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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 objective was to determine the bull reproductive capacity of Bos taurus (Bt), Bos indicus (Bi) and their crosses (Bt-Bi) in service in a natural mating system without sexual rest, in the central depression of the Chiapas state. Two hundred twenty two stallions were sampled. The treatments were: ...

Author(s)
Ruíz Sesma, B.; Ruiz Hernández, H.; Mendoza Nazar, P.; Oliva Llaven, M. A.; Gutiérrez Miceli, F. A.; Rojas Martínez, R. I.; Herrera Haro, J. G.; Ruíz Sesma, D. L.; Aguilar Tipacamu, G.; León Velasco, H.; Bautista Trujillo, G. U.; Ruiz Moreno, A. de J.; Ibarra Martínez, C. E.; Villalobos Encis, A.
Publisher
Universidad de Oriente Press, Maturin, Venezuela
Citation
Revista Cientifica UDO Agricola, 2010, 10, 1, pp 94-102
Abstract

Sexual development and pubertal traits were studied in Holstein Friesian (Ho) and Brown Swiss (BS) bulls born and maintained under tropical conditions. Characteristics evaluated every 2 weeks, from 27 to 63 weeks of age, included live weight, scrotal circumference, testicular diameter, semen...

Author(s)
Jiménez-Severiano, H.
Publisher
Elsevier Science Inc., New York, USA
Citation
Theriogenology, 2002, 58, 5, pp 921-932

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