Acta Veterinaria Eurasia
Research Article

Factors Affecting Milk Yield Estimated with ±L Different Methods in Brown Swiss Cattle

1.

Istanbul University Veterinary Faculty, Department of Animal Breeding and Husbandry, 34320 Avcilar, Istanbul, Turkey

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Department of Animal Breeding and Husbandry, İstanbul University Faculty of Veterinary Medicine, İstanbul, Turkey

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İstanbul Üniversitesi Veteriner Fakültesi Zootekni Anabilim Dalı

Acta Vet Eurasia 2013; 39: 55-62
Read: 822 Downloads: 518 Published: 24 December 2019

The aim of this study was to determine the effects of some environmental factors on milk yield levels that were estimated with different methods in Brown Swiss cattle raised in Altinova Farm. Study was carried out under similar feeding and management program. The effects of lactation turn, year and season were analysed in terms of measurable environmental factors. The data was statistically analyzed by means of the least-square method for the determination of the effects of environmental factors and by contrast-test (GLM procedure). Lactation milk yield (6294.7 kg, 6320.8 kg, 6313.9 kg) and 305 day milk yield (5927.1 kg, 6016.2 kg and 6047.5 kg) were estimated by Dutch (Holland), Swedish and Trapez methods in Brown Swiss cattle. The effects of lactation turn, year and season on lactation milk yield and 305 day milk yield were found as statistically significant (P<0.001).

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EISSN 2619-905X