Effect of salbutamol on production performance and carcass quality of finishing pigs
2002
Ronachai Sitthigripong(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Department of Animal Production Technology) | Saichon Lerdsuwon(King Mongkut's Institute of Technology Ladkrabang. Chumphon Campus, Chumphon (Thailand). Dept. of Animal Science) | Kunya Tuntivisuttikul(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Industrial Education. Dept. of Agricultural Education) | Jutarat Sethakul(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Department of Animal Production Technology)
This study was conducted to determine the effect of salbutamol on production performance and carcass quality of finishing pigs. 210 three breed-cross barrows averaging 70 kg were randomly distributed to two dietary treatments containing of 0 and 15 ppm salbutamol in the diet. Average daily gain was not significantly affected by salbutamol in diet. Pig fed salbutamol diet was lower (P0.05) average daily feed intake and higher (P0.01) feed conversion ratio than those fed control diet. The feed cost per kilogram gain in weight of control pigs was slightly higher than those fed salbutamol diet. 200 animals were slaughtered at average 100 kg live-weight for evaluating carcass quality. The salbutamol treated pigs showed shorter carcass length (3.45 percent), less back fat thickness and Lenden-Speek Quatient (LSQ) (10.00 percent and 27.27 percent, respectively) and smaller fat area (16.08 percent) but higher Longissimus muscle area (15.23 percent) and Longissimus muscle area/fat area (38.09 percent)than control pigs (P0.01). Pig fed salbutamol diet had significantly decreased total fat percentage (20.39 percent) and total bone percentage (4.88 percent) but significantly increased boneless lean cuts percentage (10.47 percent) than those fed control diet (P0.01).
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