102 results about "Breathing bag" patented technology

The invention discloses fermented feed for improving productivity of sows as well as a preparation method and application of the fermented feed. The preparation method comprises the following steps: (1) preparing fermentation raw materials; (2) preparing an activation culture medium, wherein the mass M of the activation culture medium is 10-15% of the total mass of the fermentation raw materials;taking 2-2.4% M of soybean meal powder and adding a right amount of water, filtering to take clear liquid, adding 1-1.6% M of brown sugar, adding 0.1-0.14% M of table salt, and supplementing water toobtain the activation culture medium; (3) carrying out activated fermentation on a seed solution, and inoculating; (4) bagging and fermenting: putting the obtained feed into an anaerobic breathing bag, wherein the feed in the bag can be used when the pH value is reduced to 4.2. The fermented mixed feed is used for improving the productivity of the lactating sows and progeny growth; the maize in daily ration of the lactating sows is replaced with the same mass of the fermented mixed feed. The fermented feed provided by the invention can obviously increase the feed intake and nutrient digestibility of the lactating sows, increases the milk yield of the lactating sows and the IgA content in the milk, improves the weaning weight gain of piglets, and reduces the diarrhea rate of the piglets, thus providing a new way for nutrition regulation of the sows bred in a non-resistant way.