PERFORMANCE OF WEANED HYLA RABBITS SUPPLEMENTED WITH VITAMIN C

Authors

  • Dauda V.M.
  • Orunmuyi .M
  • Iyeghe-Erakpotobor G.T.

Keywords:

Heat stress, weaners, performance, vitamin C, THI, Hyla rabbit.

Abstract

Performances of 40 weaned Hyla rabbits divided into 4 groups with different water nutritional
supplementation were analysed. This study was conducted at the rabbitry unit of National
Animal Production Research Institute during hot- dry season 2012. The first group received a
nutritional supplementation of 100mg vitamin C in water. The second group received 150 mg,
the third group received 200 mg and the fourth received 250 mg of vitamin C. Temperature
Humidity Index (THI) inside the rabbitry was estimated for the period of the studies.
Temperature in the morning and afternoon was significantly (P<0.05) higher in May than June
and July. THI in the morning and afternoon was significantly (P<0.05) higher in April but lower
in June and July. The results indicated that there was no significant (P>0.05) effect of Vitamin
C on water intake, feed intake and water to feed ratio. However, there was significant (P<0.05)
effect of Vitamin C on final weight, weight gain, vitamin C intake and feed conversion
efficiency. There was significant (P>0.05) interaction between month and vitamin C on water
intake, feed intake and water to feed ratio. Final weight was higher for rabbits on 200 vitamin C
than 250 and 100 though similar to 150 vitamin C. weight gain was higher for 150 and 200
vitamin C than 250 and 100 vitamin C. Average daily gain was lower for 100 vitamin C than for
150, 200 and 250 vitamin C. Vitamin C intake was significantly (P<0.05) higher for 250 than
for 200, 150 and 100 levels. Feed conversion efficiency was better for 150 and 200 vitamin C
than for 100 and 250 vitamin C. Performance of weaned Hyla rabbits could be improved during
the hot period by supplementing 150- 200 mg vitamin C in water.

Published

2015-12-30