Influence of body condition on ovulatory response to lupin (Lupinus angustifolius) supplementation of sheep

B. H.G. Pearse; N. P. McMeniman; Ian Gardner

doi:10.1016/0921-4488(94)90027-2

Influence of body condition on ovulatory response to lupin (Lupinus angustifolius) supplementation of sheep

B. H.G. Pearse, N. P. McMeniman, Ian Gardner

School of Veterinary Medicine

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Fifteen mature Merino ewes were fattened with a maize grain/alfalfa chaff diet while an equal-sized group of similar ewes were maintained in store (score 2) condition (mean BW difference 11 kg). All sheep were then fed a maintenance diet of oat chaff. Following synchronization of all sheep with intravaginal sponges containing 40 mg progestagen, half of each group were fed a lupin (Lupinus angustifolius) grain supplement of 750 g/head/d from d 8 onwards of progestagen treatment. Ovulation rate following removal of the sponges was 64% higher (P<0.05) in the lupin-supplemented group but was not affected (P>0.05) by the condition score of the ewes. Plasma glucose, plasma urea nitrogen and some plasma amino acids were higher (P<0.05) in the lupin-supplemented group. These results indicate that nutritional flushing may increase ovulation rate of ewes regardless of their body condition.

Original language	English (US)
Pages (from-to)	27-32
Number of pages	6
Journal	Small Ruminant Research
Volume	13
Issue number	1
DOIs	https://doi.org/10.1016/0921-4488(94)90027-2
State	Published - Jan 1 1994

Keywords

Body condition
Lupin
Ovulation
Sheep

ASJC Scopus subject areas

Food Animals
Animal Science and Zoology

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title = "Influence of body condition on ovulatory response to lupin (Lupinus angustifolius) supplementation of sheep",

abstract = "Fifteen mature Merino ewes were fattened with a maize grain/alfalfa chaff diet while an equal-sized group of similar ewes were maintained in store (score 2) condition (mean BW difference 11 kg). All sheep were then fed a maintenance diet of oat chaff. Following synchronization of all sheep with intravaginal sponges containing 40 mg progestagen, half of each group were fed a lupin (Lupinus angustifolius) grain supplement of 750 g/head/d from d 8 onwards of progestagen treatment. Ovulation rate following removal of the sponges was 64% higher (P<0.05) in the lupin-supplemented group but was not affected (P>0.05) by the condition score of the ewes. Plasma glucose, plasma urea nitrogen and some plasma amino acids were higher (P<0.05) in the lupin-supplemented group. These results indicate that nutritional flushing may increase ovulation rate of ewes regardless of their body condition.",

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AU - Gardner, Ian

PY - 1994/1/1

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N2 - Fifteen mature Merino ewes were fattened with a maize grain/alfalfa chaff diet while an equal-sized group of similar ewes were maintained in store (score 2) condition (mean BW difference 11 kg). All sheep were then fed a maintenance diet of oat chaff. Following synchronization of all sheep with intravaginal sponges containing 40 mg progestagen, half of each group were fed a lupin (Lupinus angustifolius) grain supplement of 750 g/head/d from d 8 onwards of progestagen treatment. Ovulation rate following removal of the sponges was 64% higher (P<0.05) in the lupin-supplemented group but was not affected (P>0.05) by the condition score of the ewes. Plasma glucose, plasma urea nitrogen and some plasma amino acids were higher (P<0.05) in the lupin-supplemented group. These results indicate that nutritional flushing may increase ovulation rate of ewes regardless of their body condition.

AB - Fifteen mature Merino ewes were fattened with a maize grain/alfalfa chaff diet while an equal-sized group of similar ewes were maintained in store (score 2) condition (mean BW difference 11 kg). All sheep were then fed a maintenance diet of oat chaff. Following synchronization of all sheep with intravaginal sponges containing 40 mg progestagen, half of each group were fed a lupin (Lupinus angustifolius) grain supplement of 750 g/head/d from d 8 onwards of progestagen treatment. Ovulation rate following removal of the sponges was 64% higher (P<0.05) in the lupin-supplemented group but was not affected (P>0.05) by the condition score of the ewes. Plasma glucose, plasma urea nitrogen and some plasma amino acids were higher (P<0.05) in the lupin-supplemented group. These results indicate that nutritional flushing may increase ovulation rate of ewes regardless of their body condition.

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