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METHOLOGY TO STABILIZE INTENSIVE SYSTEMS OF SWINE PRODUCTION BY MEANS OF THE REPLACEMENT RATE  [2000]

Pérez Sánchez, R., Facultad de Medicina Veterinaria y Zootecnia-UMSNH Desarrollo Tecnológico en Sistemas de Producción Animal.Área:Cerdos

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One of the characteristics of the swine production is to be unstable due to its biological component. So the objetive of the swine industry is to archive this stability on environmental and economic conditions and technological practices of the same system. The objective of this work was the stabilization of a swine production intensive system by means of the replacement rate. We developed a methodology that allowed to quantitate its variability and to model its stabilization. The study was carried our in La Piedad, Michoacan, in a intensive system with capacity for 2125 sows. We used information of 1997-1999 of the week production control (n = 156). The first 1999 part of the statistical analysis was carried out with the methodology of the generalized lineal models (GLM), evaluating the environmental effects. The second part of the analysis determined the replacement rate as the main factor to be stabilized. The factors to determine the replacement rate were: the number of female wearners. The replacement rate were; the number of female weaners, the porcent of mated sows 7 days postweaning and fertility. We determined the amount of required replacement sows to stabilize the flow of week production. The methodology showed that it is possible to stabilize the system optimizing the replacement rat

(Revue

Revista Computadorizada de Producción Porcina (Cuba)

ISSN : 1026-9053

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