ประสิทธิภาพของคาลิเปอร์ในการประเมินสภาพร่างกายแม่สุกร
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Abstract
Sow body condition caliper is the new tool for body condition assessment in order to aid feeding decisions during gestation. The aim of this research was to examine the accuracy of sow body condition caliper, compared with visual body condition and backfat thickness measurements, in multiparous sows under commercial conditions. The total of 561 crossbred sows between Landrace and Large White from five farrowing groups were randomly divided into three groups separated by assessing methods include (1) visually scoring, (2) measured backfat thickness at P2 position with lean meter, and (3) caliper. Sows were fed according to body condition based on each method. The body condition score 3, backfat thickness 18 to 20 mm and caliper score between 12 and 15 were assigned as the ideal body condition for pregnancy sows. The results revealed that feed management with difference methods of sow body condition assessment had influenced on number of total born piglets, number of weaned piglets, weaning weight and weaning-to-estrous interval with various results depended on farrowing groups and led to difference consequences in parity 2 and > 7 for birth weight (P < 0.05). Feeding sows during gestation based on caliper score provided the sow to have higher number of total born piglets and number of weaned piglets than visual body condition scoring (P < 0.05), but no difference in reproductive performance compared with backfat thickness measures. This demonstrated that caliper is the accuracy tool for sow body condition assessment to adjust feeding during pregnancy which may be used instead of visual scoring and backfat thickness measurement.
Keywords: caliper; backfat thickness; body condition score; feeding
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References
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