Effect of Cysteamine Hydrochloride, Guanidinoacetate, and Methionine Supplementation in Finishing Pig Diet on Growth Performance and Carcass Characteristics
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Abstract
The objective of this study was to investigate the effect of dietary cysteamine hydrochloride (CTH), guanidinoacetate (GDA), and methionine (Met) supplementation on growth performance and carcass quality in finishing pigs. A total of 144 pigs was divided into three groups with six replications of eight pigs/pen. They were randomly assigned to one of the three diets; 1) control: commercial diet, 2) CHGMet: commercial diet supplemented with CTH, GDA, and Met 1,000 g/ton, and 3) CTH: commercial diet supplemented with CTH 700 g/ton. They were fed for 90 days. The results showed that pigs fed CTH diet had higher body weight gain (BWG) and average daily gain (ADG) compared with pigs fed with control and CHGMet diets (P < 0.05) from day 1 to 77. In addition, pigs fed with CHGMet and CTH diets had higher average daily feed intake (ADFI) compared with pigs fed control feed (P < 0.05) (day 78 - 90 and day 1 - 90) and pigs fed CTH diet had higher BWG and ADG compared with pigs in the control group (P < 0.05) (day 1 - 90). Additionally, the result of carcass characteristics in finishing pigs showed that loin and belly percentages from pigs fed CHGMet and CTH diets were higher than those from pigs fed control diet (P < 0.05). In conclusion, supplementation of CTH in the pigs diet potentially improves growth performance and carcass characteristics in finishing pigs.
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