The mechanism of the oestrus after the sow ablactations: The corpus luteum after ablactationing dissolves quickly, degrade, follicular germinate, visible vulva begins after 3~5 day red, day of after this 1~2 is achievable hybridization, day of the 3~7 after ablactationing commonly via producing a sow but natural oestrus hybridization, because this sow is in of this key " 7 days " should pay close attention to mainly.
Inside a few so brief days, we must have paid short-term actor raise, add the substance of oestrus of can revulsive sow, oviposit from nutrition, the purpose makes the sow yields more ovum, much be impregnated.
In this one period main task is: Sow oestrus observation and oestrus appraisal, this is the crucial place of timely hybridization. On timely hybridization foundation, quality of boar seminal fluid can affect hybridization result directly, the quality that checks boar seminal fluid at any time so is very necessary.
Want to give more attention to unusual oestrus and the sow that return recrudescent favour, want to use health care or other method to make its become pregnant as soon as possible. If still cannot be successful, be about to make processing opinion to its, fall into disuse as soon as possible. The end that such doing is to reduce invalid sow to raise day, raise a sow to produce per year young nest on average to count, and shorten sow from ablactation the average time between hybridization (break match span) .
"17 days " those who point to is young pig ablactations from 25 days this paragraph of time, because ablactation,be young pig should stimulate an element greatly most from postnatal.
The raises administrative technique to matter to young pig directly growth after young pig ablactations development, do bad meeting to cause young pig to grow swollen disease of unboiled water of diarrhoea of pig of stunt, young, hair, wait for serious consequence to death very.
1, ablactation young pig drops fat: Ablactation because young pig ablactations should stimulate, the appetite inside a few days after ablactationing is poorer, collect appetite insufficient, cause young pig weight to won't increase, can drop instead. The growth of pig of the 1st week of young after ablactationing development state of affairs meets those who be opposite one of giving birth to grow function has main effect. According to the report, ablactation every add weight of period young pig 0.5kg, achieve appear on the market weight standard place needs day of several meetings to reduce 5 ～ 7 days.
2, ablactation young pig diarrhoea: Ablactation young pig can produce diarrhoea normally, expression is anorexia, drink is about to increase, discharge olivine rare dung, bring about weight to appear negative growth.
Because this is in what this phase needs to adopt measure to avoid afore-mentioned problems as far as possible to happen:
1, before ablactationing 1 week: Should frequency of lactation of pig of drop off young reachs before ablactationing 3 days, reduce a sow to collect appetite, pig of the young before ablactationing in order to increase collects appetite.
2, decrease should stimulate: After ablactationing, the sow leaves delivery room, young pig still keeps 1 week in delivery room; Before ablactationing, the successive of young pig ration after, undertake interim replacing slowly, dyspeptic sex diarrhoea appears after be being fed with avoiding young pig to collect.
3, inside day of the 3-5 after ablactationing, pig of proper control young animal collects appetite, prevent surfeit to cause indigestion. Raise feeds a principle with a few add frequently give priority to, those who maintain feed is fresh degree, at the same time in case the mildew after feed is bibulous changes or the bacterium is polluted, every time it is OK that the rest feed should be swept in time raise feeds a sow
4, temperature of operating ring condition. After ablactationing 1 week inside, microenvironment is due heat preservation area, temperature not under 27 ℃ . Make sure young pig is surroundings cleanness, wholesome, without sewage, poisonous and harmful gas does not exceed bid. The setting lies board, lest be affected with damp be affected with damp.
5, ablactation around should offer enough and clean sanitation to water.
