The Influence of Calving Year on Milk Yield and Milk Components in Dairy Cattle

Autor: COBANOGLU, Ozden, KUL, Ertugrul
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Volume: 38, Issue: 1 29-34
Journal of Research in Veterinary Medicine
ISSN: 2667-6745
Popis: The aim of this study was to identify the effect of calving year on milk yield and milk composition traits in Holstein and Jersey cattle raised inthe Marmara and Black Sea Regions of Turkey, respectively. The data set consisted of 582 dairy cows, which were 306 Holstein raised and 276Jersey cows calving from 2011 to 2013. Except for fat yield, test day milk yield (TDMY), 305-day milk yield (305 DMY), fat percentage, proteinpercentage and protein yield of Jersey cows were affected by calving season. The effect of calving year on TDMY, 305 DMY, fat percentage, fatyield, protein percentage and protein yield of Holstein cows were found to be statically significant. In conclusion, in 2011 to 2013, milk yieldand its composition in both Holstein and Jersey cows were significantly related to calving year.
Databáze: OpenAIRE