Spray-dried plasma in the recovery of light piglets at weaning: production performance, blood profile, diarrhea frequency and economic viability
DOI:
https://doi.org/10.5433/1679-0359.2011v32n4Sup1p1989Keywords:
Spray dried plasma, Urea, Diarrhea, Economic efficiency.Abstract
The aim of this research was to evaluate the effects of spray-dried plasma (SDP) on the performance, hematological profile, diarrhea frequency and economic viability of this ingredient in diets for light piglets at weaning, with 21 days of age. The trial was done using 72 pigs, 48 castrated male and 24 female (PenArLan), with an initial age of 21 days. The experimental design consisted of randomized blocks, with 4 treatments and 6 repetitions (each pen with two males and one female was considered a repetition). The treatments were: T1 - heavy weight weaned pigs, without supplementation; T2 - light weight weaned pigs, supplemented with 10g/animal/day of SDP; T3 - light weight weaned pigs, supplemented with 20g/animal/day of SDP; T4- light weight weaned pigs, without supplementation. The SDP were fed daily directly at the feeder three times per day. At 35 and 70 days old piglets were subjected to blood collection, and 8 animals in each treatment were used. Daily evaluation was made of diarrhea frequency. There was difference to feed:gain (P < 0,05) considering the period of 21 to 49 days of age and total period (21-70 days of age), with advantage to T3. The initial value for plasmatic urea was higher (P < 0,01) to pigs of T1 but the final titles were similar. There were no differences (P > 0,05) on frequency of diarrhea. There were differences in feed cost with advantage to T3 in the period of 21 to 35; 36 to 49 and 21 to 49 days of age. In total period (21 to 70 days of age) T3 showed the best index of economic efficiency.
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