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Animal Science Database

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Abstract

This experiment evaluated the reproductive performance, herd exit dynamics, and lactation performance of dairy cows managed with a voluntary waiting period (VWP) of 60 or 88 d. Secondary objectives were evaluating VWP effect on cyclicity status, uterine health, systemic inflammation, and body...

Author(s)
Stangaferro, M. L.; Wijma, R.; Masello, M.; Thomas, M. J.; Giordano, J. O.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 1, pp 717-735
Abstract

The objectives of the current study were to evaluate the effects of supplemental progesterone after artificial insemination (AI) on expression of IFN-stimulated genes (ISG) in blood leukocytes and fertility in lactating dairy cows. Weekly cohorts of Holstein cows were blocked by parity (575...

Author(s)
Monteiro, P. L. J., Jr.; Ribeiro, E. S.; Maciel, R. P.; Dias, A. L. G.; Solé, E., Jr.; Lima, F. S.; Bisinotto, R. S.; Thatcher, W. W.; Sartori, R.; Santos, J. E. P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2014, 97, 8, pp 4907-4921
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

Detection of estrus in dairy cattle is effectively aided by electronic activity tags or pedometers. Characterization of estrus intensity and duration is also possible from activity data. This study aimed to develop an algorithm to detect and characterize behavioral estrus from hourly recorded...

Author(s)
Løvendahl, P.; Chagunda, M. G. G.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2010, 93, 1, pp 249-259
Abstract

AHLSCHWEDE, W. T., and ROBISON, O. W. Influence of climatic conditions on litter size in swine: 916.
ALGEO, J. W., and GASSNER, F. X. Effect of poly-diethylstilbestrol phosphate (PSP) injected sub-cutaneously on the growth of beef cattle. I. Suckling and weanling calves: 896.
ALGEO, J. W., and...

Citation
Journal of Animal Science, 1966, 25, pp 877-933
Abstract

Dairy Cattle: induction of lactation by diethylstilboestrol; effect of vitamin A deficiency on sexual function of bull; inbreeding Holsteins discontinued after 30 yrs. since effects were uniformly deleterious; proved-sire system of breeding has improved production of Holstein and Jersey herds by...

Publisher
Washington, D.C. : U.S. Govt. Printing Office.,
Citation
Department of Agriculture. Report of the Chief of the Bureau of Dairy Industry, Agricultural Research Administration, 1943., 1944, pp 24 pp.
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

ACKERMAN, R. A., and HYATT, G. (Jr. ). Prepartum II. Some effects on production of cows and growth of calves: 503. ALBRECTSEN, R. Production results of three generations of artificial breeding and of the use of analysed sires: 513-514. ALMQUIST, J. O., and THACKER, D. L. The fertility of bovine...

Citation
Journal of Dairy Science, 1951, 34, pp 475-514
Abstract

BIALY, G., and HESS, E. A. The influence of added lipoprotein on the freezing of bovine spermatozoa: 623. BRAKEL, W. J. An evaluation of the American Jersey Cattle Club star bull program: 617. BRANTON, C., GRIFFITH, W. S., PATRICK, T. E., JOHNSTON, J. E., and D'ARENSBOURG, G. F. Seasonal trends in...

Citation
Journal of Dairy Science, 1955, 38, pp 587-628

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