Relationships between milk insulin-like growth factor-I (IGF-I) concentration and body condition score with reproductive performance and milk yield in Jersey cows

Kul E., Erdem H.

LARGE ANIMAL REVIEW, vol.24, no.2, pp.65-70, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 2
  • Publication Date: 2018
  • Journal Name: LARGE ANIMAL REVIEW
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.65-70
  • Keywords: Jersey cow, insulin-like growth factor-I, body condition score, milk production, reproduction, POSTPARTUM DAIRY-COWS, ENERGY-BALANCE, EARLY LACTATION, FOLLICULAR DEVELOPMENT, BINDING-PROTEINS, HOLSTEIN COWS, BOVINE-MILK, FERTILITY, TRAITS, CATTLE
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

Introduction - One of the most important hormones affecting reproductive and milk yield is insulin-like growth factor I (IGF-I). IGF-I is closely related to nutritional status and the post-partum ovarian activity in dairy cows. It also stimulates milk synthesis and its secretion. Body condition score (BCS) is a useful management tool routinely used to predict body fat storage and energy status in dairy cows and has a strong influence on milk production and reproductive efficiency for the upcoming lactation after calving. Many publications have been available on BCS and serum or plasma IGF-I in Holstein cows. However, the information regarding the milk of Jersey cows has been limited. Therefore, further studies have been required to reveal the effect of IGF-I and BCS on reproduction and milk yield traits of this breed.