The factors of the flock itself are different. The flocks in the growing stage also have different feed utilization rates, such as the chickens are low and the chickens are high. The difference between individual chickens also differs in feed utilization.
Feed factors Different types of feed have different nutrient digestibility. Soybeans contain anti-nutritional substances such as antitrypsin, saponin and hemagglutinin. These substances will affect their digestion and utilization and some physiological and biochemical processes of chicken. If heated properly, anti-nutritional substances can be destroyed. The colza cake contains glucosinolates, which are hydrolyzed by mustard enzymes to produce toxic substances such as thiocyanate or oxazolidine. These two compounds can affect energy metabolism and feed conversion ratio. Other feed ingredients (such as valleys) Solid, green fodder, grass powder, feather meal, blood meal, etc. also contain some unfavorable factors affecting feed utilization.
When the feed formula is scientifically formulated, only nutrients (such as energy, protein, amino acids, vitamins, minerals, etc.) can meet the nutritional needs of the chicken, and the optimal ratio can be achieved. To achieve the highest; on the contrary, it will inevitably lead to the waste of feed nutrients.
Processing and storage of feed The same feed has different nutritional values ​​due to different processing methods. Such as machine-pressed cakes have lower levels of protein extracted from sputum, and high temperatures may also denature proteins, thereby reducing nutritional value. The longer the feed is stored, the lower the nutritional value of the feed, and the mildew and deterioration of the feed, and even the occurrence of animal diseases.
Feeding environment and the feeding environment in which the stressed chickens are located, such as temperature, humidity, ventilation, light, and the content of harmful gases in the air, may cause chicken stress, thereby reducing feed utilization.
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