Effect of physical, chemical and biological processing on wheat straw yield and digestibility in ruminants

Document Type : Scientific-Extensional Article

Authors

1 M.Sc. student of Animal Nutrition, Department of Animal Science, College of Agriculture and Natural Resources at the University of Tehran

2 Associate Professor of Animal Nutrition, Department of Animal Science, College of Agriculture and Natural Resources at the University of Tehran

Abstract

Feed processing has always been the focus of nutritionists to increase yield and reduce production costs. Wheat straw is a feed component that has been studied extensively for its processing and quality, especially for its digestibility. These study are summarized in three general categories: physical, chemical, and biological. In this study, we tried to investigate all three types of processing and their effect on digestibility of wheat straw. In the first experiment on wheat straw particle size only significant difference was observed in sorting activity and it was recommended to use shorter particle size. In the second, which were classified as chemical processing, it was found that sodium hydroxide, ammonia and urea increased the digestibility of wheat straw, in addition to their digestibility, check the their effects on other nutritional properties, and nutritional behaviors (DMI, Feeding time, Meal time and Rumination time). In the fourth experiment, two strains of fungi (Lentinula edodes and Ceriporiopsis subvermispora) were used for wheat straw processing, which were classified as biological process which increased digestibility of wheat straw in addition to digestibility of variations in different sections of feed in this process.

Keywords

References

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