A depression in sow reproductive performance at the second litter is frequently experienced in modern production. Reducing the loss of body reserves during lactation and increasing energy intake between weaning and service have been suggested as ways of increasing the size of the second litter. This trial investigated these possibilities.
Evidence from trials elsewhere has indicated that the porcine gammaglobulin preparation of porcine blood origin (IMMUSURETM Porcine: a trademark of Cambridge Bionutritionals Ltd) was effective in providing passive protection for piglets deprived of colostrum. Passive protection is conferred soon after birth and a piglet which has not sucked would be “at risk”. The light-weight piglet is considered “at risk” as it may not compete effectively for a teat and suckle. Consequently it may have less energy reserves and lower passive protection against disease. The object of the experiment reported here was to assess the effect of porcine gammaglobulin supplement on the performance and survival of light-weight piglets from birth to ten weeks of age on a commercial farm.
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