Time of insemination in relation to pregnancy rates in beef cattle after oestrus detection with automated activity monitoring system.

ABSTRACT:

Background

The timing of artificial insemination is critical to achieve acceptable results in cattle production systems. Over the past 60 years the length and expression of oestrus in dairy cattle has altered. Recent studies have indicated the optimal timing for insemination after the commencement of oestrus may now be earlier than traditional recommendations in beef cattle, as is the case in dairy cattle. The aim of the current study was to evaluate the effect of time from onset of oestrus [as determined by an automated activity monitoring system (AAMS)] to artificial insemination (AI) on pregnancy outcome in Norwegian beef cattle. Five commercial beef suckler herds participated in a cohort study by providing data on the time of AAMS alarm and time of AI. Blood sampling on the day

SUBMITTER: Haadem CS 

PROVIDER: S-EPMC10257325 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature