Effect of Nutrition on the Response in Ovulation Rate in Merino Ewes following Short-term Lupin Supplementation and Insulin Administration
Article
Article Title | Effect of Nutrition on the Response in Ovulation Rate in Merino Ewes following Short-term Lupin Supplementation and |
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ERA Journal ID | 5177 |
Article Category | Article |
Authors | Leury, B. J. (Author), Murray, P. J. (Author) and Rowe, J. B. (Author) |
Journal Title | Australian Journal of Agricultural Research |
Journal Citation | 41 (4), pp. 751-759 |
Number of Pages | 9 |
Year | 1990 |
Publisher | CSIRO Publishing |
Place of Publication | Australia |
ISSN | 0004-9409 |
1444-9838 | |
Digital Object Identifier (DOI) | https://doi.org/10.1071/AR9900751 |
Web Address (URL) | https://www.publish.csiro.au/cp/ar9900751 |
Abstract | Two experiments investigated the influence of the basal plane of nutrition on the response in ovulation rate in mature Merino ewes fed lupin grain supplements or given exogenous insulin. The first experiment studied the effect of basal nutrition on the response of ewes to short-term lupin supplementation. In the second experiment the effect of insulin on ovulation rate was studied. There were eight equal groups of ewks (n = 60, 2 groupsltreatment). Four groups were fed wheat chaff (500 g sheep-1 day-1) and the others fed wheat chaff (800 g sheep-1 day-1) plus a concentrate pellet (350 g sheep-1 day-1). On each plane of nutrition lupins were offered (750 g sheep-1 day-1) to 2 groups for 10 days before oestrus. In the second experiment, the same planes of basal nutrition were used and insulin (15 IU sheep-1 day-1) was given to two groups of the four groups on each plane of nutrition. There were increases in ovulation rate in response to lupin feeding in ewes on both planes of nutrition. There was no evidence that exogenous insulin, administered as a single daily injection, increased ovulation rate. |
Keywords | ovulation; merino |
ANZSRC Field of Research 2020 | 300305. Animal reproduction and breeding |
300303. Animal nutrition | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Department of Agriculture, Western Australia |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q63v4/effect-of-nutrition-on-the-response-in-ovulation-rate-in-merino-ewes-following-short-term-lupin-supplementation-and-insulin-administration
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