Reproductive performance of 50% Bos Indicus cattle grazing the Mitchell grasslands of north Queensland
Paper
Paper/Presentation Title | Reproductive performance of 50% Bos Indicus cattle grazing the Mitchell grasslands of north Queensland |
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Presentation Type | Paper |
Authors | Holroyd, R. G. (Author), Smith, P. C. (Author), Thompson, P. J. M. (Author) and Toleman, Mark (Author) |
Journal or Proceedings Title | Proceedings of the Australian Rangelands Conference 1988 |
Number of Pages | 4 |
Year | 1988 |
Conference/Event | 1988 Australian Rangelands Conference |
Event Details | 1988 Australian Rangelands Conference Event Date Jun 1988 Event Location Longreach, Australia |
Abstract | [Summary]: The mean pregnancy rate over the eight years (1973 to 1980) was 91.4% ranging from 79.0% to 96.0%. Mean pregnancy rates and ranges for variousage groups were (i) 2 year old heifers, 93.4% (86.2 - 97.6%), (ii) wet 3 year old cows, 79.6% (41.4 - 94.4%), (iii) wet 4 year old and older cows, 92.4% (74.4 - 96.6%). Generally, dry cows had higher conception rates than wet cows. Lactation failures (cows pregnant one year but dry at the following year's pregnancy test) wer 9.3% (range 4.7 - 15.8%). Age of dam had no effect on prevalence of lactation failures. Body condition levels were dependent on seasonal conditions and the mean herd body condition varied from 4.8 (backward store-store) to 7.5 (prime-fat). |
Keywords | reproductive performance; Bos Indicus; Mitchell grasslands |
ANZSRC Field of Research 2020 | 310506. Gene mapping |
300305. Animal reproduction and breeding | |
Public Notes | No evidence of copyright restrictions preventing deposit. |
Byline Affiliations | Department of Primary Industries, Queensland |
Department of Primary Industries, New South Wales | |
Faculty of Business and Law |
https://research.usq.edu.au/item/9z0z0/reproductive-performance-of-50-bos-indicus-cattle-grazing-the-mitchell-grasslands-of-north-queensland
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