of dam age and birth type were significant on birth weight, monthly live weight and weaning weight. The findings related to performance characteristics in goatgenotypes investigated show that B1 genotype could be recommend for semi-intensive production system in the Western Anatolia.
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    The comparison of some reproduction traits and lambs growth performance of ex situ and in situ conserved Kivircik Sheep
    (ELSEVIER SCIENCE BV, 2014) Sezenler, Tamer; Ceyhan, Ayhan; Yildirir, Mesut; Erdogan, Ismail
    The objective of this study is to compare the reproductive performance of the ewes, the lambs' growth characteristics, and the variable costs in the sheep enterprises for ex situ and in situ conserved Kivircik sheep flocks. In total, 1841 ewes were included in the study. The ex situ Kivircik sheep flock had 929 ewes and the in situ Kivircik sheep flock had 912 ewes and their 1864 lambs were born in the months of January and February from 2007 to 2011. The lambing rates of the in situ and the ex situ flocks were 83.9% and 74.7% (P < 0.01), respectively, the differences in the results were significant between the conservation types. The fecundity of the in situ and the ex situ flocks was 1.1 and 1,0 lambs (P < 0.01), and litter size was the same (1.3, P > 0.05). The least squares means of the birth weight, the weaning weight at the 90th day of the lambs, and the post-weaning daily live weight gain of the in situ and ex situ conserved lambs were 4.2 and 3.7 kg (P < 0.01), 25.4 and 24.9 kg (P < 0.01), and 234 and 234.3 g/day (P > 0.05), respectively. The average mean survival rate of the in situ and the ex situ conserved lambs were 96.2% and 90.0%, respectively, and differences were significant (P < 0.01) between the conservation types. In the ex situ sheep enterprises, proportional profit was 0.62, in other words, each 100(sic) expense corresponds to a loss of 38(sic). However, for the in situ sheep enterprise, this ratio was 1.17, meaning that each 100 expense corresponds to a profit of 17(sic). The present study demonstrated that the in situ conserved Kivircik sheep had higher growth performance, higher lamb survival rate and was more profitable than the ex situ conserved Kivircik sheep. (C) 2013 Elsevier B.V. All rights reserved.