234,862 research outputs found

    Effects of fish-meal, cow blood-meal, and sorghum diets on food utilization and growth of cage cultured Sarotherodon niloticus

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    The growth responses and feed utilization of Sarotherodon niloticus held in metal cages in a pond and fed diets containing fish-meal, cow blood-meal or sorghum was studied. Results indicate that the best growth, feed conversion and protein efficiency ratio were obtained with the diet containing 60% fish-meal. The growth performance of fish on 40% fish-meal, and 40% and 60% blood meal were not significantly different, and were quite close to the performance with 60% fish-meal. The growth and food utilization of fish on 84% sorghum diet was significantly lower than the rest. The Caged fish without supplemental feeding had a light gain in weight. All fish with supplemental feeding appeared healthy. It is concluded that cow blood meal at 40% or 60% inclusion in diet can adequately replace fish-meal in S. niloticus supplemental diet in pond cultur

    Substituting fish meal with grasshopper meal in the diet of Clarias gariepinus fingerlings

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    The effect of inclusion of grasshopper meal on the growth, feed conversion ratio and survival of Clarias gariepinus fingerlings of mean weight 9.71g was investigated. The results show that the best growth and food utilization indexes were recorded in the fingerling fed with 10% grasshopper meal and 30% fish meal, while the poorest growth and food utilization indexes were recorded with the diet containing 25% grasshopper meal and 15% fish meal. The best survival of 100% was observed in the diet containing 30% grasshopper meal and 10% fish meal while the worst survival of 73.3% was observed in the diet containing 25% grasshopper meal and 15% fish mea

    Commercial production of fish meal from fish waste

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    The importance of fish meal production as a means of reducing fish waste currently being experienced in the fisheries subsector is discussed. Cost estimate for Nigeria establishing a fish meal manufacturing plant and suggestions on rational execution of the project are presented. If properly located and well managed, the project will serve to convert fish waste to cash in the industrial fisher

    From Grain to Feed

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    Horse beans are used as an example of grain, which have potentials to substitute fish meal in fish feed. After several grinding and fractionation steps it was possible to obtain a protein-rich horse bean fraction with a yield of 19 %. This fraction contained 55.9 % protein. The high protein content together with the amino acid profile makes the fraction very suitable as a substitute to fish meal in fish feed. The protein-rich fraction was used as a successful additive in extruded fish pellets

    Evaluation of the nutrient composition of some unconventional feedstuffs

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    A trial was carried out to evaluate the nutrient composition of some unconventional feedstuffs to ascertain their suitability for incorporation into fish feed. Pawpaw seed, mudskipper meal, water melon seed, almond kernel and groundnut husk were processed and analyzed for their proximate and mineral composition using internationally established procedure. The results obtained showed that the experimental feed stuffs had percentage crude protein that ranged from 7.38% to 55.85%. The highest level (55.85%) was found in mudskipper meal while the lowest (7.38%) was found in groundnut husk. The experimental feed stuffs had appreciable levels of calcium, potassium and phosphorus ranging from 0.29% to 1.87%, 0.17 to 1.26 and 0.06 to 0.97 respectively. Almond kernel can be used to replace soybean meal in aqua feed. Also, mudskipper meal can be used to replace fish meal in order to produce a cheaper fish feed; but it was recommended that feeding trials should be conducted to ascertain the inclusion level at which they can be effectively incorporated. The potentials of some of these feedstuffs in fish feed formulation seem high

    Horse bean, pea and rape protein and flax seed oil in feed for organic trout

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    Organic horse bean, pea and rape may partly replace the fish meal protein, and flax seed oil may replace the fish oil in feed for organic rainbow trout. These are the most recent results from the ORAQUA project. Fish meal and fish oil are unique sources to protein and oil in fish feed due to the optimum content of amino acids and omega-3 fatty acids. However, as these resources are globally very limited, the ORAQUA project is focusing alternative organic plant crops in the feed for organic trout

    PENGARUH PEMBERIAN TEPUNG KEONG SAWAH (Pila ampulacea) SEBAGAI PENGANTI TEPUNG IKAN DALAM PAKAN TERHADAP KUALITAS TELUR BURUNG PUYUH (Coturnix coturnix Japonica)

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    SUBSTITUTION EFFECT OF FISH MEAL WITH SNAIL MEAL (Pila ampulacea) IN RATION  ON QUILL EGG QUALITY (Coturnix coturnix Japonica). The objective of this study was to evaluate the substitution effect of fish meal with snail meal in ration on quill egg quality. Total of 60 quills at age of 5 weeks old were used on the period study of 8 weeks. The completely randomized design was applied in this study consisted of 4 treatments with 5 replications at each treatment. The treatments were levels of snail meal substituting fish meal in ration as follows: R0 = 0% snail meal + 15 % fish meal, R1 = 5% snail meal + 10% fish meal, R2 = 10% snail meal + 5% fish meal, R3 = 15% snail meal + 0% fish meal. Variables measured in this study were including egg weight, yolk index, albumin index, yolk color and shell thickness. Results showed that snail meal affected significantly (P<0.05) the egg weight and albumin index, did not affect yolk index, yolk color and shell thickness. Therefore, it can be concluded that substitution of fish meal with snail meal up to 15% in ration of quill produced good products of egg weight, yolk index, albumin index, yolk color and shell thickness.Key words: Snail meal, fish meal, quill egg quality

