20 research outputs found
Book Review: Allison Busch, Poetry of Kings: The Classical Hindi Literature of Mughal India
Effect of dietary supplementation of fatty acids and vitamins on the breeding performance of the carp Catla catla
Five isonitrogenous diets (~33% crude protein) were fed to the brood female carp,
Catla catla (weighing 3.0 to 5.5 kg), for a period of 93 days in order to observe
their breeding performance in earthen ponds. Diet-I (control) contained only basic
ingredients like rice bran, groundnut oil cake, roasted soybean meal, fish meal and
mineral mixture; diet-II contained added vitamins; diet-III contained added vitamins
and vegetable oil (rich in n-6 polyunsaturated fatty acids, PUFA); diet-IV contained
added vitamins and fish oil (rich in n-3 PUFA); and diet-V contained added vitamins
and a mixture of vegetable and fish oils. The results showed that nutritional quality
of the diet considerably influenced breeding performance in the species. The total
number of matured females was the highest in the diet-V group and maturity was advanced
by 35 days in this group compared to the control. In diet-III and diet-V groups, all the
maturated females bred fully and the relative fecundity was increased significantly in
diet III, IV and V. The maximum (73.4% ) fertilisation rate was observed in the diet-V
group, followed by 61.3% , 56.8% , 49% and 22.7% in diet-I, diet-IV, diet-III and diet-II
groups respectively. Most of the eggs in the diet-II treatment group remained immature.
The various data thus obtained suggest that dietary supplementation of both n-3 and n-6
PUFA, is essential to improve gonadal maturation, breeding performance and spawn recovery
in the catla female broodstock