DEPENDENCE OF UKRAINIAN MILK PRODUCTIVITY OF BLACK–SPOTTED BREED ON THE INDEX IN ORIGIN


  • Yu. V. Poslavska Lviv National University of Veterinary Medicine and Biotechnologies named after S. Z. Gzhytskyj, Lviv
  • E. I. Fedorovych Institute of animal biology NAAS, Lviv
Keywords: breed, cows, lactation, yield, fat content in milk, milk fat, index in origin, correlation, proportion of the influence

Abstract

It was searched milk productivity  of cows of Ukrainian Black – Spotted dairy breed  based on the index in origin of  Ltd. «Milk River» Sokal district, Lviv region. It was also established that with the increase of the index in origin milk productivity  of cows in all studied lactation was increased. Animals, except for the first lactation, were dominated for milk yields and the amount of butterfat an average herd size for the index originally more than 5,000 kg of milk.

The proportion of index of the impact origin for yield, according to lactation was within 13,73–23,19, the fat content in milk – within 0,45–12,39 %, the amount of milk fat – within 14,78 –21,34 %. As the number of lactations its proportion and connection with indicators of yield and quantity of milk fat were decreased.

 

Author Biographies

Yu. V. Poslavska, Lviv National University of Veterinary Medicine and Biotechnologies named after S. Z. Gzhytskyj, Lviv
assistant
E. I. Fedorovych, Institute of animal biology NAAS, Lviv
Dr. of agr. sci., professor

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Published
2016-03-08
How to Cite
Poslavska, Y. V., & Fedorovych, E. I. (2016). DEPENDENCE OF UKRAINIAN MILK PRODUCTIVITY OF BLACK–SPOTTED BREED ON THE INDEX IN ORIGIN. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Agricultural Sciences, 18(1), 106-110. Retrieved from https://nvlvet.com.ua/index.php/agriculture/article/view/3510