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Concentrated feedstuff for lactating sows

A technology of concentrated feed and lactation period, which is applied in animal feed, animal feed, application, etc., can solve the problems of not considering the mobilization of sow body tissue, and achieve the effects of alleviating postpartum weight loss, reasonable supplementation, and ensuring healthy growth

Inactive Publication Date: 2013-05-08
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most researchers use the lactating sow amino acid model recommended by NRC (1998) to assess the essential amino acid requirements of sows, but this model is established on the basis of the proportion of amino acids in milk, without considering the mobilization of sow body tissues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The percentage by weight (%) of each component in the concentrate in Table 1 Example 1

[0023] raw material

Proportion

raw material

Proportion

soybean meal

45.0

shell powder

3.0

puffed soybeans

30.0

Calcium hydrogen phosphate

3.0

fish meal

14.6

Multivitamin Mineral Premix

2.0

Lysine

0.6

salt

1.0

Valine

0.8

total

100

[0024] The percentage by weight (%) of each component in the concentrate in Table 2 Example 2

[0025] raw material

Proportion

raw material

Proportion

soybean meal

40.0

shell powder

5.4

puffed soybeans

35.0

Calcium hydrogen phosphate

3.6

fish meal

10.0

Multivitamin Mineral Premix

3.0

Lysine

0.8

salt

1.2

Valine

1.0

total

100

[0026] The percentage by weight (%) of each component in the concentrate in Table 3 E...

effect example 1

[0033] 1. Experimental process and operation: 10 freshly delivered sows with similar body condition were selected and divided into 2 groups, with 5 repetitions for each treatment, that is, 5 sows. The control group was fed with basal diet, and the test group was fed with 70% corn + concentrated feed in Table 1. The test period was 21 days, and the test site was Huangpi.

[0034] 2. Test results

[0035] Table 5 Effects of different treatments on growth performance of sows and piglets

[0036] Determination index

control group

test group

Number of sows (n)

5

5

Average parity (n)

2

2

Number of piglets in litter (n)

10.7±0.78

10.2±0.94

Feed intake (kg)

5.24±0.25

5.39±0.41

Daily average weight loss of sows (kg)

1.34±0.13 *

0.94±0.22

[0037] 21d weaning litter weight gain (kg)

44.2±6.8

43.4±5.7

Piglet daily gain (g)

210.6±10.5

219.4±11.2

Survi...

effect example 2

[0041] 1. Experimental process and operation: 8 sows with the same parity, similar body condition and new birth were selected and divided into 2 groups, with 4 repetitions for each treatment, that is, 4 sows. The control group was fed with basal diet, and the test group was fed with 70% corn + concentrated feed in Table 2. The test period was 21 days, and the test site was stream water.

[0042] 2. Test results

[0043] Table 6 Effects of different treatments on growth performance of sows and piglets

[0044] Determination index

[0045] It can be seen from Table 6 that the postpartum weight loss and post-weaning estrus interval of lactating sows in the control group were significantly higher than those of the test groups (P<0.05); it shows that the concentrated feed of the patent invention can alleviate postpartum weight loss of sows, shorten post-weaning estrus interval, and improve piglet survival rate.

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Abstract

The invention relates to the field of feedstuff, and especially relates to a concentrated feedstuff for lactating sows. The feedstuff comprises the raw materials of, by weight, 85-90% of a protein material, 1.4-1.8% of an amino acid additive, 5-9% of calcium and phosphorous source additive, 2-4% of a composite vitamin mineral premix, and 1-3% of edible salt. With the feedstuff, sow postpartum weight loss can be relieved; energy, protein, mineral, and vitamin nutrients can be supplemented; and piglet healthy growth can be ensured.

Description

technical field [0001] The invention relates to the field of feed, in particular to a concentrated feed for lactating sows. Background technique [0002] In the modern pig industry, due to the reduced feed intake of sows after delivery, they cannot meet the nutrients required for body maintenance and milk production, so it is necessary to mobilize their own fat, protein and calcium and phosphorus in bones for body maintenance and lactation needs. However, when sow body protein and body fat are excessively weightless, it will lead to postpartum weight loss of sows, stunted growth of piglets, and prolonged interval from weaning to re-estrus, which will affect the development of ovarian follicles in weaned sows and reduce the risk of subsequent parity of sows. reproductive performance. At the same time, the calcium and phosphorus in the mobilized bones of lactating sows can easily cause postpartum paralysis or fractures in sows. The calcium in the diet of lactating sows recomm...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16A23K1/175
Inventor 马立保
Owner HUAZHONG AGRI UNIV
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