The invention discloses
broussonetia papyrifera antibiotic-free
silage for pregnant black pigs. The
broussonetia papyrifera antibiotic-free
silage for pregnant black pigs is prepared from the following raw materials in parts by weight: 20-50 parts of fresh
broussonetia papyrifera leaves, 10-15 parts of cassava dregs, 10-15 parts of
soya bean meal, 2-5 parts of
corn flour or rice
bran or millet
bran, 1-5 parts of
passion fruit peels, 1-5 parts of
crop leftovers, 0.5-2 parts of an
enzyme preparation, 3-7 parts of sugars, 0.1-1 part of
activated carbon powder, 0.01-0.1 part of microelements and 2-5 parts of probiotics. The invention further provides a preparation method of the broussonetia papyrifera antibiotic-free
silage for the pregnant black pigs. By the fermented broussonetia papyriferaantibiotic-free silage, coarse fibers, hydrolyzed crude
protein and total flavonoids are degraded, the content of polypeptide and the content of
free amino acid are increased, the broussonetia papyrifera antibiotic-free silage is sour and fragrant, is easily absorbed by the pregnant pigs, and is good in
palatability, by the silage, the function of the digestive
system of the pregnant pigs can be improved, the implantation rate of fertilized eggs can be increased obviously, the
litter size can also be increased obviously, the
milk yield is increased, the
immunity and
disease resistance of the pregnant pigs are improved, health of suckling pigs is promoted, and growth of the suckling pigs is accelerated.