Influence of nitrogen based supplements on live weight, fertility and mortality of heifers grazing dry season native pasture
Data(s) |
1982
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Resumo |
Supplements containing urea or biuret were fed in the dry season to yearling and two year old pregnant heifers grazing native spear grass pastures in north Queensland. Liveweight change and survival during the dry season and fertility in the following year were measured. In the first experiment during a relatively favourable dry season, supplementation significantly (P<0.01) reduced liveweight loss in yearling heifers (5 vs. 32 kg). In the following year during a drought, supplement significantly (P<.01) reduced liveweight loss in yearling heifers (32 vs. 41 kg) and significantly (P <0.01) reduced mortalities (23.5% vs. 5.2%) in pregnant and lactating heifers. The supplement had no significant effect on subsequent fertility in either experiment. 14th Biennial Conference. |
Formato |
application/pdf |
Identificador |
Taylor, W.J. and Holroyd, R.G. and Rebgetz, J.G. (1982) Influence of nitrogen based supplements on live weight, fertility and mortality of heifers grazing dry season native pasture. In: Animal Production in Australia: The Australian Society of Animal Production. Fourteenth Biennial Conference. |
Publicador |
Australian Society of Animal Production - ASAP |
Relação |
http://era.daf.qld.gov.au/650/1/TaylorInfluenceNitrogen-SEC.pdf http://era.daf.qld.gov.au/650/ |
Palavras-Chave | #Meat production #Feeds and feeding. Animal nutrition |
Tipo |
Conference or Workshop Item PeerReviewed |