We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
AYDIN İLİNDE BAZI İŞLETMELERDE YETİŞTİRİLEN MONTBELİARDE VE SİYAHALACA IRKI SIĞIRLARIN SÜT VERİM VE SÜT KALİTE ÖZELLİKLERİ ÜZERİNE BİR ARAŞTIRMA: SÜT VERİM ÖZELLİKLERİ
- Authors
ÇETIN, Hakan; KOÇ, Atakan
- Abstract
In this research, phenotypic and genetic parameters of lactation length (LL), lactation milk yield (LMY), 305-d milk yield (305-dMY) from the records kept between 2001-2008 for Montbeliarde (MB) and Holstein-Friesian (HF) cows reared together at 22 dairy farms were estimated. For the estimation of the parameters, 1005 LL, 987 LSV and 1100, 305-dMY data belonging to 418 heads HF and 209 heads MB were used. For MB breed LL, LMY and 305-dMY averages were 317.16±4.748 d, 6,546.41±114.937 kg and 6,227.12±68.469 kg, respectively and the heritability estimates for these traits were 0.07±0.06, 0.32±0.07 and 0.36±0.07, respectively. For HF breed the averages of LL, LMY and 305-dMY were 328.32±4.492 d, 7,241.85±108.885 kg and 6,748.61±64.080 kg, the heritability estimates for these traits were 0.09±0.05, 0.26±0.05 and 0.36±0.04, respectively. Herd (p<0.01) and calving year effects on milk traits, bred effects on LMY(p<0.01) , 305-dMY (p<0.01) and LL (p<0.05) were found to be statistically significant (P<0.01). HF had 11.2 d longer LL and 695.4 kg and 521.5 kg higher LMY and 305- dMY than those of MB, respectively.
- Subjects
AYDIN Ili (Turkey); TURKEY; MILK quality; MILK yield; HOLSTEIN-Friesian cattle; DAIRY cattle breeds; DAIRY farms
- Publication
Journal of Adnan Menderes University, Agricultural Faculty, 2011, Vol 8, Issue 1, p31
- ISSN
1304-7787
- Publication type
Article