sheep Flashcards
Lambs: daily weight gain
200g/1kg milk
of times suckiling
15-20 times in 1st week due to small stomach
Adequate rumination
Week 4-5
Lamb supplements
Vit E and Se (Na-selinate)
Lamb rearing
Natural: > Ewes milk: days 0-90 (14-18kg BW) > Intro. Concentrates + hay: day 15 Early weaning: > Ewes milk: Days 0 -35 (~13kg) >conc + hay intro @ day 10 > By day 90 BW = 35kg Artificial: (Mil replacer) > Day 0-10: 0.5L > Day 11-20: 1.5L > Day 20-35: 2.5L > Intro starter conc and hay @ day 10 and lamb fattener and hay @ day 60
Lamb BW
At birth: 4Kg
35 days ~13kg
60 days ~ 20kg
90 days ~ 35 kg
Express broiler lamb
Weaning at 35 days (13kg)
Day 120: 35kg
Supplement with urea, Ca
Daily weigh gain 200-350g
Growing lambs of high body weight
CF: 15-20%
High level of roughages (pasture, hay)
Flock replacement ewes and rams
Ewe lambs > goal 40-45kg by Dec > 1.2Kg BW grazing, 2.1Kg BW grain Ram lambs > Goal: 150g BW gain/day > Roughage + Concentrates
Sample diet of replacement ewes and rams
- 5Kg moist food
- 5kg hay
- 5kg pea straw
- 2-0.3kg lamb concentrates
Ewe and ram nutrition
Goals: increase reproduction: high proliferacy High milk yield Rearing of lambs produce lambs with high meat
Sheep data
Gestation: 5 months Lactation: 3-4 months Ovarian cycle: 16 days Weaning: > Early: 35 days > Normal: 90 days Lamb birth weight > Single up to 6kg > Twin: up to 4kg > Triplet 2-2.5Kg
Nutrient requirements of Ewes and Rams
Maintenance: DM 2.5-6kg/100g BW Energy: 0.31MJ X W*0.75 > Ewe + ram = NEm > Lamb: NEm+NEg Protein: Wool CP content 80% Minerals: > Ca: 4.4g/100kg BW > P: 3.4/100kg BW > Na: 2g/kg feed Vitamins: > Vit A: foetus implantation > Vit E: Lambs (white muscle disease)
Wool nutrients
Wool Cp = 80%
Energy= width of wool
Protein = length of wool
Others: Carotene, S, Na, Zn, Cu
Weaning ewe
1week before remove meal
1 day before remove meal + water
Flushing
3 weeks before mating
Good quality roughages + 0.4kg conc (oats+rye)
P supplementation: +10%
B-carotene
Steaming up
introduction of meal 6 weeks before lambing
Good quality roughage + 0.2-0.4kg conc (Cp: 14%)
lactation nutrition
CF: 18-23%
BW change 0.5%
Peak lactation 3-4wks after birth
Composition of milk
DM: 200g/kg
Milk fat: 80g
Milk protein: 60g
lactose: 50g
Milk Production
1 lamb: 100-125kg
2 lamb: 20-80% incr
3 lamb: 160-180kg
Metabolic troubles of sheep
Rumen flactulance
Vit E ans Selinium def
Thiamine deficinecy (opithotonus- stargazing)
White liver disease (Cobalt and Vit B12 def)
Acute lactic acid toxicity
Enterotoxaemia (Cl.perferingens D = Pulpy kidney disease)
Pregnancy toxaemia
Milk fever
Urea toxicosis (> 0.4g/kg = Toxic)
Urolithiasis
Metabolic trouble of goat
Abortion: > stress (decreased glucose: Kids produce steroids: estrogenous effect) > or habital (hormonal imbalance) Enterotoxamia Milk fever Urea toxicity Urolithiasis (Bucks) Ketosis Toxic plants (tolerance to tannins)