CN102715124A - Feeding method for increasing postweaning estrus rate of first-farrowing sows - Google Patents
Feeding method for increasing postweaning estrus rate of first-farrowing sows Download PDFInfo
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- CN102715124A CN102715124A CN2012101953087A CN201210195308A CN102715124A CN 102715124 A CN102715124 A CN 102715124A CN 2012101953087 A CN2012101953087 A CN 2012101953087A CN 201210195308 A CN201210195308 A CN 201210195308A CN 102715124 A CN102715124 A CN 102715124A
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Abstract
The invention discloses a feeding method for increasing postweaning estrus rate of first-farrowing sows and belongs to the technical field of livestock breeding. The feeding method for increasing postweaning estrus rate of first-farrowing sows is characterized in that feeding amount of the first-farrowing sows in lactation is changed, feeding amount of daily ration from the first day to the seventh day of lactation is 1.5kg+0.5kg* number of piglets, feeding amount of daily ration from the eighth day to the twenty-first day of lactation is (1.5kg+0.5kg*number of piglets)*140%, feeding amount of daily ration from the twenty-second day to twenty-eighth day is (1.5kg+0.5kg*number of piglets)*120%, the feeding amount of daily ration after weaning is restored to 1.5kg+0.5kg*number of piglets, and nutrition level per unit feed in feeding accords to pig nutrients requirements of American NRC (national research council) (1998). By the feeding method compared with conventional feeding methods, the postweaning estrus rate of the first-farrowing sows is increased by 15%-20%. The feeding method provides reliable and specific experimental basis for increasing the postweaning estrus rate of the first-farrowing sows, and has important theoretical value and broad application prospect in improving reproductive capacity of the first-farrowing sows.
Description
Technical field
The present invention relates to a kind of raising method that improves first farrowing sow postweaning estrus rate, particularly first farrowing sow scale of feeding between lactation period belongs to the livestock reproduction technical field.
Background technology
In the Swine Production, first farrowing sow all occupies suitable vast scale (20%～30%) on commodity field and kind pig farm, and its fertility height is very big to full crowd's influence.Under the normal condition, 85%～90% multiparity sow oestruses in wean performance in back 7 days, and the first farrowing sow rate of oestrusing is merely 60%～70%.Because most of first farrowing sows are not accomplished as yet and self grown, gestation intermediary and later stages fetus grows rapidly and lactation in postpartum lot of consumption, very easily causes the nutrition negative balance.First farrowing sow loses too much body weight and has a strong impact on its lactation amount and reproductive performance subsequently, and comprising weans to inter oestrual period prolongs conception rate, survival rate reduction etc.Therefore, the present invention is significant to research raising first farrowing sow postweaning estrus rate.
Summary of the invention
Technical problem
The present invention seeks to the deficiency to prior art, a kind of raising method that improves first farrowing sow postweaning estrus rate is provided, this method is reasonable in design, and operation is succinct.
Technical scheme
For realizing above-mentioned purpose, the invention provides a kind of like this raising method, it adopts the first farrowing sow lactation to begin to increase scale of feeding on the 8th day, continues to wean, returns to scale of feeding 1.5kg+0.5kg commonly used * piglet number after the wean.
Be that the 1st day to the 7th day daily ration of lactation fed by scale of feeding 1.5kg+0.5kg commonly used * piglet number; The 8th day to the 21st day daily ration of lactation is that benchmark increases mass ratio 40% with scale of feeding 1.5kg+0.5kg commonly used * piglet number; The 22nd day to the 28th day daily ration of lactation is that benchmark increases mass ratio 20% with scale of feeding 1.5kg+0.5kg commonly used * piglet number, returns to scale of feeding 1.5kg+0.5kg commonly used * piglet number after the wean.
