Document Type : Research Paper
Authors
- neemat esmaili 1
- Omid Dayani 2
- Reza Tahmasbi 3
- mohammad mahdi sharifi hoseini 4
- zohreh hajalizadeh 5
1 Department of Animal Science, College of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
2 Department of Animal Science Faculty of Agriculture Shahid Bahonar University of Kerman
3 Reza Tahmasbi (PhD) Associate Professor Department of Animal Science Faculty of Agriculture Shahid Bahonar University of Kerman Kerman, Iran
4 Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
5 department of animal science, faculty of agriculture, young researcher society, shahid bahonar university of kerman, kerman
Abstract
In order to investigate the effect of using different levels of pistachio seed coat (PSC) on feed intake, ruminal parameters, microbial protein synthesis and nitrogen retention in Kermani sheep, four male sheep with a mean weight of 54 ± 2 kg were used. This experiment was conducted in 4×4 Latin square design in 4 periods of 21 days. After determining the chemical composition of PSC, it was used in the preparation of experimental diets and replaced with wheat bran. The experimental diets were: 1) control diet (without PSC), 2) diet containing 5 % PSC, 3) diet containing 10 % PSC and 4) diet containing 15 % PSC. The results showed that feed and nitrogen intake, excreted nitrogen and nitrogen retention were not affected by feeding the experimental diets. Adding PSC to the diet reduced ruminal ammonia nitrogen (P < 0.05), however, it did not affect the pH of ruminal fluid at 0, 2, 4, 6 and 8 hours after feeding. The total protozoa population of the rumen was not affected by experimental diets, while the population of cellulolytic species increased linearly (P < 0.05). There was no significant difference between the treatments in terms of total purine derivatives, allantoin, creatinine, uric acid, hypoxanthine, xanthine and, microbial protein synthesis. According to the results, PSC can be used up to 15% of dry matter in sheep diet and replaced with wheat bran or other diet ingredients.
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