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First lactation curve model in canary goats
(Universidad de Córdoba, Servicio de Publicaciones, 1992)
The weekly milkyield of72 canarygoat breeding group raised on the experimental farm of the Centro de Investigación y Tecnología Agraria (Tenerife. Canary Islands) was recorded. All does were in their first lactation and ...
Estimación de la curva de crecimiento en vacuno retinto: aspectos prácticos para la tipificación de pesos
(Universidad de Córdoba, Servicio de Publicaciones, 1992)
The growth curve in Retinto cattle from Extremadura and Andalusia is studied, taking in account the birthing sequence, season and type of birth, type of mating and offsprings sex. The function of lineal regression, Weight ...
Primitive andalusian livestock and their implications in the discovery of America
(Universidad de Córdoba, Servicio de Publicaciones, 1992)
First a brief review of the primitive origins of the diverse Andalusian domestic livestock breeds is done. The Spanish Pure Breed Horse and Merino Sheep are considered the oldest breeds classically characterized, followed ...
Caracterización productiva de la raza vacuna Retinta
(Universidad de Córdoba, Servicio de Publicaciones, 1992)
We have studied 1863 animals, including males, females and offsprings, from the Retinto breed of cattle, belonging to different farmers in the Cadiz province. The effect of birth type, offspring sex, month of the birth, ...
Study of the genetic variability of the Negra Serrana goat breed
(Universidad de Córdoba, Servicio de Publicaciones, 1992)
The Negra Serrana goat breed is considered to be endangered by extinction because of its reduced stocks. In this kind of populations with high risk of reproductive problems due to high consanguinity. is interesting to know ...
Quimerismos celulares 60,XX159,XY t I/29 y 59,XX t I/291 60,XY en el ganado vacuno retinto
(Universidad de Córdoba, Servicio de Publicaciones, 1992)
In a cytogenetic screening of Retinta breed cattle, with the aim to determine the presence and incidence of the 1/29 Robertsonian translocation, some cases of leucocitary chimerism and the 1/29 translocation were observed, ...
Actuality and future of a breeding program in retinto beef cattle
(Universidad de Córdoba, Servicio de Publicaciones, 1992)
We describe the present process of genetic improvement in Retinto cattle breed and the investigations supporting the selection program. The effects of different environmental factors have been analyzed. We have obtained ...
Economic aspects in the conservation of indigenous breeds in Andalusia
(Universidad de Córdoba, Servicio de Publicaciones, 1992)
In this paper an evaluation in dollars of the cost of the Andalusian rare indegenaus breeds conservation by several methods is presented. It constitutets a preliminary aproach to the development of conservation and ...