Feed tossing behaviour of Holstein cows: evaluation of physiological stress state and rumen fermentation function.

ABSTRACT:

Background

Abnormal or stereotyped behaviours in dairy cows are common in large-scale indoor farms and are usually accompanied by high physiological stress levels. Feed tossing is an abnormal behaviour commonly seen in cows while being fed, making farm management difficult. However, the reasons behind this behaviour have not been sufficiently reported. The objective of this study was to explore the changes in rumen fermentation, serum indicators, inflammatory conditions and the performance of cows with feed tossing behaviour. Holstein cows with similar lactation stages in the same barn were subjected to behaviour observations two times per day for 21 consecutive days. Ten cows with feed tossing behaviour (FT) and ten cows without abnormal behaviours (CON) were selected for further

SUBMITTER: Sun F 

PROVIDER: S-EPMC9575279 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature