VI. The Sow Flashcards
(86 cards)
time interval from weaning to service
dry period
a good sow should come back into heat & be ready for service within ____ days after weaning
3 to 7
signs of poor management practice
- low conception rate
- abortion
- Small litter size at birth & weaning
- Impaired reproduction
Lactation period should only be _____ to shorten dry period
6 weeks
How many times will you check heat occurrence in a day
twice
time during which the sow will accept the boar
heat period or estrus
ovulation takes place ____ after the onset of estrus
40 hours
sperm cell lives only _______ hours in the reproductive tract of female
28 – 48
this stage that conception & early development of the embryo takes place
1st 3-4 weeks
Advantages of early pregnancy detection
- It makes possible to cull or re-breed non pregnant, feed wasting females
- Allows closer grouping of a number of sows for a farrowing period
- It gives early warning for breeding troubles such as infantile boars or cystic ovaries
- enables the producer to make more effective use of his breeding facilities & to plan more adequately for farrowing, nursing & finishing
PREPARATIONS FOR FARROWING
- Prepare the sow
- Prepare the farrowing pen
Preparing the farrowing pen (4)
- Place guard rails to prevent sow from crushing the piglets
- Check water supply
- Place an artificial or supplemental heat for piglets
- Place light and absorbent beddings
SIGNS OF FARROWING
- Nest making (nudging of hurdles, walls & flooring, biting of hurdles & guard rails)
- ‘dog sitting’ position
- Distension & enlargement of udder of the sow
- Enlargement & swelling of the vulva
- Small round size of sow’s manure & frequent urination
- Milk letdown – the sow is to farrow in 24 hours
- Mucous discharge with meconium
- Signs of labor
kg of feed per day given at stage 1
2.0
kg of feed per day given at stage 2
2.0
stage in which we must bring the sow in the right body condition
stage 2
it increases the sow’s capacity to eat a lot of feed which is advantageous later in the lactation period
roughage
kg of feed per day given to the pregnant sow 1 month before farrowing if she is thin
2.5 - 3.0
kg of feed per day given to the pregnant sow 1 month before farrowing if she is fat and want to slim her down
1.5 + 0.5 - 1.0 roughage
roughage can be given as early in stage?
stage 2
kg of feed per day given at stage 3
- 5 (+ 0.5 – 1.0)
kg of feed per day given at stage 4
2.0
kg of feed per day given at stage 5
0
weight of embryo in 30th day
40 grams