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Öğe EFFECT OF CULTIVATED PASTURE AND INTENSIVE FATTENING ON CARCASS TRAITS AND MEAT QUALITY OF AWASSI LAMBS(Pakistan Agricultural Scientists Forum, 2024) Ceyhan, A.; Wilk, M.; Asghar, M. U.; Avci, M.; Hasan, M. U.; Tanrikulu, M. M.The study aimed to evaluate the carcass trait, meat quality and fatty acid profile of Awassi lambs under cultivated pasture fattening with a concentrated feed (CPF) and intensive fattening (IF) system. A total of 76 male Awassi lambs ( 36 lambs in the CPF group and 40 in the IF group, 85 days average age) were distributed in complete random design into two experimental groups. The final body weight was lower, but the average daily gain was higher for the lambs on the CPF compared to the lambs on the IF system. There were no significant differences (p>0.05) between CPF and IF system for dressing percentage (50.31 and 51.51%) and shrinkage loss (3.45 and 2.50%), pelvic limb (34.9 and 30.3%), thoracic limb (20.8 and 18.3%), flank (9.4 and 7.6%), neck (4.4 and 5.9%), and LTL section area (15.6 and 13.0 cm(2)), except for ribs (25.0 and 33.7%), which were higher in the intensive system. Also, meat pH and color value were not changed by the fattening systems. The fatty acid profile of the longissimus thoracis et lumborum muscles was assessed. The significant differences between groups were noted in margaric (1.00 and 1.80), heptadecenoic (0.51 and 0.99), eicosenoic (80.14 and 0.20), and linolenic fatty acids (0.21 and 0,19). In conclusion, the results of this study imply that carcass traits and meat quality were similar between CPF and IF systems in Awassi male lambs.Öğe EMISSIONS OF SOME GREENHOUSE GASES FROM THE MANURE OF EWES FED ON POMEGRANATE PEEL, YUCCA EXTRACT, AND THYME OIL(Corvinus Univ Budapest, 2018) Yurtseven, S.; Avci, M.; Cetin, M.; Ozturk, I; Boga, M.Sixteen dairy ewes 1 to 2 months pregnant and weighing 50.4 +/- 1.02 kg on average were randomly assigned to one of the four treatments, four animals to each treatment: 1) control, 2) yucca saponin (YE, 0.1%), 3) pomegranate peel (PP, 15%), or 4) thyme oil (TO, 0.1%). Total gas production from the fresh manure was measured and the contents of CH4, N2O, and CO2 were determined. Digestibility in vivo and nitrogen balance were also determined. Feed intake and body weight were not affected whereas some properties of the manure (dry matter, total N, ADF, and NDF but neither ash nor pH) were affected by the composition of the feed. Total manure production and the emissions of CH4 and CO2 expressed as parts per million per millilitre of manure were similar in all the four treatments whereas the content of N2O was higher in the control. Supplementing the rations with tannin, saponin, or thyme oil reduced N2O emissions from the manure.Öğe Evaluation of Production Performance Parameters of Two Laying Hen Strains Housed in Four Housing Environments(Facta-Fundacio Arnco Ciencia Tecnologia Avicolas, 2024) Tainika, B.; Sekero, A.; Abaci, Sh; Akyol, A.; Duman, M.; Sentuerk, Ye; Avci, M.This study investigated the impact of housing environment on performance parameters of the Lohmann LSL Classic (LW) and Lohmann Sandy (LS) strains. The deep litter (DL), free access to outdoor Mentha piperita (MP), Petroselinum crispum (PC), and Medicago sativa (MS) housing environments were examined. A total of 260 four-weekold birds were randomly allotted to DL and outdoor plant-associated groups, with four and three replicates, respectively, and 10 birds per replicate. Data collection for weekly feed intake began at 4 weeks until the end of the study. Weekly hen weights were measured from 4 weeks of age until the age of 50% egg production; and then later, at 52 weeks of age. From the day of the first egg until the last day of the study, eggs laid in each nest box tier (upper, middle, bottom, and floor) were recorded and weighed at 9:00 a.m., 12:00 