Published January 1, 2019
| Version v1
Journal article
Open
INFLUENCE OF SOME ENVIRONMENTAL FACTORS ON MILK YIELD AND MILK COMPONENTS TRAITS IN JERSEY COWS
Creators
- 1. Uludag Univ, Fac Vet Med, Dept Genet, Bursa, Turkey
- 2. Univ Kirsehir Ahi Evran, Fac Agr, Dept Anim Sci, Kirsehir, Turkey
- 3. Univ Namik Kemal, Fac Agr, Dept Anim Sci, Tekirdag, Turkey
- 4. Univ Ondokuz Mayis, Fac Yasar Dogu Sport Sci, Dept Sport Management, Samsun, Turkey
- 5. Univ Ondokuz Mayis, Fac Agr, Dept Anim Sci, Samsun, Turkey
- 6. Univ Ataturk, Fac Agr, Dept Anim Sci, Erzurum, Turkey
Description
This study was conducted to assess the effects of stage of lactation, parity and sampling season on milk yield and milk components in Jersey cows in Karakoy State Farm, Turkey. The data set consisted of 2657 milk records of 204 Jersey cows collected from September 2011 to December 2013. For this purpose, test day milk yield (TDMY) records and milk samples were taken once a month for 10-month period after parturition. The effect of stage of lactation, parity and sampling season on TDMY, fat percentage, protein percentage, fat yield and protein yield were found statistically significant (P<0.01). TDMY were correlated with fat percentage (-0.235) and protein percentage negatively (-0.254) but with fat yield (0.755) and protein yield positively (0.950) (P<0.01).
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