| چکیده انگلیسی مقاله |
Extended Abstract
Introduction and Objective: Ruminant animals and their products play an important role in providing food for many people. They are able to convert plants that cannot be digested by humans into usable protein for humans. Therefore, the purpose of this research was to investigate the nutritional value of Sesbania sp. L. for ruminant Animals.
Material and Methods: The experimental treatments included the control diet (without the Sezbania plant), 25, 50, 75, and 100% replacement of the Sezbania plant with alfalfa. The amount of gas produced by the samples at 2, 4, 6, 8, 10, 12, 24, 48, 72, and 96 hours after incubation was recorded and gas production parameters, digestibility of organic matter, their metabolizable energy, ammonia nitrogen concentration, pH and protozoa population of culture medium were estimated. The resulting data were analyzed with a completely randomized design. In the present experiment, the chemical composition, digestion, and fermentation of Sesbania plant were also compared with alfalfa hay.
Results: According to the results, compared to the control, diets containing Sesbania, replaced with alfalfa, had significantly the lowest potential and gas production rate at all levels (P < 0.05). The comparison of the Sezbania plant and alfalfa hay showed that the potential and gas production rate of alfalfa was higher than that of the Sezbania plant. In the experimental diets, the partitioning factor, microbial biomass production, and microbial biomass production efficiency were higher at all levels of Sesbania replaced with alfalfa compared to the control diet, and the levels of 75% and 100% of Sesbania replaced with alfalfa were significantly higher partitioning factor than the control and other treatments (P<0.05), but the truly degradable organic matter was not affected by the experimental treatments. The results regarding the comparison of the Sezbania plant and alfalfa hay showed that the partitioning factor, microbial biomass production, and microbial biomass production efficiency of the Sezbania plant were significantly higher than alfalfa (P<0.05). The results of fermentation parameters after 24 hours of incubation showed that the pH of the rumen culture medium was not affected by the experimental treatments, but the ammonia nitrogen concentration was affected by the experimental treatments (P<0.05), and the control treatment had the highest ammonia nitrogen concentration. In the comparison of the Sezbania plant with alfalfa hay, the pH of the rumen culture medium was not affected by the experimental treatment, and the ammonia nitrogen concentration of the Sezbania plant was significantly lower than that of alfalfa hay (P<0.05). The helotrich, entodinomorph, cellulitic protozoa population, and the total rumen protozoa population were the highest in the control treatment (29.33) and the lowest in the 100% replacement of Sesbania plant with alfalfa hay (9.66). The results regarding the comparison of the Sezbania plant with alfalfa hay showed an increase in the population of Helotrich, Entodinomorph, and Cellulitic protozoa, and the total population of rumen protozoa in alfalfa hay, and a decrease in the population of Sezbania plant. The results of in vitro digestibility showed that the digestibility of dry matter, NDF, and ADF was the highest in the control treatment. The comparison of the Sezbania plant with alfalfa hay showed that the digestibility of dry matter, NDF, and ADF of alfalfa was higher than that of the Sezbania plant.
Conclusion: In general, the results of the present experiment showed that the chemical composition and digestibility of the Sesbania plant are similar to alfalfa hay; therefore, the Sesbania plant can be considered as a suitable substitute for alfalfa hay. |
| نویسندگان مقاله |
مرتضی چاجی | Morteza Chaji
Department of Animal Science, Faculty of Animal Science and Food Technology, Agricultural Sciences and Natural Resources University of Khuzestan, Iran
دانشگاه علوم کشاورزی و منابع طبیعی خوزستان
سمیه حسینی | somayeh Hosseini
Department of Animal Science, Faculty of Animal Science and Food Technology, Agricultural Sciences and Natural Resources University of Khuzestan, Iran
دانشگاه علوم کشاورزی و منابع طبیعی خوزستان
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