Compound feed for lactation sow and feeding method for improving reproductive performance of lactation sow

A technology for compound feed and sows, applied in animal feed, application, animal husbandry, etc., can solve the problems of inability to meet the nutritional needs of lactating sows and protein weight loss of lactating sows, and achieve the goal of improving the nutritional level of feed and meeting nutritional needs. Effect

Inactive Publication Date: 2016-10-12
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that some nutrients (especially several restrictive amino acids) in the existing diet design cannot meet the nutritional needs of lactating sows, so that the protein weight loss of lactating sows is serious

Method used

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  • Compound feed for lactation sow and feeding method for improving reproductive performance of lactation sow
  • Compound feed for lactation sow and feeding method for improving reproductive performance of lactation sow
  • Compound feed for lactation sow and feeding method for improving reproductive performance of lactation sow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] During the lactation period, a ration was fed, corn-soybean meal-fish meal basal ration (prepared in accordance with NRC 2012), and the limiting amino acid content of the ration was Lys 0.89%, Val 0.78%, Thr 0.60%, Trp 0.17%, Met 0.24%, Met+Cys 0.49%; according to postpartum sow weight 200kg, average feed intake / (average feed intake + feed waste) is 0.98, with 10.5 piglets, average piglet daily gain 250g / d model preparation.

Embodiment 2

[0039] During the lactation period, two kinds of rations were fed according to the two-stage feeding mode. The rations from 1 to 7 days contained Lys 1.31%, Val 1.13%, Thr 0.74%, Trp 0.24%, Met 0.39%, Met+Cys 0.68% ( The ratio of lysine to valine is about 100:86); 8 to 21 days old Lys1.10%, Val 0.93%, Thr 0.65%, Trp 0.20%, Met0.29%, Met+Cys0.57% (lysine The ratio of lysine to valine (Lys:Val) in the two diets is about 100:85, and the ratio of lysine and valine in the two diets is about 100:85.

Embodiment 3

[0041] During the lactation period, two kinds of rations were fed according to the two-stage feeding mode, and the rations from 1 to 7 days contained Lys1.31%, Val 1.57%, Thr0.74%, Trp0.24%, Met0.39%, Met+ Cys0.68% (the ratio of lysine to valine is about 100:120), 8 to 21 days old Lys1.10%, Val 1.32%, Thr 0.65%, Trp 0.20%, Met0.29%, Met+Cys0. 57% (the ratio of lysine to valine is 100:120), and the ratio of lysine to valine (Lys:Val) in the two diets is about 100:120 and formulated according to the NRC (2012) standard.

[0042] The raw material composition and nutrient content of the diet are shown in Table 1 below, in which the digestible energy and amino acid levels are the calculated values, and the crude protein is the analyzed value.

[0043] Table 1. Test diet composition:

[0044]

[0045] Note: The content of raw materials is in mass percentage.

[0046] Table 2. Nutrient level of test diet (air-dried basis, %)

[0047]

[0048]

[0049] Example results:

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Abstract

The invention discloses compound feed for lactation sow and a feeding method for improving the reproductive performance of the lactation sow. Two types of compound feed for the lactation sow are provided according to obvious difference in feed intake of the lactation sow in two phases (in 1-7 days after delivery and in 8-21 days after delivery). The compound feed suitable for the lactation sow in the first phase contains 1.31% of Lys (lysine), 1.13-1.57% of Val (valine), 0.74% of Thr (threonine), 0.24% of Trp (tryptophan), 0.39% of Met (methionine) and 0.68% of Met and Cys (cystine) combinations; the compound feed suitable for the lactation sow in the second phase contains 1.10% of Lys, 0.93%-1.32% of Val, 0.65% of Thr, 0.20% of Trp, 0.29% of Met and 0.57% of Met and Cys combinations. The compound feed and the feeding method have the advantages that two feeding groups for the lactation sow in the two phases are free of obvious influence on the feed intake of the sow in lactation periods, the piglet weaning average daily weight gain and litter weight gain can be obviously increased, back fat loss of the sow in the lactation periods can be reduced, estrus intervals can be obviously shortened, and accordingly the compound feed and the feeding method have excellent production application value.

Description

technical field [0001] The invention belongs to the breeding technical field of agricultural production, relates to the design and feeding method of compound feed for lactating sows, and in particular to a method for improving the lactating performance of lactating sows, reducing the loss of body weight (body protein), shortening the The compound feed and feeding method of pig estrus interval. Background technique [0002] The feeding of lactating sows is the core link of large-scale pig raising. Whether the nutrition supply is reasonable or not affects the litter size of sows, the survival rate and weaning weight of piglets, the estrus and service life of sows, and directly affects the economic benefits of pig raising. In the past two decades, pig breeding aimed at reducing the backfat thickness of commercial meat pigs has changed the genotype of sows. Mature sows are large in size, low in feed intake, and high in milk production. Sows' nutritional needs There has been a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/30A23K20/142A01K67/02
CPCA01K67/02
Inventor 马立保张顶黄俊程黄敏徐保阳李梦超
Owner HUAZHONG AGRI UNIV
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