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 | |
| State | Published - Jan 1 1994 |
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Keywords
- Body condition
- Lupin
- Ovulation
- Sheep
ASJC Scopus subject areas
- Food Animals
- Animal Science and Zoology
Cite this
Influence of body condition on ovulatory response to lupin (Lupinus angustifolius) supplementation of sheep. / Pearse, B. H.G.; McMeniman, N. P.; Gardner, Ian.
In: Small Ruminant Research, Vol. 13, No. 1, 01.01.1994, p. 27-32.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of body condition on ovulatory response to lupin (Lupinus angustifolius) supplementation of sheep
AU - Pearse, B. H.G.
AU - McMeniman, N. P.
AU - Gardner, Ian
PY - 1994/1/1
Y1 - 1994/1/1
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.
KW - Body condition
KW - Lupin
KW - Ovulation
KW - Sheep
UR - http://www.scopus.com/inward/record.url?scp=38149145156&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38149145156&partnerID=8YFLogxK
U2 - 10.1016/0921-4488(94)90027-2
DO - 10.1016/0921-4488(94)90027-2
M3 - Article
AN - SCOPUS:38149145156
VL - 13
SP - 27
EP - 32
JO - Small Ruminant Research
JF - Small Ruminant Research
SN - 0921-4488
IS - 1
ER -