Effects of omega-3 fat supplementation and feeding frequency on glucose metabolism and insulin in on Mahabad kid

Authors

1 Department of Animal Sciences, Faculty of Agricultural Sciences and Engineering, University of Tehran, Karaj, Iran

2 Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran

Abstract

BACKGROUND: Previous studies have shown that high intake and level of omega-3 have a positive impact on insulin sensitivity in the tissues. OBJECTIVES: This study investigated the effect of omega-3 fat supplementation on glucose metabolism and insulin in  Mahabadi kid. METHODS: Twenty-eight Mahabad goat kids (3 to 4 months, with an average initial weight of 17 ± 5 kg) were randomly assigned to four dietary treatments with a 2 × 2 factorial arrangement, with 2 types of feeding frequency (twice or 4 times in a day) combined with 2 types of fat (saturated fat and fish oil in 2% of DM) to investigate the effect of omega-3 fat supplementation and feeding time frequency on glucose and insulin metabolism. Goats were fed individually for 90 days. On day 70 an intravenous glucose tolerance test was performed after 20 hours of food deprivation. Blood samples were collected at -15, -10, -5, 5, 10, 15, 20, 30, 45, 60, 120 and 180 min after glucose injection. Data were analyzed using the SAS GLM procedure. RESULTS: The IVGTT indicated that Omega-3 supplementation had a significant effect (p<0.05) on glucose clearance rate (CR). On the other hand, with increasing feeding frequency, kids had higher glucose clearance rate (K) and lower glucose half-life. CONCLUSIONS: The results suggested that dietary supplementation with omega-3 fat and increased feeding frequency of diet improved glucose and insulin metabolism.

Keywords

References

 
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Journal of Veterinary Research
Volume 71, Issue 4 - Serial Number 4
December 2016
Pages 415-422

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