Flush feeding is over feeding about 10 days before mating and then limiting food.
Body condition
Nutrition
Fertilisation Rate
Semen quality
mating technique
Stockmanship
Embryo survival
feeding post mating
3.5 body condition score
Vitamins and minerals
Stress
Piglets born
Anotações:
There are usually 9-12 piglets born, with a mean of 11.5. The range is 3-22+
Does nature play a role in still borns as litter sizes are often 15, 16 but there are only 14 teats.
Stillborns
body condition
Anotações:
Piglets have no brown adipose tissue so they struggle to thermoregulate when born.
By utilising body glucose for heat production the piglets are susceptible to hypoglycaemia and hypothermia.
At birth,
Protein = 16% of body content
Glucose = 3-3.8%
Fat = 2%
housing
nutrition
Piglets weaned
pre-wean mortality
10-30% (mean 15%)
milk yield
nutrition
apetite
health status
supplementary piglet nutrition
spacing and size of teats
litters/sow
wean-mating period
empty days
Anotações:
Bottom 1/3 = 53 days
Average = 37 days
Top 1/3 = 26 days
Top 10% = 13 days
nutrition
boar effect
Anotações:
Exposing the gilt/sow to a boar can be used to resync the estrus cycle. Can also mate with a vasectomised male to increase litter size. Aborting the gilt - back in cycle in 96 hours.