Results 161 to 170 of about 125,988 (221)

Periparturient alpha-lipoic acid supplementation improves ewe antioxidant status, colostrum quality, and lamb growth. [PDF]

Trop Anim Health Prod
Eldawy MH, Elken EM, Elnady IA, Asfour HAE, Mehany EN, Rashad MG, Samir H, El-Sherbiny HR, Fahim NH.   +8 more
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Lead and ragwort poisoning seen in cattle across Scotland. [PDF]

Vet Rec
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Differences in lamb production between ewe lambs and mature ewes

New Zealand Journal of Agricultural Research, 2021
ABSTRACT Currently, comparisons of lamb output from either ewe lambs or mature ewes are confounded, as the age groups are bred to different sires, and lamb at different times. The aim of this experiment was to compare the reproductive performance of ewe lambs and mature ewes, bred at the same time to the same sires, and lambed in the ...
Stephen Todd Morris, Anne Lisa Ridler, Rebecca Hickson   +2 more
exaly   +2 more sources

Abortion and Lamb Mortality between Pregnancy Scanning and Lamb Marking for Maiden Ewes in Southern Australia

Animals, 2022
The contribution of abortions to the overall mortality of lambs born to maiden (primiparous) ewes in Australia remains unclear. This cohort study aimed to quantify abortion and lamb mortality for ewe lambs and maiden Merino two-tooth ewes. Lamb mortality
Andrew N Thompson, Caroline Jacobson, Angus J D Campbell   +2 more
exaly   +2 more sources

Survival of fertilized ova from ewe lambs and adult ewes in the uteri of ewe lambs

Animal Reproduction Science, 1985
The cause of fertility differences between ewe lambs and adult ewes following natural oestrus were studied in Romneys. Insemination was determined by anterior vaginal swabbing. Fertilized ewe-lamb ova were returned to donor animals along with one matched fertilized adult ewe ovum and lambings were recorded.
W.H. McMillan, M.F. McDonald
openaire   +1 more source

Behaviour of the ewe and lamb at lambing and its relationship to lamb mortality

Applied Animal Ethology, 1975
Arnold, G.W. and Morgan, P.D., 1975. Behaviour of the ewe and lamb at lambing and its relationship to lamb mortality. Appl. Anim. Ethol., 2: 25–46. A number of behavioural traits associated with the maternal instinct of sheep were studied under paddock conditions over a range of breeds, age, climate, nutrition and locations in five lambings in south
G.W. ARNOLD, P.D. MORGAN
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The effect of ewe body condition at lambing on the performance of ewes and their lambs at pasture

The Journal of Agricultural Science, 1980
SUMMARYEwes in body condition scores of 2·4 (thin) or 3·2 (fat) on a 5-point scale and suckling twin lambs were grazed at two stocking rates for the first 16 weeks of lactation. Paddocks were grazed for periods of 2 weeks at densities of 80 and 160 ewes/ha in weeks 1–8 and then 70 and 140 ewes/ha in weeks 9/16 of lactation.Intakes of herbage by ewes ...
M. J. Gibb, T. T. Treache
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Breeding ewe lambs successfully to improve lifetime performance

Small Ruminant Research, 2014
Ewe lambs have the ability to be successfully bred at 7-9 months of age. Breeding ewe lambs has a number of advantages including increased profitability and lifetime reproductive performance.
S T Morris, P R Kenyon
exaly   +1 more source

Comparison of MOET in Texel ewe lambs and yearling ewes

Proceedings of the British Society of Animal Production (1972), 1994
Combined multiple ovulation and embryo transfer (MOET) from ewe lambs could significantly increase the rate of genetic progress in sheep improvement programmes (Smith, 1986). The benefits arise from a combination of an increased number of progeny from superior females and a reduction in the generation interval.
Wolf, BT, McDougall, I
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