Fertility Traits of Holstein Cows Raised at Sarimsakli State Farm

[ X ]

Tarih

2007

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Univ Namik Kemal

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

The present research was carried out to determine some fertility traits in Holstein cows raised at Sarimsakli State Farm. Reproductive performance records within the period from 1983 to 2003 of 764 Holstein cows raised at the farm were constituted the research material. Effect of years on First Breeding Age (FBA), First Calving Age (FCA) and Calving Interval(CI) were significant(P<0,01). Effect of Season on CI was significant (P<0,05), however on FBA and FCA were not significant(P>0,05). Effects of Lactation Length (LL) and FCA on CI was not significant(P>0.05). Effect of FBA on FCA was significant(P<0,01). Overall means for FBA, FCA and CI were found as; 18,98 +/- 2,73 month, 28,15 +/- 2,50 month and 407,07 +/- 78,59 day, respectively.

Açıklama

Anahtar Kelimeler

Holstein, Fertility, First Breeding Age, First Calving Age, Calving Interval

Kaynak

Journal of Tekirdag Agriculture Faculty-Tekirdag Ziraat Fakultesi Dergisi

WoS Q Değeri

N/A

Scopus Q Değeri

Cilt

4

Sayı

3

Künye