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Animal Science Database

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Abstract

Effects of phytoestrogen isoflavones in Berseem clover on hormonal balance during early pregnancy and fertility of heifers were studied. Holstein heifers (n=26) were divided into two equal homogenous groups. Heifers in the first group (Clover-fed group) were fed Egyptian clover (Trifolium...

Author(s)
Hashem, N. M.; El-Azrak, K. M.; Sallam, S. M. A.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2016, 170, pp 121-127
Abstract

Optimal use of genetically superior bulls through artificial insemination (AI) is highly dependent on precise assessment of seminal quality which allows for reasonable estimations of field fertility with normal or low-dose inseminations. In the present study, seminal measures such as sperm motility ...

Author(s)
Christensen, P.; Labouriau, R.; Birck, A.; Boe-Hansen, G. B.; Pedersen, J.; Borchersen, S.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2011, 94, 4, pp 1744-1754
Abstract

A total of 304,001 artificial insemination outcomes in up to 7 lactations from 142,389 Holstein cows, daughters of 5,349 sires and 101,433 dams, calving between January 1995 and December 2007 in 1,347 herds were studied by a reaction norm model. The (co)variance components for days to first service ...

Author(s)
Menendez-Buxadera, A.; Carabaño, M. J.; Gonzalez-Recio, O.; Cue, R. I.; Ugarte, E.; Alenda, R.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2013, 96, 7, pp 4653-4665
Abstract

ALLAIRE, F. R. Probabilities arising from dairy sire evaluation models: 958-959.
ATKESON, G. W., MEADOWS, C. E., and McGILLIARD, L. D. Weighting components of type in classifying Holsteins: 977.
AULETTA, F. J., and BLACK, D. L. Effect of oxytocin and central nervous system stimulants on the bovine...

Citation
Journal of Dairy Science, 1968, 51, pp 925-990
Abstract

ABEL-AZIZ, A. S., BARR, G. R., and TYLER, W. J. Empirical analysis of models for estimating heritability: 986.
ACKERMAN, R. A., THOMAS, R. O., and BUTCHER, D. F. Effects of length of dry period on production: 976-977.
ALLAIRE, F. R. Selective value of milk yield among dairy cows: 973-974.
AEAVE, C. ...

Citation
Journal of Dairy Science, 1967, 50, pp 936-1017
Abstract

ARAVE, C. W., and LAMB, R. C. Relationship between a dairy cattle production index and genotype at the serum transferrin and four milk protein loci: 666.
ARORA, K. K., and FREEMAN, A. E. Environmental correlation between paternal half-sibs for milk and milk fat production: 655.
BATRA, T. R.,...

Citation
Journal of Dairy Science, 1970, 53, pp 631-688
Abstract

AKINS, E. L., LTJDWICK, T. M., RICKARD, H. E., RADER, E. R., and ETGEN, W. M. Association of certain type evaluations and type scores of first-lactation Holstein females: 748. ALMQTJIST, J. O., AMANN, R. P., and O'DELL, W. T. Sperm reserves of dairy bulls as determined by depletion trials and...

Citation
Journal of Dairy Science, 1958, 41, pp 701-751
Abstract

BEARDEN, H. J. The effect of some winter management practices and herd size on the 60- to 90-day nonreturns in artificial breeding: 638. BECKER, R. B., and ARNOLD, P. T. D. Tenure of dairy bulls in artificial service: 622. BIALY, G., and SMITH, V. R. Rapid rates for freezing bull semen: 622. BOYD., ...

Citation
Journal of Dairy Science, 1957, 40, pp 597-638
Abstract

ANDEBSON, W. R., and FLIPSB, R. J. Origin and fatty acid composition of the glycerides in the semen of dairy bulls: 619.
ABAVE, C. W., and LABEN, R. C. Study of genetic progress in California dairy herds: 629.
BAKEB, F. N. Vital staining before Feulgen-DNA determinations on bovine spermatozoa: 636. ...

Citation
Journal of Dairy Science, 1963, 46, pp 591-650
Abstract

ALFORD, J. A. The occurrence of penicillin and spreptomycin-resistant microorganisms in diluted bull semen: 579. ASCHBACHER, P. W., SMITH, V. R., and STONE, W. H. A study of the optimum time for insemination: 576. BECKER, R. B., and ARNOLD, P. T. D. Tenure and turnover of desirable dairy bulls in ...

Citation
Journal of Dairy Science, 1953, 36, pp 559-607

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