Document Type : Research Paper

Authors

1 Animal Science Research Department, Gilan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Rasht, Iran

2 Department of Animal Science, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran.

Abstract

Sixteen male Markhoz 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, nutrients digestibility, meat quality attributes and fatty acid profile of triceps brachii muscle and omental fat based on a completely randomized design with two treatments and eight replicates. The Primalak probiotic was fed daily in the amount of two grams to each kid in the respective treatment. Growth performance parameters, including average daily feed intake, average daily weight gain, and feed conversion ratio were not affected by bacterial probiotic feeding. Digestibility of diet’s chemical components showed no significant difference between treatments. Similarly, the quality attributes of triceps brachii muscle, including pH24, drip loss, water holding capacity, and chemical composition had similar values in both experimental treatments. Kids with access to bacterial probiotic had significantly lower saturated fatty acids, higher mono-unsaturated fatty acids and greater unsaturated to saturated fatty acids ratio in examined muscle (P<0.05). However, with the exception of lower C15:0 concentration in kids receiving bacterial probiotic (P<0.05), fatty acids profile in omental fat tissue did not change in response to probiotic consumption. It can be concluded that Primalak multi-strain probiotic with the mentioned dosage (2g/d/h) is not an effective additive to make significant changes in nutrients digestibility, Markhoz kid’s performance, meat quality attributes and fatty acids profile of different fat tissues.

Keywords

ناصری هرسینی، رضا و کفیل‌زاده، فرخ. (1395). تأثیرات استفاده از پروبیوتیک تجاری برعملکرد تولید، فراسنجه‌های پلاسما و صفات لاشۀ بزغاله‌های مرخز. مجلۀ تولیدات دامی، 18(4)، 761-773.
 
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