Tag Archives: Diet

xxx I.A. Plotnikov, M.M. Mukhamedyanov, I.A. Domsky, O.Yu. Bespyatykh and N.A. Makarova
Experience and prospects for application of by-products of processing of fruits in the production of animal feed
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Experience and prospects for application of by-products of processing of fruits in the production of animal feed

I.A. Plotnikov¹²*, M.M. Mukhamedyanov¹, I.A. Domsky¹, O.Yu. Bespyatykh³ and N.A. Makarova⁴

¹Russian Research Institute of Game Management and Fur Farming, 79 Preobrazhenskaya street, RU610000 Kirov, Russia
²Vyatka State Agricultural Academy, 133 October Avenue, RU610017 Kirov, Russia
³Vyatka State University, 12 Orlovskaya street, RU610002 Kirov, Russia
⁴Kirov State Medical University, 112 Karl Marx street, RU610998 Kirov, Russia
*Correspondence: bio.vniioz@mail.ru

Abstract:

The purpose of the research was to study the feasibility of using by-products of the industrial processing of fruits for the production of full-feed mixed fodders with the possibility of using these mixed feeds as the only feed in the diets of herbivorous fur animals (nutria, brown muskrat, steppe marmot). Studies of chemical composition and nutrition have shown that non-traditional ingredients can be included in the composition of feed. At their expense, you can save up to 30% of leguminous feed, 9% – cake, 1% – meat and bone meal. This allowed us to reduce the cost of the studied batches of feed by 18–21%. Experiments have shown the effectiveness of using such feed in the diets of herbivorous fur-bearing animals. The inclusion of compound feed in the diet allowed to increase the number of commercial offspring per female muskrat by 0.8 heads, compared to the control group. The safety of young animals until the moment of depositing puppies from their mothers was approximately equal in both groups. Young muskrats of the experimental groups had 5.5–6.8% higher values of average daily increments, compared to control analogues. A similar pattern is established in male nutria. Marmots of the experimental group from the very beginning of the experiment were outnumbered by control animals. In July, these differences reached statistically significant values: 4,085 ± 71 g vs. 3,736 ± 73 g (p < 0.01). Thus, the marmots of the experimental group recovered faster after winter hibernation.

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281-297 J. R. Gnepe, R. D. Tyagi, S. K. Brar, J. R. Valero and R. Y. Surampalli
Statistical optimization of agro-industrial diets for the rearing of Cydia pomonella using response surface methodology
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Statistical optimization of agro-industrial diets for the rearing of Cydia pomonella using response surface methodology

J. R. Gnepe¹, R. D. Tyagi¹*, S. K. Brar¹, J. R. Valero¹ and R. Y. Surampalli²

¹INRS Eau, Terre et Environnement (INRS-ETE), 490, de la Couronne, CP 7500,Québec, Canada G1K 9A9; Phone: (418) 654 2617; Fax: (418) 654 2600
²US EPA, P.O. Box-17-2141, Kansas City, Kansas, KS 66117e-mail: gnepej@yahoo.fr; satinder.brar@ete.inrs.ca; tyagi@ete.inrs.ca; josevalero@videotron.ca

Abstract:

In this study, apple pomace and brewery wastewater were used as nutritive agents and as alternative substitutes for the ingredients (soya flour, wheat germ and yeast extract) without affecting the production of the diet. The quantity of agro-industrial waste added during production was based on a regime where the different nutrients were maintained as a constant, such as proteins (3.71 ± 0.09 g), carbohydrates (4.2 ± 0.12 g) and lipids (2 ± 0.08 g) based on their concentration in the standard diet. Various diets produced using different concentrations of waste and ingredients were tested using the culture of Cydia pomonella in order to optimize the diet in terms of nutrition and optimal viscosity (to facilitate assimilation of nutrients). Optimization of the rearing parameters was carried out using response surface methodology. This demonstrated that the brewery wastewater (BWW-SF) diet provided the best results for insect-rearing (81% hatching, 76% larvae and 51% adults) which was closer to the control diet (90% hatching, 80% larvae and 65% adults) and was more significant than the other diets (40–70% hatching, 45–50% larvae and 9–30% adults). In addition, the viscosity was higher in diets where the solids content was higher. The increase in viscosity was in line with the solidification of agar, which evolved rapidly over time and in relation to the solids present in the diet.

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