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Abstract

The objective of this study was to clarify the effects of a second protocol of ovulation synchronisation starting on day 26 after timed artificial insemination on ovarian profile and days open in dairy cows diagnosed as nonpregnant. Ninety-four Holstein-Friesian cows received intramuscular...

Author(s)
Osawa, T.; Honjou, S.; Nitta, H.; Uchiza, M.; Tameoka, N.; Moro, Y.; Izaike, Y.
Publisher
Society for Reproduction and Development (, Tokyo, Japan
Citation
Journal of Reproduction and Development, 2009, 55, 2, pp 163-169
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

In order to evaluate artificial cooling and timed artificial insemination (TAI) protocol on fertility during summer months, 90 Holstein heifers were randomly and equally assigned to three treatments: (a) control group (S) with visual heat detection and insemination a.m-p.m after heat detection; (b) ...

Author(s)
Correa-Calderón, A.; Leyva, C.; Avendaño, L.; Rivera, F.; Diaz, R.; Alvarez, F. D.; Ardon, F.; Rodriguez, F.
Publisher
Garuda Scientific Publications, Izatnagar, India
Citation
Journal of Applied Animal Research, 2009, 35, 2, pp 109-112
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
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

An experiment was performed on 128 heifers (79 Holstein and 49 Normande heifers) born during four successive winters (1989-1992) and aimed at studying the effect of limiting average daily live weight gain (ADG) during two successive winters on performance and longevity when heifers first calved at...

Author(s)
Cozler, Y. le; Peccatte, J. R.; Delaby, L.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Livestock Science, 2010, 127, 1, pp 238-247
Abstract

The objectives were to determine the effect of ovsynch plus postbreeding infusion treatment combined with fixed time AI on pregnancy rate in healthy Holstein cows. A total of 36 cows ageing between three and eight were used. Cows were randomly assigned to one of three treatment groups. Cows (n=12)...

Author(s)
Yİldİz, A.
Publisher
Medwell Online, Faisalabad, Pakistan
Citation
Journal of Animal and Veterinary Advances, 2010, 9, 9, pp 1345-1350
Abstract

An experiment was performed on 128 heifers (79 Holstein and 49 Normande heifers) born during four successive winters (1989-1992) and aimed at studying the effect of limiting average daily live weight gain (ADG) during two successive winters on performance and longevity when heifers first calved at...

Author(s)
Cozler, Y. le; Peccatte, J. R.; Delaby, L.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Livestock Science, 2010, 127, 2/3, pp 238-247
Abstract

Manipulation of the reproductive tract can cause inflammatory processes in the endometrium and release of cytokines and prostaglandins. It has been shown that PGF has direct negative effects on embryonic survival and development. Treatment with nonsteroidal antiinflammatory drugs (e.g., ibuprofen ...

Author(s)
Heuwieser, W.; Iwersen, M.; Goetze, L.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2011, 94, 1, pp 146-151

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