How to make feed for Broussonetia papyrifera

The leaves of Broussonetia papyrifera contain more proteins, amino acids, vitamins and trace elements, which have high comprehensive nutritional value and can be eaten by pigs. How does Broussonetia papyrifera make feed?

1. How to make feed for Broussonetia papyrifera

1. Raw material formula for non-anti-fermentation feed: 50% of fermented leaves, 15% of corn, 4% of soybean meal, 1% of fish meal, 20% of rice bran meal, 6% of wheat bran, 1% of stone powder, 1% of calcium hydrogen phosphate, 0.25% of salt, 1% of premix, 0.5% of enzyme preparation.

The enzyme preparation is cellulase and its activity is ≥ 5000IU.

The mixture includes the following trace elements per kilogram of feed content: iron 100mg, copper 30mg, zinc 90mg, manganese 15mg, iodine 0.2mg, selenium 0.3mg. No antibiotics are added to the premix.

2. the preparation method of non-anti-fermentation feed:

The main results are as follows: (1) the feed raw materials such as Broussonetia papyrifera leaves, corn, soybean meal, fish meal, rice bran meal, wheat bran and stone meal are treated by a grinder with a sieve aperture of 1.5-3.0mm.

(2) calcium hydrogen phosphate, salt, premix and enzyme preparation are mixed according to the formula proportion to form the mixture.

(3) the crushed materials obtained from steps 1 and 2 are fully mixed with the mixture according to the proportion of the formula to serve as the basic fermentation substrate.

(4) the basic fermentation substrate obtained in step 3, the water content is controlled by 55-65%, the feed starter is added, and the mixture is stirred evenly.

(5) the fermented feed after inoculation was compacted in a fermentation feed bag, vacuumed and sealed, and cultured in the fermentation room for about 72 hours. the pH decreased to less than 4.4 and had a strong sour flavor, which was a qualified product.

The feed starter includes lactic acid bacteria, Bacillus subtilis and yeast, and the addition amount of lactic acid bacteria, Bacillus subtilis and Saccharomyces cerevisiae is 0.5-1%. The non-fermentation feed products were added in 50% of the conventional black pig feed at different stages.

Second, why should Broussonetia papyrifera ferment as feed

In the early days, farmers cut up the leaves of Broussonetia papyrifera and fed them with chopped and boiled food. this method of feeding had poor palatability, destroyed protein and greatly reduced vitamin content. Now through starter fermentation, not only its vitamin content can be preserved, but also can improve the protein content, sour and sweet, mellow taste, very suitable for the taste of pigs.

At present, Broussonetia papyrifera is mainly treated by fermentation, and then fed. There is a certain gap in different formula, raw material selection and proportion.