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Animal Science Database

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Abstract

Currently almost all dairy cattle are dehorned as calf to avoid injuries later in life. A welfare friendly alternative to dehorning is to breed polled cattle. This paper explores the potential to breed for polledness in the Holstein breed, and investigates the genetic merit and relatedness of both...

Author(s)
Windig, J. J.; Hoving-Bolink, R. A.; Veerkamp, R. F.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Livestock Science, 2015, 179, pp 96-101
Abstract

The aim of this study was to examine the effect of sex-sorted semen on the number and quality of embryos recovered from superovulated heifers and cows on commercial dairy farm conditions in Finland. The data consist of 1487 commercial embryo collections performed on 633 and 854 animals of Holstein...

Author(s)
Kaimio, I.; Mikkola, M.; Lindeberg, H.; Heikkinen, J.; Hasler, J. F.; Taponen, J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2013, 80, 8, pp 950-954
Abstract

The follicle-stimulating hormone (FSH) acts on the sertoli cells in the seminiferous tubules of the testis and regulates spermatogenesis up to the secondary spermatocyte stage. Allelic and genotypic frequencies of bovine follicular stimulating hormone (exon III) gene were studied for 83 animals...

Author(s)
Ghasemi, M. V.; Ghorbani, A.; Beheshti, R.
Publisher
Scholars Research Library, India
Citation
Annals of Biological Research, 2012, 3, 4, pp 1783-1785
Abstract

Future progress in genetic improvement and the monitoring of genetic resources in beef cattle requires a detailed understanding of the population under selection. This study examines the gene flow in the UK beef population with an uncommon breeding structure involving interaction between the beef...

Author(s)
Todd, D. L.; Woolliams, J. A.; Roughsedge, T.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2011, 5, 12, pp 1874-1886
Abstract

This study investigates the distribution of milk, fat and protein production, and somatic cell scores of Holstein and Jersey dairy bulls provided by semen companies in Brazil. Data from the animals were located in the websites of these companies, and their proofs were found in the American April...

Author(s)
Zabot, V.; Soares, M. P.; Gaya, L. de G.; Lorentz, L. H.; Domenico, Q. di; Pértile, S. F. N.
Publisher
Universidade Federal de Goiás, Escola de Veterinária, Goiânia, Brazil
Citation
Ciência Animal Brasileira, 2009, 10, Supplement 1, pp 853-858
Abstract

Previous studies have shown that the use of beef bull semen significantly reduces the rate of abortions due to Neospora caninum in artificially inseminated (AI) seropositive dairy cows. In addition, certain beef breeds could be more resistant to N. caninum infection and abortion than others. The...

Author(s)
Almería, S.; López-Gatius, F.; García-Ispierto, I.; Nogareda, C.; Bech-Sàbat, G.; Serrano, B.; Santolaria, P.; Yániz, J. L.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2009, 163, 4, pp 323-329
Abstract

This study investigates the distribution of linear traits, rear udder height, udder width, udder depth, udder cleft, and fore udder attachment of Holstein and Jersey dairy bulls provided by semen companies in Brazil. Registers of 392 Holstein and 92 Jersey bulls were found in the websites of these...

Author(s)
Rovadoscki, G. A.; Soares, M. P.; Gaya, L. de G.; Lorentz, L. H.; Zabot, V.; Batistel, F.
Publisher
Universidade Federal de Goiás, Escola de Veterinária, Goiânia, Brazil
Citation
Ciência Animal Brasileira, 2009, 10, Supplement 1, pp 836-841
Abstract

This study investigates the scoring distribution of foot and leg linear type traits, rear legs (side and rear view), and foot angle of Holstein and Jersey dairy bulls provided by semen companies in Brazil. Registers of 392 Holstein and 92 Jersey bulls were found in the websites of these companies,...

Author(s)
Rovadoscki, G. A.; Soares, M. P.; Gaya, L. de G.; Lorentz, L. H.; Batistel, F.; Pértile, S. F. N.
Publisher
Universidade Federal de Goiás, Escola de Veterinária, Goiânia, Brazil
Citation
Ciência Animal Brasileira, 2009, 10, Supplement 1, pp 830-835

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