Cobb ırkı broylerlerde karkas ağırlığının bazı kemiklerin gelişimlerine etkisinin incelenmesi
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Date
2000-11-21
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Uludağ Üniversitesi
Abstract
Bu araştırmada karkas ağırlığı 1300-1400 gr. (I. grup) ve 1500-1600 gr. (II. grup) olan Cobb ırkı erkek broylerler materyal olarak kullanıldı. 40’ar günlük olan broylerlerden herbir grup için 45’er adet kullanıldı ve bunların bazı kemiklerinin gelişimleri incelendi. İki grubun karkasları arasındaki farklılık %12,6, üst ve alt gövde uzunlukları arasındaki farklılık ise sırasıyla %3,9 ve %4,6 idi. Kemiklerin ağırlıkları arasında en fazla farklılık fibula (%33,3), tibiotarsus (%32,2) ve os coracoides’de (30,2), en az farklılık da furcula’da (14,3) saptandı. Uzunluklar arasında en fazla farklılık os coracoides (%12,7), furcula (%12,2) ve ulna’da (%9,8), en az farklılık da fibula’da (%1,4) tespit edildi. Kemiklerin kalınlıkları arasında furcula ve scapula’da I. ve II. kalınlık bölgelerinde iki grup arasında fark görülmedi. I. kalınlık bölgesinde iki grup arasındaki en fazla farklılık %44,2 ile tibiotarsus’da; II. kalınlık bölgesinde de %30,8 ile ulna’da saptandı. Sonuçta bu çalışmada karkas ağırlığındaki artışın birinci derecede kemiklerin ağırlığını, ikinci derecede de kalınlığını (furcula ve scapula kalınlıkları hariç) etkilediği, üçüncü ve en az derecede de kemiklerin uzunluğunu etkilediği tespit edildi.
In this study, cobb race broilers of which carcass weight are 1300-1400 g for group I and 1500-1600 g for group II were used as materials. 40-day old 45 broilers were used for each group and development of their some bones were investigated. The difference between carcass weights of two groups was 12.6 %, and the difference between the lengths of upper and lower body were 3.9 % and 4.6 % respectively. The maximum difference in the weights of the bones was 33.3 % in fibula, 32.2 % in tibiotarsus and 30.2 % in os coracoides, and the minimum difference was found in furcula as 14.3 %. The maximum difference among lengths was found in os coracoides as 12.7 %, 12.2 % in furcula, 9.8 % in ulna, and the minimum difference was found in fibula as 1.4 %. It was found that there was no difference between the Ist and IInd thickness sections of bone thickness of furcula and scapula of two groups. The maximum difference found in tibiotarsus was 44.2 % in the Ist thickness section and 30,8 % in ulna in the IInd thickness section. As a result, it was found that the increase in the carcass weight primarily affects bone weights, secondarily bone thickness (except furcula and scapula) and finally it affects the length of the bones in the smallest degree.
In this study, cobb race broilers of which carcass weight are 1300-1400 g for group I and 1500-1600 g for group II were used as materials. 40-day old 45 broilers were used for each group and development of their some bones were investigated. The difference between carcass weights of two groups was 12.6 %, and the difference between the lengths of upper and lower body were 3.9 % and 4.6 % respectively. The maximum difference in the weights of the bones was 33.3 % in fibula, 32.2 % in tibiotarsus and 30.2 % in os coracoides, and the minimum difference was found in furcula as 14.3 %. The maximum difference among lengths was found in os coracoides as 12.7 %, 12.2 % in furcula, 9.8 % in ulna, and the minimum difference was found in fibula as 1.4 %. It was found that there was no difference between the Ist and IInd thickness sections of bone thickness of furcula and scapula of two groups. The maximum difference found in tibiotarsus was 44.2 % in the Ist thickness section and 30,8 % in ulna in the IInd thickness section. As a result, it was found that the increase in the carcass weight primarily affects bone weights, secondarily bone thickness (except furcula and scapula) and finally it affects the length of the bones in the smallest degree.
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Keywords
Broyler, Karkas ağırlığı, Kemik, Gelişim, Broilers, Carcass weight, Bone, Development
Citation
Serbest, A. (2001). "Cobb ırkı broylerlerde karkas ağırlığının bazı kemiklerin gelişimlerine etkisinin incelenmesi". Uludağ Üniversitesi Veterinerlik Fakültesi Dergisi, 20(1-2), 117-120