Journal
JOURNAL OF APPLIED ANIMAL RESEARCH
Volume 50, Issue 1, Pages 307-315Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09712119.2022.2068557
Keywords
Body weight; growth performance; nutrient digestibility; plasma antioxidant activity; severe temperature-humidity index
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Funding
- Suranaree University of Technology (SUT) [Full-time 61/02/2021]
- Thailand Science Research and Innovation (TSRI)
- National Science, Research and Innovation Fund (NSRF) [90464, 160368, FF3-303-65-36-17]
- National Research Council of Thailand (NRCT) [900105]
- Nakhon Ratchasima Rajabhat University (NRRU)
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The study found that feeding meat goats diets containing mangosteen peel powder improved growth performance and plasma antioxidant activity, making it an environmentally friendly strategy for use under severe temperature and humidity conditions.
The aim of this study was to evaluate the growth performance and plasma antioxidant activity of meat goats fed diets containing mangosteen peel powder (MPP; 41.25 g/kg dry matter). Twelve goats (body weight, 23.1 +/- 1.49 kg) were fed a total mixed ration for 0-38 days under a severe temperature-humidity index (temperature, 80.96-103.64 degrees F; humidity, 63%). Body weight and samples of feed, rumen fluid, blood, faeces, and urine were analysed. The MPP diet included condensed tannins, flavonoids, and cinnamic acid. Compared to the control group (CTL; no MPP), dietary MPP increased the nutrient digestibility of organic matter and body weight percentage of goats. Total volatile fatty acids, with a higher proportion of acetic acid, were higher in the MPP group; however, pH and NH3-N remained unchanged for both groups. Methane production in the rumen was reduced in the MPP group. Dietary MPP partly improved biochemical indicators such as plasma total protein (PTP) and albumin (ALB), and modulated antioxidant activity by increasing the glutathione peroxidase concentration and 2,2-diphenyl-1-picrylhydrazyl scavenging activity in plasma. These findings indicate that feeding meat goats the proposed MPP diet represents an environmentally friendly strategy for improving growth performance and plasma antioxidant activity under a severe temperature-humidity index.
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