Influence of season, age, breed and some other factors on the variation in sperm morphological abnormalities in Swedish dairy A.I. bulls

Animal Reproduction Science

Volumn 44, Issue 2, 1996, Pages 91-98

  Soderquist L ^a   Janson, L ^a,c   Haard M ^b   Einarsson, S ^a  

^a SWEDISH UNIVERSITY OF AGRICULTURAL SCIENCES   (Sweden)

^b Svensk Avel   (Sweden)

^c Pharmacia & Upjohn AB   (Sweden)

Author keywords

Cattle male reproduction; Dehorning; Dihydrostreptomycin; Semen characteristics; Spermatozoa abnormalities

Indexed keywords

BOS TAURUS;

EID: 0030248014     PISSN: 03784320     EISSN: None     Source Type: Journal    
DOI: 10.1016/0378-4320(96)01498-4     Document Type: Article

References (11)

1. Bane, A., 1961. Acrosomal abnormality associated with sterility in boar. IVth Int. Congr. Animal Reproduction and Artificial Insemination, The Hague, Vol. 4, pp. 810-817
2. Hancock, J.L., 1957. The morphology of boar spermatozoa. J. R. Microsc. Soc., 76: 84-97.
3. Hultnäs, C.A., 1959. Studies on the variation in mating behaviour and semen picture in young bulls of Swedish Red and White breed and on causes of this variation (Thesis). Acta. Agric. Scand. Suppl., 6: 32-34.
4. Lagerlöf, N., 1934. Morphologische Untersuchungen über Veränderungen im Spermabild und in den Hoden bei Bullen mit verminderten oder aufgehobener Fertilität (Thesis). Acta Pathol. Microbiol. Scand., Suppl., 19: 235-239.
5. Linford, E., Glover, F.A., Bishop, C. and Stewart, D.L., 1976. The relationship between semen evaluation methods and fertility in the bull. J. Reprod. Fertil., 47: 283-291.
6. Pearson, R.E., Ernst, C.A., Saacke, R.G., Bame, J.H., 1984. Heritability and repeatability, preliminary estimates of bulls entering progeny test programs. Proc. 10th Tech. Conf. on AI and Reproduction, Milwaukee, WI, N.A.A.B., Columbia, MI, pp. 41-44.
7. Rao, A.R., 1971. Changes in the morphology of sperm during their passage through the genital tract in dairy bulls with normal and impaired spermatogenesis. Thesis, Royal Veterinary College, Stockholm.
8. SAS Institute Inc., 1985. SAS User's Guide Statistics, Version 5. SAS Institute Inc., Cary, NC.
9. Sekoni, V.O. and Gustafsson, B.K., 1987. Seasonal variations in the incidence of sperm morphological abnormalities in dairy bulls regularly used for artificial insemination. Br. Vet. J., 143: 312-317.
10. Söderquist, L., Janson, L., Larsson, K. and Einarsson, S., 1991. Sperm morphology and fertility in A.I. bulls. J. Vet. Med., A38: 534-543.
11. Williams, W.W., 1920. Technique of collecting semen for laboratory examination with a review of several diseased bulls. Cornell Vet., 10: 87-94.