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Abstract

THE first artificial breeding unit of the New Jersey Holstein-Friesian Cooperative Association was started in 1938, and since that time cooperative artificial insemination has been adopted by 12 other states. The authors carried out field experiments in order to adjust certain inadequacies of the...

Author(s)
HAMILTON, J. G.; SYMINGTON, E. L.
Citation
Canadian Journal of Comparative Medicine, 1939, 3, pp 337-340
Abstract

ARNOLD, F. Utilization of proved sires and sons of proved sires: 578-579. At present only about 1 sire out of 8 is alive when proved and worthy of further use. There is little chance of increasing the use of proved sires except through their sons, or through programmes designed to prove bulls at an ...

Citation
Journal of Dairy Science, 1940, 23, pp 473-586
Abstract

Cattle: Advanced Registry and D.H.I.A. tests; local artificial insemination associations combined in one co-operative association with 20 Holstein and 10 Guernsey bulls giving semen for over 14, 000 cows; dairy herd replacements; physiology of lactation; hormones and sterility; sperm storage, semen ...

Publisher
New York: Cornell University.,
Citation
Fifty-fourth Annual Report of the New York State College of Agriculture and of the Cornell University Agricultural Experiment Station for the year 1940-41. C. E. Ladd., 1942, pp 202 pp.
Abstract

SEMEN samples from 2 Holstein bulls (King and Pathfinder), each with a fresh sperm motility count of 90, were divided into 2 portions, 1 portion being diluted 1: 4 (King) or 1: 3 (Pathfinder) with University of Illinois chick embryo dilutor and the other with 1: 4 phosphate egg yolk buffer. The...

Author(s)
LICHTY, D. L.
Citation
Journal of the American Veterinary Medical Association, 1943, 103, pp 99-101
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

The place of artificial insemination in the German breeding policy is discussed [see also GÖTZE- V.B. 13. 105]. Since 1942 the method has Been given trial under practical conditions at centres in N.W. Germany. The work at these centres is described in detail and, in the case of horses and goats,...

Author(s)
GOTZE, R.; ROSENBERGER, G.
Citation
Deutsche Tierarztliche Wochenschrift, 1944, 52, pp 117-121
Abstract

This is a report on the artificial insemination of milk cows and goats in Cheng-tu, carried out by the Agricultural Research Institute, West China Union University. Artificial insemination was urgently needed on account of the lack of good male animals, particularly pedigree bulls, and the...

Author(s)
ANON.
Publisher
West China : Institute of Agricultural Research, Union University.,
Citation
Artificial insemination of domestic animals., 1945, pp 16 pp.
Abstract

V. DIVISION OF ANIMAL PATHOLOGY. The work of the division was concentrated on problems connected with food-producing animals. Some success was obtained with penicillin in treating cases of BOVINE MASTITIS. Sulpha compounds proved useless in the. treatment of SWINE ERYSIPELAS. No satisfactory result ...

Author(s)
GARDINER, J. G.
Publisher
Ottawa: E. Cloutier.,
Citation
Report of the Minister of Agriculture for the Dominion of Canada for the year ended March 31,1945., 1945, pp 212
Abstract

Five Holstein-Friesian and five Guernsey bulls were used routinely for one year in artificial insemination. Eight different semen characteristics were studied for most ejaculates. The variation among the bulls in these semen characteristics was marked. Also, important month-to-month differences...

Author(s)
MERCIER, E.; SALISBURY, G. W.
Citation
Cornell Veterinarian, 1946, 36, pp 301-311
Abstract

A yearly study of the semen characteristics of 10 bulls (5 Holstein and 5 Guernsey) used for artificial insemination in New York State revealed a highly significant breed difference only in respect to fertility.
Highly significant individual differences occurred for frequency of collection, volume, ...

Author(s)
MERCIER, E.
Citation
Journal of Dairy Science, 1946, 29, pp 556

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