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AbstractFull Text

Holstein calves (n=767) from a commercial herd were used to determine the effect of birth weight (BW), weaning weight (WW) and preweaning average daily gain (ADG) on subsequent reproductive performance of heifers inseminated with sex-sorted semen in a hot environment (25°N; mean annual temperature...

Author(s)
López, E.; Véliz, F. G.; Carrillo, E.; Santiago, Á. de; García, J. E.; Mellado, M.
Publisher
Veterinarska Fakulteta, Univerza v Ljubljani, Ljubljana, Slovenia
Citation
Slovenian Veterinary Research, 2018, 55, 1, pp 35-42
Abstract

A new device (Chapingo device) to deposit semen at the base of the uterine horns of cattle was developed at Universidad Autonoma Chapingo, Mexico. Nine Holstein heifers were inseminated by transvaginal laparoscopy, using a laparoscope for cattle and the Chapingo device. A dose of sexed semen...

Author(s)
García-Peña, O.; Rangel-Santos, R.; Rodríguez-De Lara, R.; Apodaca-Sarabia, C. A.; Maldonado-Simán, E.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2017, 52, 2, pp 344-349
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

A study was undertaken at two milk production facilities in the Altiplano region of Mexico containing a sample of 1000 Holsteins including primiparas and multiparas. During the gynecological revision performed with ultrasonography, stress indicators were taken with the objective to determine the...

Author(s)
García-Santiago, D.; Garcez-Mercado, N.; Lammoglia-Villagómez, M. Á.; Aedo y Loya, B.; Daniel-Rentería, I. C.
Publisher
Revista Biologico Agropecuaria Tuxpan, Veracruz, Mexico
Citation
Revista Biológico Agropecuaria Tuxpan, 2015, 4, 6, pp 1325-1330
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

Background: This work studied the natural infection of Neospora caninum during the first gestation of heifers in a dairy farm in animals consuming a ration contaminated naturally with Zearalenone (ZEA), and to find out effect of mycotoxin in the levels of estrogen (E) and progesterone (P4) and...

Author(s)
Cruz-Vázquez, C.; Vital-Gutiérrez, J.; Medina-Esparza, L.; Ortega-Mora, L.; Valdivia-Flores, A.; Quezada-Tristán, T.; Orihuela-Trujillo, A.
Publisher
Tehran University of Medical Sciences, Centre for Electronic Resources Provision and Journal Improvement, Tehran, Iran
Citation
Iranian Journal of Parasitology, 2017, 12, 4, pp 563-571
Abstract

Background: High environmental temperature coupled with high humidity can result in reproductive failure in dairy cattle, with a drastic reduction in reproductive efficiency of dairy herds. Objective: To study the effect of high environmental temperature on reproduction performance of Holstein cows ...

Author(s)
Mellado, M.; Sepulveda, E.; Meza-Herrera, C.; Veliz, F. G.; Arevalo, J. R.; Mellado, J.; Santiago, A. de
Publisher
Universidad de Antioquia, Medellín, Colombia
Citation
Revista Colombiana de Ciencias Pecuarias, 2013, 26, 3, pp 193-200
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
AbstractFull Text

The aim of the study was to determine the reproductive problems caused by the most common diseases that occur during the first 100 days in milking (DM) among Holstein cows managed in the Mexican highlands. In this study, 654 pregnant and near parturition (25±7 days before calving) cows were...

Author(s)
Lammoglia Villagómez, M. Á.; Hernández Flores, J.; Daniel Rentería, I. del C.; Zamora Pardo, A. D.; Barrientos Morales, M.; Domínguez Mancera, B.
Publisher
KPK Publishers, Peshawar, Pakistan
Citation
Research Opinions in Animal and Veterinary Sciences, 2015, 5, 9, pp 370-374
Abstract

The main objective of this study was to assess the effect of month of breeding on reproduction performance of Holstein heifers and cows inseminated with sex-sorted or conventional semen in a hot environment. Pregnancy per artificial insemination (P/AI; 64,666 services over an 8-year period) both in ...

Author(s)
Mellado, M.; Sepulveda, E.; Macias-Cruz, U.; Avendaño, L.; Garcia, J. E.; Veliz, F. G.; Rodríguez, A.
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2014, 46, 1, pp 265-269

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