Livestock and poultry have different needs for roughage
The demand of ruminants for roughage The content of crude fiber in the roughage is more than 30%. It plays a filling role in the digestive tract of ruminants and has the function of promoting gastrointestinal motility and improving digestion. There must be sufficient amount of roughage in ruminant diets to fully utilize the effects of other feeds. Cows, sheep, and camels in ruminant livestock have higher digestive utilization of roughage. Under grazing conditions, natural grassland or artificial grassland can basically meet its nutritional needs. Under house-feeding conditions, ruminant livestock has a good use of straw feed, and roughage can account for 70%-80% of the diet. The digestibility of corn straw is between 40% and 45%, and the digestibility of ammoniated corn is around 60%. Such as fattening hybrid bulls, daily feeding of 9-10 kilograms of chopped corn stalks, combined with 3 kilograms of concentrate feed, the daily gain can reach 500 grams or more.
Demand for roughage in non-ruminant livestock Non-ruminant livestock refers to pigs in horses, baboons, donkeys, and omnivores in herbivores. Horses, baboons, and donkeys have a more developed cecum and can use large amounts of roughage. However, roughage must be processed or mixed with appropriate amount of concentrate in order to achieve better feed effects. Pigs have poor digestion and absorption of roughage and need to process roughage into powder. The amount used is generally no more than 10% of the diet. High-quality grass meal can be slightly more, and straw meal generally accounts for 5%-3% of the diet. Will have a negative effect.
Poultry Demand for Roughage Poultry's digestion and utilization of roughage is low, and it is required that the roughage is a high-quality grass powder, such as grass powder such as alfalfa and clover. Roughage mainly plays a role in promoting gastrointestinal motility in livestock breeding, while nutrients are supplied by concentrate feed. Gooses and ducks in poultry prefer to eat fresh grasses and wild vegetables. The proportion of roughage in the diet can account for about 5%. Crude feed in the diet of meat goose or laying hens only accounts for 2%-3%.
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