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Growth performance of kuria labeo, Labeo gonius as a component species in the major carp polyculture system was evaluated at two incorporation levels against a control without the species through a year‐round grow‐out study in nine earthen ponds (0.08 ha). Three species ratio of catla, silver carp, rohu, mrigal and kuria labeo at 15:15:40:30:0 (T‐1: control), 15:15:40:20:10 (T‐2) and 15:15:40:10:20 (T‐3) were evaluated as three treatments. The carps were stocked at a combined density of 7500 fingerlings ha−1. Silver carp demonstrated the highest survival (75–81%) followed by rohu (70–76%), catla (69–76%), kuria labeo (69–71%) and mrigal (67–69%). Species‐wise yield attributes such as survival, harvest weight, SGR and biomass yield of silver carp, catla and rohu were similar in their respective treatments. Kuria labeo at 10% inclusion demonstrated 12% higher harvest weight than its 20% inclusion. However, such higher weight gain could not affect the total biomass yields of carps which remained similar among the treatments. Furthermore, harvest weight of kuria labeo at 10% inclusion was comparable to that of mrigal when the latter incorporated at 20–30% level. Therefore, the study suggested 10% to be a suitable incorporation level for kuria labeo in the commercial grow‐out carp polyculture system.

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A 30‐day nursery trial was conducted to study the contribution of fertilizers, feed and aeration on the growth performance of fringed lipped carp, Labeo fimbriatus fry. Twelve large outdoor concrete tanks (10 m x 5 m x 1.2 m each) provided with 15 cm soil base were divided into three treatment groups. The three treatments received varied input combinations such as: only fertilizer (T‐1); fertilizer + supplementary feed (T‐2); and fertilizer + supplementary feed + aeration (T‐3). Each tank was stocked at 1000 spawn m−3. After 30 days of rearing, the addition of supplementary feeding (T‐2) recorded an 18% increase in the production of fry by number and 5.35‐fold increase by biomass than T‐1. However, additional aeration in T‐3 resulted in 14.8, 31.4 and 44.0% increase in survival, fry yield (in number) and biomass than those in T‐2, respectively, signifying potential advantage of aeration during intensive nursery rearing phase. Aeration also helped to maintain good water quality and sustain higher biomass. The absence of supplementary feeding (T‐1) in such high‐density nursery rearing led to starvation stress and caused poor fry performance in terms of growth and survival. The study further reinstated that added inputs in the form of supplementary feeding and aeration reduced such stress, ensured better environmental conditions and fry performance and also increased the profit margin during high‐density nursery rearing.

Present work was carried out in the Ganjam Field Unit of AICRP on Goat improvement, Odisha to study the effect of deworming regimen on helminths and growth performances in growing Ganjam goats. It was found that deworming by using Ivermectin and Fenbendazole or Oxyclozanide and Levamisole preparation has got a significant effect on Ganjam kids with respect to body weight gain, haemoglobin, serum total protein, albumin and parasitic load. The effect of Ivermectin and Fenbendazole combination was found to be superior over Oxyclozanide and Levamisole combination on growth rate, helminthic infestation in terms of parasitic load and FECRT value. A negative correlation was observed between Hb% and PCV% with the mean parasitic load. Effect of deworming regimen was found to be non-significant at 2 or 3 months intervals using different anthelmintics with respect to parasitic load and growth performance. The deworming against helminths at an interval of 3 months is equally effective, economic and labour saving compared to 2 months.