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Heifer fertility on commercial cattle properties in the Northern Territory

Schatz, TJ and Hearnden, MN (2008). Heifer fertility on commercial cattle properties in the Northern Territory. Australian Journal of Experimental Agriculture,48(7):940-944.

Document type: Journal Article
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Title Heifer fertility on commercial cattle properties in the Northern Territory
Author Schatz, TJ
Hearnden, MN
Journal Name Australian Journal of Experimental Agriculture
Publication Date 2008
Volume Number 48
Issue Number 7
ISSN 0816-1089   (check CDU catalogue open catalogue search in new window)
Start Page 940
End Page 944
Total Pages 5
Place of Publication Australia
Publisher CSIRO
Field of Research 0702 - Animal Production
HERDC Category C1 - Journal Article (DEST)
Abstract The performance of heifers at their first (maiden heifers) and second matings (first lactation heifers) was recorded between 2003 and 2008 to establish current heifer fertility levels on 14 commercial cattle properties in the Northern Territory (NT). Pregnancy rates in maiden heifers (joined first at ~2 years of age) were generally adequate (>75%) to produce enough pregnant replacement breeders. Pregnancy rates in first lactation heifers were often very low (70%). Calf loss between pregnancy diagnosis and weaning in first lactation heifers was often high (>30%). The average of the calf loss figures from all the herds studied was 22%.
DOI http://dx.doi.org/10.1071/EA08057   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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Created: Thu, 07 May 2009, 11:14:17 CST by Sarena Wegener