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Abstract

Reproductive biotechnologies are used for the conservation, expansion and genetic improvement of cattle, and to facilitate the creation of germplasm banks of elite animals and endangered breeds. The objective of this study was to compare the effects of two different doses of follicle stimulating...

Author(s)
Rosales-Martínez, F.; Rosendo-Ponce, A.; Canseco-Sedano, R.; Cortez-Romero, C.; Torres-Hernández, G.; Becerril-Pérez, C. M.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2018, 28, 2, pp 146-152
Abstract

In order to estimate the genetic parameters and correlations between total lactation milk yield and growth traits in a multiracial population of dual purpose cattle in tropical environments of Mexico, genetic variances and covariances were estimated between total milk yield during the first (PTL1...

Author(s)
Román-Ponce, S. I.; Ruiz-López, F. J.; Romano-Muñoz, J. L.; Vásquez-Peláez, C. G.; Vega-Murillo, V. E.; Román-Ponce, H.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2018, 9, 2, pp 316-327
Abstract

Genealogical information is an essential tool for carrying out any genetic improvement program. The objective of this study was to determine the accuracy of pedigree information in the Mexican registered Holstein population using genomic data available in Mexico and for the US Holstein population....

Author(s)
García-Ruiz, A.; Wiggans, G. R.; Ruiz-López, F. J.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 2, pp 1806-1810
Abstract

Variance components and genetic parameters were estimated for total milk production at first lactation (MP1), milk yield adjusted to 305 d and adult equivalent at the first lactation (MP1std), total milk production of the first five lactations (MP5) and milk yield adjusted to 305 d and mature...

Author(s)
Toledo Alvarado, H. O.; Ruiz López, F. de J.; Vásquez Peláez, C. G.; Berruecos Villalobos, J. M.; Elzo, M. A.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2014, 5, 4, pp 443-457
Abstract

An epidemiological study of risk factors for fetal losses was carried out on 62,403 high-yielding Holstein cows in 29 large highly technified dairy herds in northern Mexico (25°N; 23.5°C mean annual temperature). Multivariate multiple-group response model indicated that fetal losses between 43 and...

Author(s)
Mellado, M.; López, R.; Santiago, Á. de; Veliz, F. G.; Macías-Cruz, U.; Avendaño-Reyes, L.; García, J. E.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2016, 48, 6, pp 1247-1252
Abstract

In pasture-based dairy systems, there is a close relationship between milk production and dry matter intake (DMI), hence the importance of measuring these variables, although obtaining this information implies high labour and costs. The objective of this study was to design a mathematical model to...

Author(s)
Sánchez-Pérez, R.; Mariezcurrena, M. D.; Elghandour, M. M. M. Y.; Mellado, M.; Camacho-Diaz, L. M.; Cipriano-Salazar, M.; Salem, A. Z. M.
Publisher
Indian Council of Agricultural Research, New Delhi, India
Citation
Indian Journal of Animal Sciences, 2018, 88, 5, pp 598-601
Abstract

The association of single nucleotide polymorphisms (SNPs) within genes of the prolactin (PRL), growth hormone (GH) and insulin-like growth factor-I (IGF1) pathways with 305-day milk yield (MY305) were evaluated in heat-stressed Holstein cows. Ambient temperature and relative humidity were used to...

Author(s)
Hernández-Cordero, A. I.; Sánchez-Castro, M. A.; Algandar, R. Z.; Luna-Nevárez, P.; Rincón, G.; Medrano, J. F.; Speidel, S. E.; Enns, R. M.; Thomas, M. G.
Publisher
FUNPEC, Brazil
Citation
Genetics and Molecular Research, 2017, 16, 4, pp 16039821
Abstract

Present study was undertaken to evaluate forage options for dairy cows in small-scale dairy systems under lower availability of water for irrigation, using maize silage as sole forage or grazed cultivated pasture plus maize silage. Two groups of 5 Holstein cows balanced in live-weight, parity and...

Author(s)
Jaimez-García, A. S.; Heredia-Nava, D.; Estrada-Flores, J. G.; Vicente, F.; Martínez-Fernández, A.; López-González, F.; Arriaga-Jordán, C. M.
Publisher
Indian Council of Agricultural Research, New Delhi, India
Citation
Indian Journal of Animal Sciences, 2017, 87, 6, pp 752-756
Abstract

Soybean oil is rich in linoleic acid, and - in addition to the contribution of major linolenic acid in fodder - can improve the production of unsaturated fatty acids (AG) in the milk of grazing cows. The objective of this study was to evaluate the effect of adding soybean oil (0, 3 and 6% BS) in...

Author(s)
Vieyra-Alberto, R.; Arriaga-Jordán, C. M.; Domínguez-Vara, I. A.; Bórquez-Gastelum, J. L.; Morales-Almaráz, E.
Publisher
Colegio de Postgraduados, Montecillo, Mexico
Citation
Agrociencia (Montecillo), 2017, 51, 3, pp 299-313
Abstract

Records of milk production adjusted to 305 d, adult equivalent of the first lactation and two milking were used. Those come from the National Breeding in Mexico PNMG (n=163.885), which includes records of the Holstein Association of Mexico (AHM) (n=43.668) and National Bank of Dairy Information...

Author(s)
Toledo Alvarado, H. O.; Ruiz López, F. de J.; Vázquez Peláez, C. G.; Berruecos Villalobos, J. M.; Elzo, M. A.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2014, 5, 4, pp 471-485

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