Results 251 to 260 of about 59,533 (287)

Repeat breeding in West African dwarf goats.

Revue d'elevage et de medecine veterinaire des pays tropicaux, 1984
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Risk of recurrence of repeat breeding in sows with a repeat breeding in the first parity.

Journal of Animal Science, 1996
Risk of recurrence of repeat breeding in sows with a repeat breeding in the 1st parity was investigated in 241 sow herds (1985-1990). The association between repeat breeding in the 1st and subsequent parities was examined using data on 9,120 sows. Each sow contributed only one pair of observations to the total data set. Occurrence of repeat breeding in
A R W Elbers, J H M Verheijden
exaly   +4 more sources

Comparative fertility of normal and repeat-breeding cows as embryo recipients

Theriogenology, 1985
Morphologically normal embryos were transferred surgically into uteri of normal and repeat-breeder cows at seven days post-estrus to compare embryo survival rates in the two kinds of cows. All cows were less than ten years of age and had no abnormal genital discharges, cystic ovarian follicles, or anatomical abnormalities of the reproductive tract ...
H W Hawk, J F Hasler, J F Hasler
exaly   +3 more sources

Aquapuncture Therapy of Repeat Breeding in Dairy Cattle

The American Journal of Chinese Medicine, 2002
Repeat breeders cause great economic loss in dairy herds. This study determined the efficacy of simple aquapuncture therapy (acupuncture combined with injection) to treat repeat breeders in two dairy herds (one in Hsinchu County and the other in Tainan County).
J H, Lin, L S, Wu, Y L, Wu, C S, Lin, N Y J, Yang   +4 more
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New Music Breeds Creators, Not Repeaters

Music Educators Journal, 1973
One of the distinguishing characteristics of our current culture is that we are a society of experts. Faced with an almost overwhelming scientific and industrial complex, we have been forced to specialize to an extreme degree in order to gain an adequate control of knowledge to maintain our technological systems.
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Incidence of Repeat Breeding in Cattle at Organized Dairy Farms

Journal of Krishi Vigyan, 2019
The present study was carried out at organized dairy farms at Jehanabad. A total of 144 cows were selected. The general and breeding history of animals, presented for gynecological checkup were recorded with respect to age of animal, number of calving, day past from last calving, nature of estrus cycle, number of insemination done without conception ...
Dinesh Mahto, Shobha Rani
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Repeatability of wing molt timing of mallards in relation to breeding

Canadian Journal of Zoology, 1990
We measured dates of first egg laid, last egg laid, last incubation and start of wing molt for 80 pairs of captive mallards (Anas platyrhynchos) from 1973 to 1975. We calculated annual repeatability of these variables within individuals as [Formula: see text], where [Formula: see text] is the among-individuals variance and s2 is the within-individuals
James O. Leafloor, Bruce D. J. Batt
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Estimation of repeatability, heritability and breed differences for lamb production.

Journal of animal science, 1983
Production records of crossbred ewes, including weight at mating (WTM), fertility (FRT), number of lambs born per ewe lambing (BRN), number of lambs weaned (WEN), litter weight in April (WTA) and litter weight at weaning (WTW), were analyzed for the estimation of breed differences, genotype x environment interactions and repeatability and heritability ...
S E, Clarke, W D, Hohenboken
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Typical repeat breeding and its improvement in buffaloes.

Beitrage zur tropischen Landwirtschaft und Veterinarmedizin, 1993
Propagation problems in buffaloes are often not easily recognizable, particularly lacking are studies on the repeat breeding syndrome. In the present study repeat breeder buffaloes were inseminated 3 or more times within the same lactation period. The incidence of typical repeat breeders was 8.33% in the lactation herd.
I F, Marai, A A, el-Darawany, A S, Nasr
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