A5. Feeding and Nutrition of Pregnant Sows Flashcards
1
Q
Length of pregnancy
A
Length of pregnancy; 0-114 days
Insemination 210 days –> farrowing (+50kg)
Optimal at insemination
220-230 days of age
140-140kg bw, BCS 3
2
Q
Pregnancy requirements can be divided into 3
A
- Maintained
Depends on BW and the environment - Fetal growth
Count on the 3rd trimester - Maternal weight gain
Best at 1st pregnancy, then it will decrease
3
Q
Required BW and back fat thickness at the beginning and at the end of pregnancy
A
Beginning;
- 140-140kg bw, BCS 3
- min, 16/18- 20mm P2 backfat thinkness
End- 18-22
4
Q
Aim of feeding, feeding phases,
A
Flush Day 0-3 --> dec feeding 1month---> reack BCS week 5 to 12 maintainance last month --> inc, a little
5
Q
Protein, energy
A
DE: 14 MJ, P: 13%, lysine; 0.6%
Begin –> end; 18-20mm
- Optimal 1.8kg–> 2.4 kg
6
Q
Fibre contents of the pregnant sow diet
A
High level of high digestible fibres (e.g. beetroot pulp
7
Q
Suppliments
A
• Low electrolyte balance. CaCl Q-3 fatty acids. Flavours laxitiatives - magnesium sulphate at 0.75-1 %, or potassium chlo- rate at 0.75 %.
