Feed nutrition measures to improve broiler feed conversion efficiency
2020-12-21
Based on the latest research progress at home and abroad, systematic nutritional measures can improve the feed conversion efficiency of broilers by 0.08-0.1 on the current basis (Aftab et al., 2018).
Specific measures include the following aspects: ① Control of feed intake. If the overall feed intake is controlled by 2-3% and waste is reduced, the feed conversion efficiency can be improved by 0.02-0.03; ② Make full use of the compensation growth. If the nutritional intake of broilers at the age of 11-18 is slightly restricted, after 19 days of age, the feed conversion efficiency will be improved by about 0.02, and the performance in long-day-old broilers such as yellow chickens will be more obvious; ③Considering starch digestion.
For example, ensuring that 5-10% of the starch in the formula is slow-digestible starch, which can ensure the synchronization of the digestion and absorption of nutrients, which can improve the feed conversion efficiency by about 0.03; ④Improve the function of the musculature. Ensure that 2-3% of insoluble fiber in the feed formula, such as adding oat bark, sunflower seed meal, etc., adding about 5% of whole grains, etc., feed raw materials such as corn and other coarse crushing can improve the feed conversion efficiency by about 0.04; ⑤ Improve pellet quality. Ensure that the powder content of the finished product is below 20% when the feed is transported to the broilers through the automatic feed line, which can improve the feed conversion efficiency by about 0.03; ⑥Control the tempering temperature during feed processing.
The temperature of feed conditioning is controlled below 80℃ to reduce the reaction and loss of heat-sensitive substances, which can improve feed conversion efficiency by about 0.02; ⑦High-dose use of phytase Adding about 2000 FTU/kg high temperature resistant phytase can improve the feed conversion efficiency by about 0.02-0.04. In summary, it is worthy of practice to improve the current broiler feed conversion efficiency through the above nutritional measures.
