Extruded hard pellet feed for lactating sows and preparation method thereof

Abstract

The invention discloses an extruded hard pellet feed for lactating sows, which is prepared by the following raw materials in parts by weight: 50-55 parts of corn, 3-4.5 parts of imported super steam fish meal, 3-5 parts of fermented soya bean meal, 8-10 parts of flour, 10-15 parts of wheat, 13.5-15.1 parts of non-transgenic soya bean, 2-4 parts of rapeseed meal, 5-10 parts of extruded-soybean, 1-2 parts of mineral substance premix, 0.2-0.3 parts of vitamins premix, 1.0-2.0 parts of calcium hydrogen phosphate, 2.5-4 parts of soybean oil, 1-2 parts of calcium propionate and 0.1-0.2 parts of oligosaccharide. The extruded hard pellet feed is prepared by tempering the raw materials in the formula by using a double-shaft squeezing well-done extruder under a certain condition and then curing under a certain curing condition. The crude protein of the extruded hard pellet feed is greater than 16.2%, the curing degree is above 80%, the extruded hard pellet feed has comprehensive nutrition and extrusion, the anti-nutrition factors are destroyed, and after the extruded hard pellet feed is used for feeding pregnant sows, the birth weights of piglets are above 1.6 kg in average.

Description

technical field [0001] The invention relates to a feed for lactating sows (84 days of pregnancy-weaning), in particular to an extruded hard granular feed for lactating sows and a preparation method thereof. Background technique [0002] With the improvement of breed improvement and feeding management technology, the farmers' pursuit of economic benefits of breeding, the annual litter size and birth weight of sows (the quality of litter), and excellent weaning weight are the most important factors affecting economic benefits that cannot be ignored. important part. Annual sow production Over the past two decades, the management of sows and gilts has undergone major changes, with gilts mated at a younger age and lighter weight. As a result, modern gilts have even begun their breeding cycle at less than 200 days of age. The first estrus of commercial group gilts is generally 150 to 200 days old. In addition, the litter size increases, the demand for breast milk is large, and ...

AI Technical Summary

Problems solved by technology

At present, there is no suitable extruded feed for lactating sows, which requires creative research and experimentation on the raw material components, the content of each raw material component, and suitable production technology, so that it can be suitable for feeding sows and has reasonable nutrition. , the digestion and utilization rate of extruded feed is high, and the extruded hard pellet feed for lactating sows with low feed coefficient