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Animal Science Database

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Abstract

Accurate predictive modelling facilitates efficient and effective trait selection in animal breeding and can decrease costs while maximizing profits when raising economically important animals. The objective of this study was to extend a previously developed bioeconomic model and computer program...

Author(s)
Krupa, E.; Wolfová, M.; Krupová, Z.; Žáková, E.
Publisher
Wiley, Berlin, Germany
Citation
Journal of Animal Breeding and Genetics, 2020, 137, 2, pp 189-199
Abstract

Efforts to understand biological functions and develop management schemes specific to Bos indicus-influenced cattle raised in tropical and subtropical environments are critical to meet the increasing global demand for protein. In the United States, B. indicus breeds are mostly used to generate B....

Author(s)
Cooke, R. F.; Cardoso, R. C.; Cerri, R. L. A.; Lamb, G. C.; Pohler, K. G.; Riley, D. G.; Vasconcelos, J. L. M.
Publisher
Oxford University Press, Cary, USA
Citation
Journal of Animal Science, 2020, 98, 2,
Abstract

The objective of this study was to compare the fertility of Holstein heifers under cooling and inseminated with sexed semen during the summer versus winter season. Eighty heifers were divided into two groups: (1) summer group (n=40), consisted of heifers under visual heat detection and inseminated...

Author(s)
Correa-Calderón, A.; Angulo-Valenzuela, I.; Betancourth, F.; Oroz-Rojo, F.; Fierros-Castro, K.; Macías-Cruz, U.; Díaz-Molina, R.; Avendaño-Reyes, L.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Tropical Animal Health and Production, 2020, 52, 1, pp 203-209
Abstract

Current artificial insemination (AI) laboratory practices assess semen quality of each boar ejaculate to decide which ones to process into AI doses. This decision is aided with two, world-wide used, motility parameters that come available through computer assisted semen analysis (CASA). This...

Author(s)
Kamphuis, C.; Duenk, P.; Veerkamp, R. F.; Visser, B.; Singh, G.; Nigsch, A.; Mol, R. M. de; Broekhuijse, M. L. W. J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2020, 144, pp 112-121
Abstract

The main objective of this study was to examine the combined effect of mastitis and parity on pregnancy loss (PL) in lactating Holstein cows. A secondary objective was to estimate the cost of mastitis including that of PL attributable to mastitis. A total of 1,774 lactation periods from 1,047...

Author(s)
Dahl, M. O.; Vries, A. de; Galvão, K. N.; Maunsell, F. P.; Risco, C. A.; Hernandez, J. A.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2020, 143, pp 57-63
Abstract

Nellore is the main cattle breed used in Brazil, being the largest commercial herd in the world. Beyond the importance of male reproductive efficiency for farm profit, the use of reproductive techniques, mainly artificial insemination, turns the evaluation of male reproductive traits even more...

Author(s)
Carvalho Filho, I.; Marques, D. B. D.; Campos, C. F. de; Guimarães, J. D.; Guimarães, S. E. F.; Lopes, P. S.; Fonseca e Silva, F.; Veroneze, R.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2020, 55, 1, pp 38-43
Abstract

The objective was to evaluate the reproductive performance of frozen sex-sorted sperm at 4×106 sperm per dose (SexedULTRA 4 M, Sexing Technologies, Navasota, TX) relative to frozen conventional sperm in seasonal-calving pasture-based dairy cows. Semen from Holstein-Friesian (n=8) and Jersey (n=2)...

Author(s)
Maicas, C.; Holden, S. A.; Drake, E.; Cromie, A. R.; Lonergan, P.; Butler, S. T.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 1, pp 929-939
Abstract

The objective of this study was to investigate whether health, survival, and performance of dairy heifers from birth through first lactation are associated with parity and health status of their dams. Holstein heifers (n=1,811) derived from artificial insemination were categorized as (1) daughters...

Author(s)
Carvalho, M. R.; Aboujaoude, C.; Peñagaricano, F.; Santos, J. E. P.; Devries, T. J.; McBride, B. W.; Ribeiro, E. S.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 1, pp 823-839
Abstract

The aim of this study was to estimate genetic parameters and genetic trends for male fertility in Norwegian Red bulls. We analyzed data on semen characteristics traits collected at the performance test station of young bulls from 1994 to 2016, in an andrology test used to ensure acceptable semen...

Author(s)
Olsen, H. B.; Heringstad, B.; Klemetsdal, G.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 1, pp 545-555
Abstract

The objective of this study was to determine the effects of prepartum negative dietary cation-anion difference diet (DCAD) fed at two dietary Ca inclusion rates on postpartum uterine health and ovulation dynamics of multiparous Holstein cows (n=76). Treatments began at 28 days before expected...

Author(s)
Ryan, K. T.; Guadagnin, A. R.; Glosson, K. M.; Bascom, S. S.; Rowson, A. D.; Steelman, A. J.; Cardoso, F. C.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2020, 142, pp 338-347

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