Effect of applying Nitrosa in diets containing almond hull on digestibility and nitrogen balance in sheep

قنبری, الناز and سیف دواتی, جمال and یلچی, طاهر and سیدشریفی, رضا and عبدی بنمار, حسین Effect of applying Nitrosa in diets containing almond hull on digestibility and nitrogen balance in sheep. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

The purpose of this study was to investigate the effect of Nitrosa (slow-release non-protein nitrogen source) in diets containing almond hull on digestibility and nitrogen balance in sheep. In this study, four adult sheep weighing 49.33 ± 4.59 which were kept in metabolic cages were used. Four rations were tested with the same raw protein and energy content, which contained 36% of the total crude protein content of non-protein nitrogen supplements. Only urea was used in the first treatment. In the second treatment, 24% of the crude protein required by urea and 12% by Nitrosa was provided. In the third treatment of urea and Nitrosa, respectively, 12 and 24%, and in the fourth treatment Nitrosa was used only to provide 36% of the total crude protein needed in four periods. Each period included 14 days of habit and 5 days of measurements. The dry matter digestibility, crude protein, crude fat and organic matter were not affected by the experimental syringes and there was no significant difference between the treatments (p >0.05). The digestibility of insoluble fiber in neutral detergent under the influence of experimental diets showed a significant difference between treatments (p <0.05). Treatment 4 had significant differences with treatment 1 and 3 and there was no difference between treatment 4 and 2. Using Nitrosa in diets containing almond hull as low-cost non forage fiber source also low-protein, can be useful in improving the digestibility of fiber.

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