Roughage includes hay and straw feeds, which are characterized by low nutrient content and high cellulose content. Due to the different digestive and physiological characteristics of various livestock and poultry, the demand for roughage varies greatly. First, ruminant livestock demand for roughage Ruminants livestock, cattle, sheep, camels, due to rumen, honeycomb feeding, abomasum and re-stomach four different functions of the stomach, high digestion and utilization of roughage. Under grazing conditions, natural grassland or artificial grassland can basically meet their nutritional needs. In the condition of feeding, roughage accounts for 70-80% of the diet. Ruminant livestock has a good use of straw feed. Corn mash feed, fattening hybrids have a daily feed of 9 to 10 kilograms, and with 3 kilograms of concentrate, daily gain can be as high as 5,000 grams or more. The digestion and utilization rate of corn stalk is 40~45%, and the digestibility of ammoniated corn stalk is about 60%. Roughage of cellulose content of more than 30%, in the digestive tract filling effect, and promote gastrointestinal motility and improve digestive function. Therefore, in ruminant livestock diets, there must be sufficient roughage in order to fully utilize the effects of other feeds. Second, the demand of non-ruminant livestock for roughage Non-ruminant animals refer to pigs in horses, donkeys, apes, and omnivores in herbivores. In this type of livestock, horses, donkeys, and quails have a more developed cecum, and they can also make heavy use of roughage. However, under normal circumstances, the roughage can be processed or mixed with appropriate amount of concentrate feed to achieve better feeding results. Pigs have poor digestion and absorption of roughage and need to process the roughage into powder. The amount used should not exceed 10%. High-quality grass powder can be slightly more, straw powder is generally 5 to 6%, too much will have a negative effect. Third, the poultry's demand for roughage Gooses and ducks in poultry prefer to eat fresh grasses and wild herbs. The proportion of roughage in the diet is about 5%, and the roughage of broilers or layers only accounts for 2% to 3% in the diet. Poultry has low digestive utilization of roughage and requires high-quality grass flour such as alfalfa, clover and other grass powders. The roughage mainly plays the role of promoting the motility of gastrointestinal foods in poultry breeding. The main nutrient is provided by the concentrate feed. Canned Oyster Mushromms,Oyster Mushromms Canned,Oyster Mushromms Tin,Canned Mushroom Whole ZHANGZHOU TAN CO. LTD. , https://www.zztancan.com