Pig year quantity giving column is the main index that measures a dimensions to change hoggery to produce beneficial result, and sow kitten counts rise conduce to raise pig farm year number of head of pig giving column.
So to raise pig farm economic benefits, the yield that how should raise a sow child several?
The answer grabs prophet:Through offerring high grade spermatozoon, science management sow can increase the kitten number of the sow.
[high grade spermatozoon]
Common saying says: The sow is good, several broods; Boar is good, very full slope. The boar spermatozoon with quantitative much high quality is led to raising sow be impregnated and kitten number has main effect. Because this is counted to raise sow kitten, want to be raised scientificly to boar, enough nutrition (if day feeds makings 2.5kg action, protein content not less than 15%[1] ) be united in wedlock with appropriate athletic appearance, regular examination (a week is checked) character of boar seminal fluid, those who assure spermatozoon is high grade rise.
[science management sow]
Anthology leave admirable sow: Bodily form is medium slant on, development is even, the pussy is bigger, have more tit and arrange orderly without blind tit, the sow with outstanding constitution, progenitive performance is high, lay eggs kitten number is high also.
Choose when leaving a sow to raise to oestrus hybridization, can be defeated by raise of essence of life, short-term actor to wait through promoting oestrus hybridization, accurate hybridization in time raise kitten of sow be impregnated to count. Accurate hold sow oestrus time to undertake hybridization in time [2] , the ovum that makes mother pork chop goes out can be effective be united in wedlock with the spermatozoon photograph of the input, be like: Ablactation be in heat of sow 3-5 day, hour of the 24-32 after be defeated by essence of life to react in Jing Li for the first time, removed 23-30 hour undertakes the 2nd times losing essence of life, be in heat of day of the 6-7 after ablactationing, first time oestrus lost essence of life that day, lose hour of 8-12 of interval of essence of life the 2nd times. To not the sow of oestrus can is opposite hormone of sexual gland of hurried of serum of horse of pregnant of sow intramuscular injection and person chorion close to sexual gland hormone is revulsive sow oestrus, stimulative oviposit.
The correct operation when undertaking to the sow hybridization loses essence of life also is one of measure that make sure young of sow high yield is counted. Test-tube it is to should observe whether the sow is static stand, process losing essence of life has flow backwards without seminal fluid, rate is not sought when losing essence of life, want to adjust seminiferous duct and height of bag losing essence of life appropriately according to sow insemination condition, after end losing essence of life, boar keeps period of time, it is better to will assure a sow with this absorb seminal fluid, increase the kitten number that the be impregnated of the sow leads.
Before hybridization, use the means of short-term actor raise, feed 1-2kg high grade feed to be able to stimulate sow oviposit effectively more, increase sow kitten number. Still can cast appropriately feed raw material (if give birth to a potato) , the data shows [3] : Raw material feeds a pig to feed a swine than clinker number of average check kitten rises 2.4.
[conclusion]
To increase sow kitten number, pig farm needs to offer high grade seminal fluid, science management sow makes sow oviposit number rises, be united in wedlock effectively with spermatozoon, raise rate of sow be impregnated thereby.
Bibliographical reference
[1] Lv Guobang, li Jiyuan, zhang Xingang, etc. The technical measure that increases sow kitten number [J] . Chinese animal health care, 2013(7):71-74.
[2] Zhao Shuyang. The crucial technology that increases sow kitten number [J] . Raise pig employment now, 2016, 10(4):62-64.
[3] Zhu Jiang, zheng Yang, wang Jie. The technical measure that increases sow kitten number [J] . Feed and pasturage · dimensions raise a pig, 2013(8) .
Author: Force of Chen Liyi Zhao exceeds
