The effect of lactation number on milk production and reproduction in Holstein cows

Ozcelik M., Arpacik R.

TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, vol.24, no.1, pp.39-44, 2000 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 1
  • Publication Date: 2000
  • Journal Name: TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.39-44
  • Keywords: Holstein, lactation number, milk and reproductive traits, DAIRY-CATTLE, SEASON, FARM
  • Ankara University Affiliated: No

Abstract

This study was carried out to investigate the effect of lactation number on milk production and reproduction. Data on milk and reproductive traits in the first five lactations of Holstein cows reared at Bala State Farm were used. The following characteristics were studied: milk yield, lactation duration and dry period. The following reproductive traits were also studied: number of inseminations per conception, service period, gestation period and calving interval.