Document Type : Research Paper
Authors
- kamal shojaeian 1
- omolbanin dahmardeh ghaam abad 2
- mosafa yousef elahi 3
- poorya Dadvar 4
- Hasan Fazaeli 5
1 Associate Professor, Department of Animal Sciences, Faculty of Agriculture, Zabol University, Iran
2 student
3 Dept. off Animal Science , Faculty of Agicultue , Univesity of Zabol
4 Assistant Professor, Department of Animal Science Research, Kerman Agricultural and Natural Resources Research and Education Center, AREEO, Kerman, Iran
5 Professor, Animal Science Research Institute of IRAN (ASRI), Karaj, Iran
Abstract
In order to evaluate the feasibility of producing date leaf silage using different levels of date molasses and urea, an experiment was conducted with 4 treatments including: 1) 90% green date leaves and 10% date molasses, 2) 90% green date leaves, 9.62% date molasses and 0.38% urea, 3) 85% dry date leaves, 14.38% date molasses and 0.62% urea, and 4) 85% dry date leaves and 15% date molasses. The composition of the silages was calculated based on fresh weight. The results showed that the highest percentage of dry matter and organic matter was significantly observed in treatments 1 and 2 (P<0.01). The highest amount of crude protein was observed in treatment 3 (P<0.05). Also, neutral and acidic detergent fibers were significantly higher in treatments 1 and 4 (P<0.05). The total quality assessment score of silages was significantly higher in treatment 3 (P<0.01). Under the influence of different levels of urea and molasses, the ammonia nitrogen of silages was significantly higher in treatment 3 (P<0.01). Also, the amount of water-soluble carbohydrates was significantly higher in treatments 2 and 3 (P<0.01). The highest volume of gas production, digestibility of organic matter and metabolizable energy were significantly observed in treatments 3 and 4 (P<0.01). The results of the present study showed that adding urea and date molasses improved the quality and nutritional value of date leaf silage, and the best silage was treatment 3 with a combination of 85% dry date leaves, 14.38% date molasses, and 0.62% urea.
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