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A note on the effect of feeding regime on the performance of sows housed in a novel group-housing system

Published online by Cambridge University Press:  02 September 2010

J. Carol Petherick  and
Judith K. Blackshaw
J. Carol Petherick
Affiliation:
Department of Farm Animal Medicine and Production, University of Queensland, St Lucia, Queensland 4067, Australia
Judith K. Blackshaw
Affiliation:
Department of Farm Animal Medicine and Production, University of Queensland, St Lucia, Queensland 4067, Australia
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Abstract

The effects on sow reproductive performance of three feeding regimes (ration (R), ad libitum (A) and ration + straw (R + S)), in conjunction with partial barriers placed along the food trough, were investigated. Three groups of four sows were put on the regimes, in a group-housing system, over three consecutive gestations. Each trial lasted 13 days and took place during the first half of the gestation period. Sows on A ate about three times the amount of food that was allocated to them on R and R + S (2 kg per sow per day). Feeding regime did not affect any of the measures of reproductive performance (numbers of piglets liveborn, stillborn, weaned, birth and weaning weights). Sows of parity 7 and over had significantly fewer liveborn and more stillborn piglets compared with parities 2 to 6 (P < 0·05). It is probable that no adverse effects of the feeding regimes were found due to the short time that the sows were on them and because multiparous animals were used. It is suggested that the welfare of ration-fed sows, whose appetite is not satiated, is jeopardized and that this problem may be solved by the provision of fibrous foodstuffs.

Type
Note
Information
Animal Production , Volume 49 , Issue 3 , December 1989 , pp. 523 - 526
Copyright
Copyright © British Society of Animal Science 1989

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