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Thirty three male tudanca young bulls were used to evaluate 2 production systems (intensive and semiextensive) and 2 slaughter ages (12 and 14 months).
The use of markers-derived metrics has been suggested to infer relative inbreeding from the homozygosity of markers. Automated genotyping systems yield accurate genotypes of multiple SNPs which are useful markers for this goal.
The present work is part of an experimental program aimed to establish the dietary lysine (Lys) requirements of post-weaned Iberian piglets. For this purpose, we used 66 castrated male Iberian piglets of Silvela strain, with approximately 10 kg bodyweight and 40 days of age.
The aim of this study was to analyze the effect of the farm geographical location and of the theoretical time distance between the farm and the insemination center on the fertility after cervical AI. Data from 18,528 AI in Rasa Aragonesa ewes belonging to the UPRA selection scheme were recorded.
The Celta pig breed was the most important in Galicia (northwest of Spain) until beginning of the 20th century, suffering from this moment a continuous decrease caused by the introduction of improved breeds and their crosses.
Animal tissue composition is determinant in the quality of animal products and is influenced by several factors including diet, genetic type, age and sex. Diet effect on Iberian pig's tissue composition is a relevant issue with productive and economic implications, not well understood to date.
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