noon, and 3:00 p.m. Housing environment influenced the age at first egg and 50% egg production, hen-day egg production, feed intake during the egg-laying period, feed conversion ratio, average egg weight, and egg size distribution ( p< 0.01; p< 0.05). Age at first egg and 50% egg production, hen-day egg production, feed intake, average egg weight, and egg size distribution varied between strains ( p< 0.01; p< 0.05). Most of the eggs were laid in the morning and on the upper nest box tier ( p< 0.01). Additionally, average egg weight varied among the egg-laying time and nest box tiers, and most of the eggs laid were in the large egg size (56-65 g) category ( p< 0.01). It was concluded that access to Medicago sativa offers hens the most ideal environment for production performance. The two strains were quite similar in terms of overall performance outcomes.Öğe In situ Rumen Degradation Characteristics of Maize, Sorghum and Sorghum-Sudan Grass Hybrids Silages as Affected by Stage of Maturity(Islamic Azad Univ, Rasht, 2018) Kilicalp, N.; Hizli, H.; Sumerli, M.; Avci, M.This research was conducted to investigate in situ degradation characteristics of maize, sorghum and sorghum-Sudan grass hybrids. whole plant of maize (TTM-815, DK-711), sorghum (SS-506, FS-5) and sorghum x Sudan grass hybrids (P-988, Grazer N2) were grown under semi-arid conditions and harvested at different maturity stages (mid-flowering (MF), milk-line (ML) and hard-dough (HD)) and ensiled. Three replicate silage samples were incubated at 0, 12, 24, 36, 48, 72 and 96 h. in three rumen fistulated Holstein heifers. Effects of species had a large impact on rumen degradation characteristics values (a, b, (a+b), c), effective dry matter degradability (EDMD) and metabolizable energy (ME) MJ/kg for maize (M), sorghum (S) and sorghum x Sudan grass hybrids (SSH) silages. Effective dry matter degradability (EDMD2) of dry matter was found as 286.65, 259.37, 265.0 g/kg for species silages, respectively (P < 0.0001). Acid detergent fiber (ADF) was found to be the best single predictor of effective dry matter degradability of sorghum x Sudan grass hybrids silages (P < 0.05, R=0.448).Öğe TREES IN SEMIARID ZONES - PERCEPTION OF ECOSYSTEM SERVICES AND COMMUNITY VALUES IN NIĞDE PROVINCE, CENTRAL ANATOLIA, TÜRKIYE(Aloki Applied Ecological Research And Forensic Inst Ltd, 2024) Olowu, E. A.; Riley, I. T.; Avci, M.Central Anatolia typifies the semiarid agroecological conditions of Turkiye given its low annual precipitation and winter temperatures. Wheat, barley, chickpea, lentil, vetch, apples and potatoes are largely grown in this zone but native perennials, including oaks, Turkish fir and poplar, are on the decline thereby limiting their contribution to ecosystem services. The disconnect between the value of trees and ecosystem services in Central Anatolia has not been studied previously. This study focused on the knowledge, importance, intercropping, ecosystem services, community values and planting of trees in Nigde, a representative province in Central Anatolia, Turkiye. A quantitative survey of 301 participants was conducted to understand their perception of selected trees grouped as nitrogen fixing and nonnitrogen fixing. Indicators were tested for association (chi 2) and responses were disaggregated into two participant groups, farmers and non-farmers. Generally, participants showed a widespread knowledge about the trees. The top five trees of perceived importance were fruit, poplar, hawthorn, black pine and oak which were mainly valued for environmental protection, health and income. High value tree agroforestry was a preference while perception of tree-based ecosystem services focused on cultural and provisioning services. Although there was considerable support for the concept of planting more trees, tree survival remains low and increased social engagement in further perennial studies is needed.
