Farklı yaşlarda sütten kesimin prolifik ve terminal ırk melez kuzuların büyüme özellikleri ve yaşama güçleri üzerine etkisi
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Tarih
2020
Yazarlar
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info:eu-repo/semantics/openAccess
Özet
Bu çalışmada, farklı yaşlarda sütten kesilen Romanov × Morkaraman (F1 Rom), Romanov × F1 Romanov (G1 Rom) ve Charollais × F1 Romanov (Charom) melez kuzularının büyüme ve yaşama gücü özellikleri karşılaştırılmıştır. Doğumdan sonra üç genotipten kuzular 50 ve 75 günlük iki ayrı yaşta sütten kesilmiş ve sütten kesim sonrası büyüme performansları 120 günlük yaşa kadar incelenmiştir. Doğum ağırlığına, üç ayrı genotip ve doğum şeklinin etkisi çok önemli, cinsiyetin etkisi önemsiz bulunmuştur. Sütten kesim ağırlığında ise sadece doğum şeklinin etkisi önemli bulunmuştur. Kuzu doğum ve sütten kesim ağırlıkları Charom, F1 Rom, G1 Rom kuzularında sırasıyla 3,38-15,28; 3,98-15,04; 3,21-15,55 kg tespit edilmiştir. Doğum şekli kuzu doğum ağırlıkları bakımından varyasyon göstermiş ve doğumda yavru sayısı arttıkça kuzu doğum ağırlıklarında (Tekiz: 4,19 kg; İkiz: 3,42 kg; Üçüz: 3,15 kg ve Dördüz: 2,88 kg) düşüş gözlenmiştir. Doğum şeklinin sütten kesim ağırlıklarına etkisi ise tekiz ve üçüzlerde benzer bulunmuştur. Tekiz doğan kuzular ikiz ve dördüz doğanlardan daha yüksek sütten kesim ağırlığına ulaşmışlardır. Sütten kesime kadar günlük canlı ağırlık arıtışı (G.C.A.A) tekiz doğan kuzularda 247,37 gr ile ikiz (190,67 gr), üçüz (201,44 gr) ve dördüz (178,57 gr) doğanlardan daha yüksek bulunmuştur. Sütten kesim yaşının sütten kesim ağırlıklarına etkisi önemsiz bulunmuştur. Sütten kesim sonrası ilk ay ağırlığına kuzu genotipi, doğum şekli ve cinsiyetin etkisi önemsiz iken, sütten kesim yaşının sütten kesim ve sütten kesim sonrası ilk aya kadar G.C.A.A’na etkisi önemli bulunmuştur. Geç sütten kesilen kuzular, daha yüksek sonraki ilk ay canlı ağırlık (18,62-17,89 kg) ve G.C.A.A (179,45- 81,32 g ) sahip olmuşlardır. Kuzuların 120. gün canlı ağırlıkları benzer bulunmuştur ve incelenen faktörlerden hiç birisinin etkisine rastlanmamıştır
In this study, we compared the growth and survival characteristics of Romanov × Morkaraman (F1 Rom), Romanov × F1 Romanov (G1 Rom) and Charollais × F1 Romanov (Charom) crossbreed lambs weaning weight at different ages. After birth, from three genotypes lambs were weaned at two different ages of 50 and 75 days and growth performance after weaning was examined at 120 days of age. The effect of three different genotypes and birth type on birth weight was very important, and sex effect was insignificant. In weaning weight, only the effect of birth type was found to be significant. Lamb birth and weaning weights were in Charom, F1 Rom, G1 Rom lambs, 3.38-15.28; 3.98-15.04; 3.21-15.55 kg, respectively. The type of birth showed variation in the birth weight of the lamb and the decrease in lamb birth weights (Single: 4.19 kg: Twin: 3.42 kg; Triplet: 3.15 kg and Quadrature: 2.88 kg) was observed as the number of offspring increased. The effect of the birth type on weaning weights was similar in single and triplet. Single-born lambs have higher weaning weights than those of twins and quadruplets. Average daily live weight gain (ADG) from weaning in single lambs, 247.37 g were found higher than twin (190.67 g), triplets (201.44 g) and quadruplets (178.57 g). The effect of weaning age was insignificant on weaning weights. The first month weight after weaning, effect of the genotype of the lamb, the birth type and the sex were insignificant; but effect of weaning age was significant weaning weights and first month after weaning weights the ADG. The late weaned lambs had higher next first month live weight (18.62-17.89 kg) and ADG (179.45-81.32 g). The live weights of the lambs on the 120 days were similar and none of the factors investigated were found to be effective.
In this study, we compared the growth and survival characteristics of Romanov × Morkaraman (F1 Rom), Romanov × F1 Romanov (G1 Rom) and Charollais × F1 Romanov (Charom) crossbreed lambs weaning weight at different ages. After birth, from three genotypes lambs were weaned at two different ages of 50 and 75 days and growth performance after weaning was examined at 120 days of age. The effect of three different genotypes and birth type on birth weight was very important, and sex effect was insignificant. In weaning weight, only the effect of birth type was found to be significant. Lamb birth and weaning weights were in Charom, F1 Rom, G1 Rom lambs, 3.38-15.28; 3.98-15.04; 3.21-15.55 kg, respectively. The type of birth showed variation in the birth weight of the lamb and the decrease in lamb birth weights (Single: 4.19 kg: Twin: 3.42 kg; Triplet: 3.15 kg and Quadrature: 2.88 kg) was observed as the number of offspring increased. The effect of the birth type on weaning weights was similar in single and triplet. Single-born lambs have higher weaning weights than those of twins and quadruplets. Average daily live weight gain (ADG) from weaning in single lambs, 247.37 g were found higher than twin (190.67 g), triplets (201.44 g) and quadruplets (178.57 g). The effect of weaning age was insignificant on weaning weights. The first month weight after weaning, effect of the genotype of the lamb, the birth type and the sex were insignificant; but effect of weaning age was significant weaning weights and first month after weaning weights the ADG. The late weaned lambs had higher next first month live weight (18.62-17.89 kg) and ADG (179.45-81.32 g). The live weights of the lambs on the 120 days were similar and none of the factors investigated were found to be effective.
Açıklama
Anahtar Kelimeler
Sütten kesim yaşı, Romanov, Charollais, Melez, İkiz, Weaning weight age, Romanov, Charollais, Crossbreed, Twin
Kaynak
Turkish Journal of Agriculture - Food Science and Technology / Türk Tarım - Gıda Bilim ve Teknoloji Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
8
Sayı
11
Künye
Korkmaz, M. K., & Emsen, E. (2020). The Effects of Weaning at Different Ages on Growth Performances and Survival Rates of Profilic and Terminal Lamb Breeds. Turkish Journal of Agriculture-Food Science and Technology, 8(11), 2255-2260.