    Effect of plant and animal protein sources on the growth, gonadal maturity and proximate composition of Labeo rohita (Hamilton, 1822)

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    The aim of the present study was to evaluate the effect of plant and animal sources in the diet of Labeo rohita with an overall goal of gaining sustainable fish and egg production. Fishes with an initial weight of 310-323 g were fed with five different isocaloric (3Kcalg-1) diets viz. D1 ( control diet- 30% rice bran + 70% groundnut meal), D2 (30% rice bran + 50% groundnut meal + 20% fish meal), D3 (30% rice bran + 50% groundnut meal + 20% mustard meal), D4 (30% rice bran + 30% groundnut meal + 20% mustard meal + 20 % fish meal) and D5 (30% rice bran + 30% soybean meal + 20% mustard meal + 20 % fish meal) @ 3% of fish biomass for 270 days. Significantly higher weight gain and better gonadal maturity was recorded in fishes fed with diet containing fish meal than other. Among diets containing fish meal (D2, D4, D5), fish fed on diet D2 resulted in higher somatic growth (35.67, 42.80, 28.10 and 18.48% higher net weight gain than D1, D3, D4 and D5, respectively) and better gonadal development (43.20, 50.08, 22.59 and 23.25% higher absolute fecundity than D1, D3, D4 and D5,respectively) in L. rohita. Hence, Our study revealed that for higher growth and better broodstock development, L. rohita may be fed on diet formulated with 30% rice bran, 50% groundnut meal and 20% fish meal

    PERFORMA AYAM KAMPUNG SUPER YANG DIBERI TEPUNG USUS AYAM SEBAGAI SUBTITUSI TEPUNG IKAN

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    The aim of this research was to analyze the performance of the super native chicken and the optimal level of chicken intestine meal which can substitute fish meal in the feed ration. This study used a completely randomized design (CRD) consisting of 5 treatments and 4 replications. The treatments given were P0 = 10% fish meal + 0% chicken intestine meal in the feed rations, P1 = 7.5% fish meal + 2.5% chicken intestine meal in the feed rations, P2 = 5% fish meal + 5% chicken intestine meal in the feed rations, P3 = 2.5% fish meal + 7.5% chicken intestine meal in the feed ration, P4 = 0% fish meal + 10% chicken intestine meal in the feed ration.The number of super native chickens used in this study was 100 chickens. The results showed that giving chicken intestine meal as a substitute for fish meal in the feed ration had no significant effect (P 0.05) on feed ration consumption, body weight gain, and feed conversion ratio of super native chicken. It can be concluded that giving chicken intestine meal as a substitute for fish meal in the feed ration gives the same performance. Chicken intestine meal can substitute or replace fish meal up to a level of 10% in the feed ration super native chicken

    Screening of inexpensive and indigeneous ingredients for use in practical feed for juvile sea bass (Lates calcarifer Bloch)

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    Abstract onlyAn eight-week feeding experiment with juvenile sea bass (about 15 g) was conducted in 500-1 fiberglass tanks to screen the most cost-effective practical diet for use in ponds and floating cages. Eleven formulations and one control feed were tested. Protein sources used were locally available ingredients such as fish meal, shrimp head meal, scrap squid meal, cow's blood meal, poultry feather meal, leaf meals, soybean meal, and mung bean meal. The diets contained a combination of animal and vegetable protein sources such that the essential amino acid composition was close to the requirement or tissue levels. Crude protein and fat levels were about 42% and 8.3%, respectively. Fish were fed ad libitum twice a day at 0800 and 1600 h. Best weight gain (189%) and feed conversion ratio (FCR, 1.7) were observed in fish given a combination of fish meal, shrimp head meal, scrap squid meal, soybean bean meal, and kangkong leaf meal as protein sources. This was followed by those given a combination of fish meal, shrimp head meal, scrap squid meal, soybean meal, and ipil-ipil leaf meal (139% weight gain, FCR of 2.2). Worst growth (22%) and FCR were observed in fish given a combination of fish meal, cow's blood meal, scrap squid meal, soybean meal, and mulberry leaf meal. Control fish given a combination of fish meal, shrimp meal, and soybean meal showed weight gain of 195% and FCR of 1.8. Survival was high (83-100%) in all treatments. The two diets which gave the best growth rates, survival, and FCR in the screening phase can be tried in ponds and floating net cages
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