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Fruit Powder of Tetrapleura tetraptera in local feed on Some Zootechnical Performances of Juveniles of Clarias gariepinus in Concrete Tank

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Open Journal of Animal Sciences 2024年第2期14卷 56-69页

作者： Ngouana Tadjong Ruben Abdoulaye Abdoulaye Kana Jean Raphaël Téguia Alexis Laboratory of Aquaculture and Demography of Fisheries Resources Aquaculture Department Institute of Fisheries and Aquatic Science of Yabassi University of Douala Douala Cameroon Laboratory of Animal Nutrition Department of Animal Science Faculty of Agronomy and Agricultural Sciences University of Dschang Dschang Cameroon

This study focused on the supplementation of four-sided spice fruit powder (Tetrapleura tetraptera) on some zootechnical performances of juveniles of Clarias gariepinus and was carried out from February 14 to July 20 at the Massoma Fish Farm of Bojongo Mbeidi located in the Littoral Region, Department of Wouri, Douala IV district. The farm benefits from a climate favorable to aquaculture activity. For this purpose, five (5) treatments were tested including T0+ (imported feed), T0-, T0.3, T0.4, and T0.5 respectively for the treatments with 0% supplemented food;0.3%;0.4% and 0.5% of Tetrapleura tetraptera powder. A total of 450 Clarias gariepinus fry with an initial average weight of 7 ± 1.5 g, were distributed in happas of 0.49 m2 each placed in Triplicate in a completely randomized device. Four isoprotein foods with 38% crude protein were formulated to feed these fry at 7% of their biomass per day for 15 days then to their fullness until the end of the experiment. Intermediate fishing was carried out every fortnight. 75 days later, the results recorded show that the highest average survival rate (96.44% ± 3.5%) was recorded with the subjects fed feed supplemented with 0.4% T. tetraptera powder. The average weight (120.93 ± 67.20), weight gain (113.93 ± 67.20), specific growth rate (3.64 ± 0.79% g/d) and total lengths and standard (26.43 ± 1.9 and 23.66 ± 1.76) the highest were recorded with the T0+ treatment (imported feed). The highest conditioning factor K (2.14 ± 0.15) was recorded with the treatment supplemented with 0.4% T. tetraptera. The lowest conversion ratio (1.28) was recorded with the treatment fed with imported blue crown food (T0+). Furthermore, the lowest production cost was recorded with the treatment supplemented with 0.4% T. tetraptera. It appears from this study that the juveniles of C. gariepinus better value the feed substituted with 0.4% of the powder of fou

关键词： Tetrapleura tetraptera local feed Zootechnical Performance Juvenile of Clarias gariepinus

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Cricket Farming for Animal Protein as Profitable Business for Small Farmers in Indonesia

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Journal of Agricultural Science and Technology(A) 2015年第4期5卷 296-304页

作者： Asnath Maria Fuah Hotnida Caroline Herawati Siregar Yuni Cahya Endrawati Department of Animal Production and Technology Faculty of Animal Science Bogor Agricultural University Agatis Street Bogor16680 Indonesia

Cricket is widely recognized in Indonesia especially in Java island, and commonly kept by village farmers for food and feed. In general, crickets has very short life cycle （60-70 d）, with three weeks of laying period and egg production within the range of 200-1,500 eggs/female. The female has capability for multiple mating with several males and therefore produces more fertile eggs. Serial studies including experiments on laboratory and field observation of local crickets had been conducted to evaluate the farming practices and reproductive performance of three local species （Gryllus spp., Gryllus mitratus and Gryllus testaceus） which were given local feeds--Manihot esculenta and Carica papaya leaves. The experiment was conducted in randomized block design with feed as the treatments and species as the block. Cliring crickets （G. mitratus） fed with M. esculenta leaves revealed the highest total egg production （1,478.22 eggs）, with daily egg production of 32.85 eggs/d, the longest laying period （45 d）, the lowest feed intake （0.28 g/head） and feed conversion （0.93 mg/egg）, compared to Cendawang crickets （G. testaceus） and Gryllus spp.. The revenue and cost （R/C） ratio was 1.4, indicating that small scale cricket enterprise could offer significant profit and could be chosen as an alternative activities for earning regular income.

关键词： Gryllus local feed performance economic potential.

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