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OJVRTM
Online Journal of Veterinary Research©
Volume 21(9):549-553, 2017.
Effect of egg yolk supplement on weight gain and food intake in male Wistar rats
Arash Omidi1*, Saeed Nazifi2,
Fateme Namazi3, Sara Monjezi4
Department(s) 1Animal Health
Management, 2Clinical
Studies, 3Pathobiology,
School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
ABSTRACT
Omidi A, Nazifi
S, Namazi F, Monjezi S.,
Effect of egg yolk supplement on weight gain and food intake in male Wistar rats, Onl J Vet Res., 21(9):549-553, 2017. Obesity is a worldwide public health
challenge. One rat month is equivalent to ~5 human years. Effect of an egg yolk
powder supplement on weight gain and feed intake in seventy 56-63 day old
200-250g male Wistar rats kept in 10 separate cages
for 7 weeks (~4 human years), are described. Rats were given 19% protein basal
diet supplemented with 50% egg yolk powder. Controls (n=7) were fed basal diet
only. All rats gained and lost weight equally over time. Overweight controls
lost 24.19 ± 13.54g and overweight treated 23.51 ± 15.59g (P>0.05). However, weights in controls were significantly
lower (P<0.019) compared with rats in 3 cages given egg yolk diet during the
first 3 weeks. Food intake in the third week was greatest (12.62 ± 1.59g) and
least at the 7th week in controls. Results suggest no association between egg
intake and weight gain in Wistar rats in this study.
Key Words: Obesity, egg yolk supplement, rats.
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