What are the differences in the demand for roughage between livestock and poultry?

Consultation: I am a farmer in Ganzhou District. When formulating feed, what is the difference in the demand for roughage for different livestock and poultry?

Answer: 1. The demand of ruminants for roughage. The content of cellulose in the roughage is more than 30%, and it plays a filling role in the digestive tract of ruminants and has the function of promoting gastrointestinal 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 utilization effect on straw feed, and roughage can account for 70% to 80% of the diet. The digestibility of corn straw is 40% to 45%, and the digestibility of ammoniated corn is about 60%. Such as fattening hybrid bulls, daily feeding 9 ~ 10kg of chopped corn stalks, combined with 3kg concentrate feed, the daily gain of more than 500g.

2. Demand for roughage of non-ruminant livestock. Non-ruminant animals refer 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 flour can be slightly more, and straw meal generally accounts for 5% to 3% of the diet. Will have a negative effect.

3. The demand of poultry for roughage. Poultry has lower digestibility and utilization of roughage, and requires roughage to be high-quality grass flour, 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 for meat broiler or layer chickens only accounts for 2% to 3%.

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