Experiments on second spawning of major Indian carps in the same season by hypophysation

Bhowmick, R M; Kowtal, G.V.; Jana, R K; Gupta, Sandipan

doi:10.1016/0044-8486(77)90182-x

Cited by 12 publications

(5 citation statements)

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“…Carp seed production is mainly based on induced spawning (Chaudhuri and Singh, 1984). The development of controlled breeding of Indian major carps (IMC) (Bhowmik et al., 1977; Kaul and Rishi, 1986) led to multiple spawning techniques providing possibilities for year‐round availability of carp seed (Gupta et al., 1995). Apart from broodstock management and spawning techniques, pre‐spawning nutritional regimes have immense significance for optimum reproductive performance and egg quality.…”

Section: Introductionmentioning

confidence: 99%

Reproductive performance of carp, Catla catla (Ham.), reared on a formulated diet with PUFA supplementation

et al. 2007

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Effect of dietary supplementation of n-3 and n-6 polyunsaturated fatty acids (PUFA) on reproductive performances in both sexes of an Indian major carp, Catla catla (Ham.), were investigated in terms of sperm quality, spawning response, fecundity and spawn recovery over a consecutive 2-year period. Sperm count and spermatocrit value were in the range of 3.2-3.8 · 10 7 ml )1 and 80-82%, respectively, in fish fed the PUFA-enriched test diet, and significantly higher (P < 0.01) than in fish fed control diet (2.3-2.5 · 10 7 ml )1 and 64-70%). Spawning response in the test diet group was quite high (96%) compared to 76% in the control. Egg and larval quality were superior in the test diet group as evidenced by the significantly higher fertilization rate and larval survival in the range of 91-92% and 93.3%, respectively. Fatty acid profile of fertilized eggs and larvae showed that the quantities of 18:3 (n-3), 20:5 (n-3) and 22:6 (n-3) were significantly (P < 0.01) increased in the test group while 18:1, 18:2 (n-6) and 20:4 (n-6) remained at higher levels in control. The results indicated that enrichment of n-3 PUFA in the broodfish diet not only improved the quality of eggs and larvae in terms of recovery, but also enhanced the physiological response of broodfish to induced spawning. Oil enrichment in the broodfish diet should therefore be mandatory to ensure the optimum n-3 PUFA content for warmwater carp for quality seed production.

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Section: Introductionmentioning

confidence: 99%

Reproductive performance of carp, Catla catla (Ham.), reared on a formulated diet with PUFA supplementation

et al. 2007

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“…Although a considerable amount of information on the aspects of breeding habits and reproduction in captivity is available [6,18], very little information on the influence of essential dietary constituents like PUFA and vitamins on the reproductive success in Catla catla is available. Currently, there is a high demand for stockable fry of this preferred species of the Indian major carp (IMC) due to its faster growth rate and amenable to culture in different freshwater ecosystems [31].…”

Section: Introductionmentioning

confidence: 99%

Effect of dietary supplementation of fatty acids and vitamins on the breeding performance of the carp Catla catla

et al. 2001

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-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. diet / fatty acid / broodstock / breeding performance / Catla Reprod. Nutr. Dev. 41 (2001) 365-375 365

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“…Fertilised eggs were incubated in a flow up glass jar system (Bhowmick, 1978). The average rate of fertilisation in this experiment was found to be 70%.…”

Section: Males Matured At 1+mentioning

confidence: 96%

A Note on Artificial Propagation of a Teleost, <i>Pangasius pangasius</i> (Hamilton)

Gupta,

Reddy,

Rath

et al. 2023

joa

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Experiments on second spawning of major Indian carps in the same season by hypophysation

Cited by 12 publications

References 1 publication

Reproductive performance of carp, Catla catla (Ham.), reared on a formulated diet with PUFA supplementation

Reproductive performance of carp, Catla catla (Ham.), reared on a formulated diet with PUFA supplementation

Effect of dietary supplementation of fatty acids and vitamins on the breeding performance of the carp Catla catla

A Note on Artificial Propagation of a Teleost, <i>Pangasius pangasius</i> (Hamilton)

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