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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

Crossbreeding effects were evaluated in three dual purpose bovine sub-populations in the tropics, and 5,040 lactations, 4,429 birth weights and adjusted weights at 205 [3,878], 365 [3,017] and 540 [2,276] days (PN, P205, P365 y P540, respectively) from Zebu cattle (CE) and its crosses with Holstein ...

Author(s)
Román-Ponce, S. I.; Ruiz-López, F. de J.; Montaldo, H. H.; Rizzi, R.; Román-Ponce, H.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2013, 4, 4, pp 405-416
Abstract

The effect of six genotypes (Zebu=Z, European Brown Swiss=EBS, Holstein=H, Z × EBS, Zebu × American Brown Swiss=ABS, Z × ABS, Z × H) on carcass and meat characteristics of young bullocks finished under feedlot conditions was tested. The Z × ABS bullocks had the highest (P=0.001) average daily gain. ...

Author(s)
Vazquez-Mendoza, O. V.; Aranda-Osorio, G.; Huerta-Bravo, M.; Kholif, A. E.; Elghandour, M. M. Y.; Salem, A. Z. M.; Maldonado-Simán, E.
Publisher
CSIRO, Collingwood, Australia
Citation
Animal Production Science, 2017, 57, 6, pp 1186-1192
Abstract

Records of beef cows from a ranch in southern Mexico gave 1967 birth weights (BW), 1587 weaning weights adjusted to 210 days of age (AWW) and 2001 calving intervals (CI) for the comparison of the breed groups: Brahman (BR), Guzerat (GU), Nellore (NE) and crosses born to zebu dams by Brown Swiss...

Author(s)
Segura-Correa, J. C.; Magaña-Monforte, J. G.; Aké-López, J. R.; Segura-Correa, V. M.; Hinojosa-Cuellar, J. A.; Osorio-Arce, M. M.
Publisher
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Yucatan, Yucatan, Mexico
Citation
Tropical and Subtropical Agroecosystems, 2017, 20, 2, pp 297-305
Abstract

Records of 1,289 cows at first calving with different proportions of Bos indicus and Bos taurus genes (Charolais, Brown Swiss, Simmental, Holstein Friesian, Salers) were analyzed. The cows were both purebreds and crossbreds from a commercial herd born between 1966 and 2006. They were used to...

Author(s)
Toledo Alvarado, H. O.; Berruecos Villalobos, J. M.; Vázquez Peláez, C. G.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2015, 6, 1, pp 1-13
Abstract

Crossbred dairy cows differ in productive and reproductive traits compared to purebred Holsteins. The objectives of this study were to breed Holstein, Jersey, Montbeliarde and Swedish Red using a breed rotational crossbreeding system and evaluate some productive and reproductive performance....

Author(s)
Lammoglia Villagómez, M. Á.; Ávila García, J.; Alarcón Zapata, M. A.; Cabrera Núñez, A.; Gutiérrez Rodríguez, A.; Rentería, I. D.
Publisher
Facultad de Medicina Veterinaria y Zootecnia, Coyoacan, Mexico
Citation
Veterinaria México, 2013, 44, 1, pp 17-22
Abstract

Breeding records, including 649 inseminations during fall and winter at a dairy farm in a subtropical area of Western Mexico (24°N; 24°C, mean annual temperature 24°C) were analyzed to document effects of sex-sorted semen from commercial Gyr bulls, estrus synchronization protocol, inseminator, sire ...

Author(s)
Mellado, M.; Coronel, F.; Estrada, A.; Ríos, F. G.
Publisher
Springer, Amsterdam, The Netherlands
Citation
Tropical Animal Health and Production, 2010, 42, 7, pp 1493-1496
Abstract

The effect of age at first calving (AFC) and breed type (BG) on cow length of productive life in the herd (LPL) and cumulative kilograms of calves weaned per cow (KWC) was studied. Data on 313 Brahman, 183 Nellore, and 269 crossbred cows (undefined crosses of European × Zebu cattle) born from 1986...

Author(s)
Aranda-Avila, I.; Magaña-Monforte, J. G.; Segura-Correa, J. C.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2010, 42, 8, pp 1737-1741
AbstractFull Text

Due to a reduced contribution of the livestock producers from the XIVth Tulijá-Tseltal-Chol Region to the overall livestock activity in Chiapas, a study was carried out in order to recognize the bovine cattle breed types that conform the structural arrangement of cattle herds linked to a...

Author(s)
Velázquez Avendaño, J.; Perezgrovas Garza, R.
Publisher
Instituto de Zootecnia, Facultad de Veterinaria, Córdoba, Spain
Citation
Archivos de Zootecnia, 2016, 65, 249, pp 35-42
Abstract

This study was carried out in the municipality of Villaflores, Chiapas, Mexico, to determine genotypic and allelic frequencies of the leptin gene in exon 2 in dual purpose cattle. The polymorphism was observed by ARMS-PCR. 47 sires in active service in the production system were included in this...

Author(s)
Ruíz Sesma, B.; Herrera Haro, J. G.; Rojas Martinez, R. I.; Ruiz Hernández, H.; Mendoza Nazar, P.; Oliva Llaven, M. A.; Gutiérrez Miceli, F. A.; Aguilar Tipacamu, G.; Bautista Trujillo, G. U.; Ibarra Martínez, C. E.
Publisher
Veterinaria Organizacion S.L., Malaga, Spain
Citation
REDVET, 2009, 10, 12, pp 120901

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