Document Type : Research Paper
Authors
1 Animal Science Research Department, Gilan Agricultural and Natural Resources Research and Education Center, AREEO, Gilan, Iran
2 Department of Animal Science, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
Abstract
Sixteen male Morkhoz kids (13.2±1.6 kg live body weight, 3 months old) were used to evaluate the effects of a commercial bacterial probiotic supplement on growth performance, meat quality attributes and fatty acid composition of muscles. Kids were randomly distributed between two treatments and were fed ad libitum for 119 days before slaughter. The Primalak probiotic was fed daily and before the first meal in the amount of two grams to each goat in the respective treatment. Growth performance and dressing percentage were not affected by bacterial probiotic feeding; Although subcutaneous fat depth decreased in response to probiotic consumption (P<0.05). Among the assessed physical meat quality attributes, including pHu, drip loss, water holding capacity, cooking loss, arner bratzler shear force, and meat colour indices, only the values of L* index for semimembranosus and a* index for longissimus thoracis muscle (P<0.05) were affected when bacterial probiotic was fed. Addition of probiotic to the diet had minor effects on proximate composition and fatty acids composition of muscles. In conclusion, the bacterial multi-strain probiotic used in the current experiment didn’t make a significant change in goat’s performance and most aspects of meat quality.
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