Between lactation period, change first farrowing sow daily ration scale of feeding, unit feed nutrition level is with reference to the nutritional need of U.S. NRC pig, and the trophic level of per kilogram daily ration is following:
Nutrition content
Metabolic energy, MJ/Kg 12-14
Crude protein, mass ratio % 15-18
Lysine, mass ratio % 0.8-1.0
Egg+cystine, mass ratio % 0.3-0.5
Threonine, mass ratio % 0.5-0.7
Tryptophan, mass ratio % 0.1-0.2
Calcium, mass ratio % 0.6-0.8
Phosphorus, mass ratio % 0.5-0.8
Vitamin ++
Trace element ++.
Beneficial effect
Because the present invention increases the feed scale of feeding at first farrowing sow between lactation period, reduce the body weight loss that causes because of lactation, change reproductive hormone secretion level in the first farrowing sow body, to compare with raising method commonly used, first farrowing sow postweaning estrus rate can improve 15%～20%.Simultaneously, change during the feed scale of feeding, other unit feed nutrition level is constant, and next tire number of eggs ovulated of first farrowing sow, fetus survival rate and litter size are compared with raising method commonly used and significantly improved, and improve next tire reproductive performance of first farrowing sow.
Description of drawings
Fig. 1 is a first farrowing sow daily ration lactation period scale of feeding sketch map of the present invention.
Fig. 2 first farrowing sow raising method commonly used lactation period and raising method implementation result of the present invention are relatively.
Embodiment
As shown in Figure 1, the 1st day to the 7th day scale of feeding commonly used of feeding of first farrowing sow (236) lactation, lactation began to increase scale of feeding on the 8th day, continued to wean, returned to scale of feeding 1.5kg+0.5kg commonly used * piglet number after the wean.
It is the lactation daily ration 1.5kg+0.5kg * piglet number of feeding the 1st day to the 7th day every day; The lactation daily ration (1.5kg+0.5kg * piglet number) * 140% of feeding the 8th day to the 21st day every day; The lactation daily ration (1.5kg+0.5kg * piglet number) * 120% of feeding the 22nd day to the 28th day every day returns to the daily ration 1.5kg+0.5kg * piglet number of feeding every day after the wean.Sow wean in 28 days, between feed period, scale of feeding changes, and unit feed nutrition level is with reference to the nutritional need (1998) (seeing table 1) of U.S. NRC pig, and first farrowing sow scale of feeding every day lactation period is seen table 2.
Implementation result: see Fig. 2.
Adopt raising method of the present invention, first farrowing sow wean back can occur oestrusing on the 3rd day, and the 7th day rate of oestrusing in wean back can reach 80%; The 10th day rate of oestrusing in wean back can reach 85%; Compare with raising method commonly used, the rate of oestrusing improves 15%～20%, does sth. in advance 1-2 days estrus time.
The trophic level of table 1 first farrowing sow per kilogram lactation period daily ration (with reference to the nutritional need (1998) of U.S. NRC pig)
| Nutrition | Content |
| Metabolic energy, MJ/Kg | 13.19 |
| Crude protein, % | 17.10 |
| Lysine (capable of using), % | 0.9 (0.73) |
| Egg+cystine (capable of using), % | 0.44 (0.36) |
| Threonine (capable of using), % | 0.58 (0.43) |
| Tryptophan (capable of using), % | 0.17 (0.13) |
| Calcium, % | 0.75 |
| Phosphorus, % | 0.60 |
| Vitamin | ++ |
| Trace element | ++ |
Table 2 first farrowing sow scale of feeding every day lactation period
Claims (4)
1. raising method that improves first farrowing sow postweaning estrus rate is characterized in that: first farrowing sow adopts lactation to begin to increase the daily ration scale of feeding on the 8th day, continues to wean, and wean back daily ration returns to scale of feeding 1.5kg+0.5kg commonly used * piglet number.
