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Animal Science Database

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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

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 objective of this study was to determine the association of beta-carotene concentration in plasma at the moment of artificial insemination (AI) on pregnancy/AI in lactating Holstein cows. A total of 399 events from 364 lactating Holstein cows were enrolled in the trial (143 primiparous and 221...

Author(s)
Madureira, A. M. L.; Pohler, K. G.; Guida, T. G.; Wagner, S. E.; Cerri, R. L. A.; Vasconcelos, J. L. M.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2020, 142, pp 216-221
Abstract

The aim of this research was to evaluate the effect of recombinant bovine somatotropin (bST) on pregnancy per artificial insemination (P/AI), cellular composition of the corpus luteum (CL) and endometrial gland morphometry. In Experiment 1, Nelore cows (n=587) received a fixed-time artificial ...

Author(s)
Costa, N. P.; Gonella-Diaza, A.; Pugliesi, G.; Maldonado, M. B. C.; Scollari, S. C.; Mello, B. P.; Feltrin, I.; Girotto, R.; Castilho, C.; Membrive, C. M. B.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2020, 141, pp 180-185
Abstract

We hypothesized that a shortened version of a modified Ovsynch program (OVS: GnRH-1 -7 d-PGF-1 -24 h-PGF-2 -32 h-GnRH-2 -16 h-AI) that excluded GnRH-1 to resynchronize ovulation in cows bearing a corpus luteum (CL) after a non-pregnancy diagnosis (NPD) or including progesterone supplementation...

Author(s)
Sauls-Hiesterman, J. A.; Voelz, B. E.; Stevenson, J. S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2020, 141, pp 105-112
AbstractFull Text

Objective: To evaluate the technique of artificial insemination by laparoscopy (AIL) under field conditions on the reproductive variables in ewes and their social impacts with sheep farmers from the region of Valle del Mezquital, Hidalgo. Design/methodology/approach: The experimental design was...

Author(s)
Nieto-Aquino, R.; Hernández-Rodríguez, D.; Hernández-Rodríguez, B.; Rodríguez-Ortega, L. T.; Campero-Cruz, A.; Noriega-Trinidad, V.; Vargas-Monter, J.; Hernández-Rubio, D. J.; Hernández-León, G.; Rodríguez-Ortega, A.
Publisher
Colegio de Postgraduados, Texcoco, Mexico
Citation
Agroproductividad, 2019, 12, 2, pp 21-26

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