PIg nutrition Flashcards
Why can’t we use high amounts of pea in pig diets to replace soybean
There is an upper limit of 10% because they contain trypsin inhibitors and antinutrient factors
What amino acids should be highest in pig feed
Leucine
Lysine
Then phenylalanine and tyrosine q
What amino acid is the first limiting one in the pig
Lysine
What is the target body condition for sow at farrowing and weaning
Farrowing 3.5-3.75
Weaning 3
Body condition 3 definition
Takes firm pressure with the palm to feel hip bones and spine.
VS 4; can’t feel with palm, VS 5 can’t feel with single finger
How can we encourage food intake in the lactating sow
Keep a cool temperature 16-18*C
Ensure enough water intake
Feed 3 times per day
May restrict the feed in take in the first few days post-farrowing so that they eat MORE in later lactation when it is most needed
What might we do if a sow is very thin at weaning
Wait to mate until the second heat to avoid low piglet numbers in next litter (second litter drop syndrome)
How much to feed sows per day after weaning and then through pregnancy
4kg/day
then during implantation 2.3kg/day
Pregnancy 2.3-2.5kg/day unless litter weight poor before in which case feed more
Drop fown to 2kg/day in week pre-farrowing to reduce mastitis risk
HOw do we alter feeding in later gestation to reduce mastitis risk
Drop down to 2kg/day in last few days
How much protein should sow diet contain
13%
What are pressure sows an indication of
Poor sow feeding management
- Excessive weight loss during lactation so lose subcut fat to cushion body prominences when laying on concrete
What systems do we see more of an issue of thin sow syndrome
OUtdoor since more change for bulying and greater energy requirements
Protein levels in lactating sow diet
High ie 18%
What qualities must we ensure starter creep has
High digestibilty i.e cooked cereals, milk products
Palatable
High in protein and energy
Go for very high protein i.e 22.5% at starter going down to 21% at finisher
Faily weight gain per day generally
700g