2. raising method according to claim 1; It is characterized in that: the 1st day to the 7th day daily ration of lactation fed by scale of feeding 1.5kg+0.5kg commonly used * piglet number; The 8th day to the 21st day daily ration of lactation is that benchmark increases mass ratio 40% with scale of feeding 1.5kg+0.5kg commonly used * piglet number; The 22nd day to the 28th day daily ration of lactation is that benchmark increases mass ratio 20% with scale of feeding 1.5kg+0.5kg commonly used * piglet number, returns to scale of feeding 1.5kg+0.5kg commonly used * piglet number after the wean.
3. raising method according to claim 1 and 2 is characterized in that: between lactation period, change first farrowing sow daily ration scale of feeding, unit feed nutrition level is with reference to the nutritional need of U.S. NRC pig.
4. raising method according to claim 1 and 2 is characterized in that: the trophic level of first farrowing sow per kilogram lactation period daily ration:
Nutrition content
Metabolic energy, MJ/Kg 12-14
Crude protein, mass ratio % 15-18
Lysine, mass ratio % 0.8-1.0
Egg+cystine, mass ratio % 0.3-0.5
Threonine, mass ratio % 0.5-0.7
Tryptophan, mass ratio % 0.1-0.2
Calcium, mass ratio % 0.6-0.8
Phosphorus, mass ratio % 0.5-0.8
Vitamin ++
Trace element ++.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104255646A (en) * | 2014-09-10 | 2015-01-07 | 广西扬翔农牧有限责任公司 | Method for increasing postweaning estrus rate of sows after giving birth |
| CN105165709A (en) * | 2015-07-14 | 2015-12-23 | 通威股份有限公司 | Precise feeding method for lactating sows |
| CN108308111A (en) * | 2018-01-30 | 2018-07-24 | 灵川县億旺养殖专业合作社 | The method for improving insemination of sows conception rate and farrowing rate |
| CN108902018A (en) * | 2018-06-08 | 2018-11-30 | 陕西正能农牧科技有限责任公司 | A kind of nutrition feeding method of pregnant sow |
Citations (2)
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| JPS57102128A (en) * | 1980-12-18 | 1982-06-25 | Katsutoshi Kai | Growing of seed pig in small body and propagating same |
| CN101331866A (en) * | 2007-06-25 | 2008-12-31 | 郭惠庆 | Taicang black pig breeding method |
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2012
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57102128A (en) * | 1980-12-18 | 1982-06-25 | Katsutoshi Kai | Growing of seed pig in small body and propagating same |
| CN101331866A (en) * | 2007-06-25 | 2008-12-31 | 郭惠庆 | Taicang black pig breeding method |
Non-Patent Citations (4)
| Title |
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| 张仕权 李亮: "抓好初产母猪的营养调节", 《养殖与饲料》 * |
| 张仕权: "如何对初产母猪进行营养调控", 《农村实用技术》 * |
| 李章军: "浅谈提高规模猪场母猪繁殖率的技术措施", 《湖南畜牧兽医》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104255646A (en) * | 2014-09-10 | 2015-01-07 | 广西扬翔农牧有限责任公司 | Method for increasing postweaning estrus rate of sows after giving birth |
| CN105165709A (en) * | 2015-07-14 | 2015-12-23 | 通威股份有限公司 | Precise feeding method for lactating sows |
| CN108308111A (en) * | 2018-01-30 | 2018-07-24 | 灵川县億旺养殖专业合作社 | The method for improving insemination of sows conception rate and farrowing rate |
| CN108902018A (en) * | 2018-06-08 | 2018-11-30 | 陕西正能农牧科技有限责任公司 | A kind of nutrition feeding method of pregnant sow |
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| CN102715124B (en) | 2013-11-27 |
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Effective date of registration: 20170808 Address after: 212141 Desheng village, Xin County, Dantu District, Jiangsu, Zhenjiang, Fengzhen Patentee after: Zhenjiang city Dantu District cloud Limu Industry Co. Ltd. Address before: Zhong Ling Jie Nanjing Xuanwu District of Jiangsu Province, No. 50 210014 Patentee before: Jiangsu Academy of Agricultural Sciences |