Some effects of feeding pasture silage as a supplement to pasture on reproductive performance in lactating dairy cows

Some effects of feeding pasture silage as a supplement to pasture on reproductive performance in lactating dairy cows
Peer reviewed

Abstract

Supplementation of a ryegrass/white clover pasture diet with pasture silage is a common management practice in New Zealand dairy herds. The effect of this supplementation on reproductive performance has not been investigated. Five herds of 20 cows were formed before calving commenced on 1 June 1992. From 5 August to 4 September, two of these herds were fed 5 kg/cow/day of pasture silage in addition to the ryegrass/white clover pasture offered to all herds. Pasture silage supplementation did not alter the intervals from calving to first ovulation, first oestrus, or to conception. However, it reduced the first service conception rate (37.5 % v. 53.3 %; difference ± sed = 15.8 ± 10.0 %, for pasture and silage and pasture only cows, respectively). A positive effect on reproductive performance of pasture silage supplementation was not demonstrated in this trial.

Access to the full text of this article is available:

through another providers website:

If you're a member or subscriber and believe you should have access:

Login

Otherwise:

Register for an account

Request new password

The whole of the literary matter of the New Zealand Veterinary Journal is copyright Taylor and Francis, Downloading this article signifies agreement with the terms and conditions of electronic access.