Prediction of Live Weight from Chest Girth From Birth to 12 Months of Age in Yerli Kara Cattle

Yıl 2020, Cilt: 3 Sayı: 3, 200 - 204, 01.07.2020

Çağrı Melikşah Sakar İlker Ünal Alaeddin Okuroğlu Muhammed İkbal Coşkun Ugur Zulkadir

Öz

This research was carried out to estimate live weights with linear regression models from various body measurements in the period between birth and twelve months age in Yerli Kara (Anatolian Black) cattle. The animal material of this study was composed of 104 head Yerli Kara cattles located in Ankara province. In the study, all correlation coefficients (except for the rump height - chest depth relationship in birth period) were found to be positive and statistically significant (p<0.01). The highest correlation coefficient value was found between live weights and chest girth in all periods. R² values were found as 64%, 77.1%, 75.4% and 77.1% at birth, 3, 6 and 12 months of age respectively. It is concluded that the equations found as a result of regression analysis between the chest girth and live weight can be used to accurately estimate live weights in Yerli Kara cattle. Besides, live weights were estimated using the regression model in the specified periods and the results are presented in tables for practical use.

Anahtar Kelimeler

Correlation coefficients, Live weights, Regression, Yerli Kara (Anatolian Black) cattle

Kaynakça

• Akbulut O, Bayram B, Tüzemen N, Aydın R. 2002. Esmer ırk buzağıların doğum ağırlığı ve doğumdaki bazı vücut ölçülerine ait fenotipik ve genetik parametre tahminleri. Atatürk Üniv Ziraat Fak Derg, 33(1): 59-64.
• Ashwini JP, Sanjay P, Amipara GJ, Lunagariya PM, Parmar DJ, Rank DN. 2019. Prediction of body weight based on body measurements in crossbred cattle. Int. J Curr Microbiol App Sci, 8(3): 1597-1611.
• Bhagat V, Khune V, Chourasia SK, Gendley MK, Mukherjee K. 2016. Linear regression equations for estimation of body weights in Sahiwal calves. J Anim Res, 6(2): 341-344.
• Bozkurt Y. 2006. Prediction of body weight from body size measurements in Brown Swiss feedlot cattle fed under small-scale farming conditions. J Applied Anim Res, 29(1): 29-32.
• Koc A, Akman N. 2007. Siyah-Alaca tosunların değişik dönemlerdeki vücut ölçüleri ve vücut ölçülerinden canlı ağırlığın tahmini. Adnan Menderes Üniv Ziraat Fak Derg, 4(1/2): 21-25.
• Ozhan M, Tüzemen N, Yanar M. 2004. Büyükbaş Hayvan Yetiştirme (Süt ve Et Sığırcılığı). Atatürk Üniversitesi Ziraat Fakültesi Yayın No:134, Atatürk Üniv Ziraat Fak. Ofset Tesisi, Erzurum; p. 124.
• Ozkaya S, Bozkurt Y. 2009. The accuracy of prediction of body weight from body measurements in beef cattle. Archiv Tierzucht, 52(4): 371-377.
• Ozlütürk A, Kopuzlu S, Güler O, Yanar M. 2006. Determination of linear regression models for estimation of body weights of Eastern Anatolian Red cattle. Atatürk Üniv Ziraat Fak Derg, 37(2): 169-175.
• Sekerden O, Aydın N. 1992. İsrail Friesian Sığırlarında canlı ağırlığın muhtelif vücut ölçüleri ile ilişkisi ve göğüs çevresinden yararlanarak canlı ağırlığın tahmini. Turk J Vet Anim Sci, 16: 341-352.
• Tüzemen N, Yanar M, Akbulut O, Ugur F, Aydın R. 1995. Prediction of body weights from body measurements in Holstein-Friesian calves. Atatürk Üniv Zir Fak Derg, 26(2): 245-252.
• Ulutas Z, Saatci M, Ozlütürk A. 2001. Prediction of body weights from body measurements in East Anatolian Red calves. Atatürk Üniv Ziraat Fak Derg, 32(1): 61-65.
• Yalcın B, Stepan V, Cihan D. 2017. Prediction of liveweight of Holstein and Brown Swiss cattle grown in an 12 month Intensive beef production system by using real-time body measurements. Lucrări Științifice-Universitatea de Științe Agricole și Medicină Veterinară, Seria Zootehnie, 67: 39-43.