مطالعه ترکیبات شیمیایی و ارزش تغذیهای زباله های گیاهی در بنگلادش
|کد مقاله||سال انتشار||تعداد صفحات مقاله انگلیسی||ترجمه فارسی|
|140666||2018||35 صفحه PDF||سفارش دهید|
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Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Veterinary and Animal Science, Volume 5, June 2018, Pages 31-37
The present study was conducted with the objectives of determining the chemical composition and nutritional value of vegetable waste (VW) of households and the marketplace for their suitability as ruminant feed. The crude protein, total digestible nutrients and extent of rumen degradability of dry matter (DM) of VW of households were 140.0â¯gÂ kgâ1, 0.668 and 0.855, respectively; while those of the marketplace were 169.0â¯gÂ kgâ1, 0.633 and 0.80, respectively. The levels of chromium and lead in each respectively, was 13.27 and 1.53â¯ngÂ kgâ1DM; and 31.01 and 5.71â¯ngÂ kgâ1DM. The total aflatoxins in VW of households was 3.08â¯ÂµgÂ kgâ1DM, and undetectable in VW from the marketplace. Considering the chemical composition and safety parameters studied, VW could preliminary be considered as animal feed. The feeding of processed marketplace VW (VWP) at 275â¯gÂ kgâ1DM of a diet or 0.76% of live weight (LW) to growing bulls, replacing 50% of a concentrate mixture as supplement to a Napier silage diet for a period of 34 days reduced the total DM intake (0.0276â¯vs 0.0343 LW) without any significant (Pâ¯>â¯0.05) changes in DM or protein digestibility. Blood urea levels (19.5â¯vs 23.67â¯mgÂ dlâ1), and serum creatinine levels (1.37â¯vs 1.08â¯mgÂ dlâ1) differed significantly (Pâ¯>â¯0.05) between the two groups but were within normal physiological ranges. Therefore, it may be concluded that the level of incorporation of VWP would be less than 50% replacement of the concentrate in the diet. Further research is required to determine optimum inclusion levels in ruminant diets.