A16. Feeding and Nutrition of Lambs and Growing Sheep

Question 1

Lamb rearing methods, age and BW of lambs at weaning

Answer 1

Birth weight; 4 kg (2.5-6kg)
Age of weaning (30-40 days)
BW at weaning: 12-15 kg

Methods;
Natural
Early
Artificial

Question 2

DM, protein and fat content of the ewe milk,

Answer 2

200 g/kg dry matter, including 80 g milk fat, 60 g milk protein, 50 g lactose,
o 10 g minerals.

Requirement of 1 kg of ewe milk :
 6.0 MJ NEm, 130 g protein,
 4.0 g Ca, 2.5 g P, 2 g NaCl

Requirement of MP: milk protein content (g/kg milk)/0.65
 For l kg milk: 60/0.65 = 92 g MP

 In the case of twins: more milk by 20-80%.

Question 3

Lamb fattening methods:

Answer 3

1. Fattening of suckling lambs:
2. Fattening of express broiler lambs:
3. Growing lambs of high body weight:

Question 4

Length of the fattening, BW gain, final BW;

Answer 4

Week 8-9 (14-18 kg body weight)

At Weaning: 35-42 days (body weight: 10-13 kg);
Age of 120-130 days: 28-35 kg BW
supplement
2-3% urea, supplementation of Ca with CaCO3 , Ca:P = 2:1), to meet the demands of high growing rate of these animls
o Daily weight gain: 200-350 g.

40-50 kg of body weight at weaning
Weaning of 3 months of age.