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Animal Science Database

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Abstract

The aim of this study was to establish the typology of cattle farms in the northern regions of Cameroon in order to reveal structural and functional characteristics that could be selected for an artificial insemination program. A survey was carried out among 54 breeders. The results showed that the ...

Author(s)
Kouamo, J.; Pa-Ana, P.
Publisher
CIRAD-EMVT (Département d'Élevage et de Médecine Vétérinaire du CIRAD), Cachan Cedex, France
Citation
Revue d'Élevage et de Médecine Vétérinaire des Pays Tropicaux, 2017, 70, 3, pp 73-80
Abstract

A female calf of the breed German Holstein (GH) was spontaneously born on July 28, 2013 which was 35 days before the expected term of birth. The dam was a heifer when she got pregnant from the first insemination on November 23, 2012. Calving was without complications. The calf was fully viable and...

Author(s)
Reinartz, S.; Höltershinken, M.; Distl, O.
Publisher
Schlütersche Verlagsgesellschaft GmbH & Co. KG, Hannover, Germany
Citation
Berliner und Münchener Tierärztliche Wochenschrift, 2016, 129, 1/2, pp 82-87
Abstract

The objectives were to evaluate the effects of feeding diets with 2 levels of negative dietary cation-anion differences (DCAD) during the last 42 or 21 d of gestation on performance and metabolism in dairy cows. The hypothesis was that extending feeding from 21 to 42 d and reducing the DCAD from...

Author(s)
Lopera, C.; Zimpel, R.; Vieira Neto, A.; Lopes, F. R.; Ortiz, W.; Poindexter, M.; Faria, B. N.; Gambarini, M. L.; Block, E.; Nelson, C. D.; Santos, J. E. P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 9, pp 7907-7929
Abstract

We investigated the effect of maternal sire on early pregnancy failure (between D0, day of insemination and D90) in their progeny during the first and second lactations (n=3508) in the Holstein breed. The estimated breeding value (EBV) for cow fertility of 12 bulls (reliability ≥0.95) was used to...

Author(s)
Ledoux, D.; Ponsart, C.; Grimard, B.; Gatien, J.; Deloche, M. C.; Fritz, S.; Lefebvre, R.; Humblot, P.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2015, 9, 5, pp 766-774
Abstract

Anogenital distance (AGD) serves as a marker for prenatal androgenization, reproductive development, and fertility in humans and rodents. The primary objectives of this observational study in lactating dairy cows were to (1) characterize the distribution and variability of AGD, (2) determine the...

Author(s)
Gobikrushanth, M.; Bruinjé, T. C.; Colazo, M. G.; Butler, S. T.; Ambrose, D. J.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 12, pp 9815-9823
Abstract

Holsteins are the most numerous dairy cattle breed in North America and the breed has undergone intensive selection for improving milk production and conformation. Theoretically, this intensive selection could lead to a reduction of the effective population size and reduced genetic diversity. The...

Author(s)
Yue, X. P.; Dechow, C.; Liu, W. S.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2015, 98, 4, pp 2738-2745
Abstract

These proceedings present 46 papers from the 5th International Scientific Conference, College of Veterinary Medicine, held at the University of Basrah, Iraq last 2-3 November 2016. Topics of papers focused on the breeding and genetics, health, nutrition and nutrional disorders, and the diagnosis,...

Publisher
University of Basrah, Basrah, Iraq
Citation
Basrah Journal of Veterinary Research, 2016, 15, 3, pp 1-551
Abstract

The objective of this study was to identify genetic markers and genomic regions associated with susceptibility to Mycobacterium avium ssp. paratuberculosis (MAP) infection in Holstein cattle. Associated single nucleotide polymorphisms (SNPs) were identified by genotyping 521 MAP-infected Holstein...

Author(s)
Kirkpatrick, B. W.; Shi, X.; Shook, G. E.; Collins, M. T.
Publisher
Wiley-Blackwell, Oxford, UK
Citation
Animal Genetics, 2011, 42, 2, pp 149-160
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

Data were USDA genetic evaluations of cows and DHI herd profiles from 4154 Holstein progeny-test herds from 2 artificial insemination organizations, 21st Century Genetics (Shawano, WI) and Genex (Ithaca, NY), and from 6361 additional herds from Minnesota and New York. We grouped herds into 4...

Author(s)
Vierhout, C. N.; Cassell, B. G.; Pearson, R. E.
Citation
Journal of Dairy Science, 1999, 82, 4, pp 822-828

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