Flash Cards

Definitions/ Numbers needed for leaving certificate Agricultural Science

Term Definition
BEEF –
Recommended age at mating
15 months
BEEF –
Recommended body weight at mating
300-350 kg
BEEF –
Gestation
283 days
BEEF –
Oestrus
21 days (18 hours standing heat)
BEEF –
Dental formula
0033
4033
BEEF –
Birth weight
40
BEEF –
End of summer 1
90-100
BEEF –
End of winter 1
200
BEEF –
End of summer 2
275-300
BEEF –
End of winter 2
470-500
BEEF –
Finish weigh
550-750
DAIRY –
Holstein milk produce
5800
DAIRY –
Jersey
3400
DAIRY –
Friesian
5000
DAIRY –
Total Lactation Yeild
Daily Yield at peak X 200
DAIRY –
Dry Period
60 days
DAIRY –
Milk Percentages
Water – 87.8
Butterfat – 3.5
Protein – 3.2
Lactose – 4.7
Minerals – .8
PIGS –
Gestation
114 days
PIGS –
Oestrus
21 days (2-3 days standing heat)
PIGS –
Dental Formula
3143
3143
PIGS –
Bonham weight
1-1.5
PIGS –
Puberty
6 months
PIGS –
Weaners weight
Start 9
End 32
PIGS –
Finish weight
100-140
PIGS –
Creep TEMP
30
PIGS –
Dry Sow TEMP
20
PIGS –
Farrow TEMP
20
PIGS –
Weaner TEMP
24
PIGS –
Fattener
22
SHEEP –
Gestation
147 – 5 months
SHEEP –
Litter size
Vary 1,2,3
SHEEP –
Lamb weight
3-5
SHEEP –
When is flushing
Before mating
SHEEP –
When is Steaming Up
Before giving birth
Signs of good health Animal is alert Has clear bright eyes No discharge in nose or mouth clean sleek coat Clean hind quarters Walks normal Breaths normal
Signs of illness Animal is alone dull eyes Discharge from body No appetite Limping Rapid/ Laboured breathing Cough High heart rate Low levels of production
Describe Colostrum A highly diegestable mineral, full of proteins, fats, & antibodies Works as a lax. Heats up body. Protects body Vital to get at least 2/3kg in 3 to 12 hours
Target weight for calves 40kg at birth 72.5kg start of summer 200kg at winter 300kg at slaughter
Target weight for replacement heifers 40/50kg at birth 72.5kg start of summer 450kg at winter 500kg at spring
Dry period Lasts around 2 months. Used to revive cow and allow foetus to grow, & prevent mastitus.
Diseases – TB Effects all ages Caused by Mycobacterium bovus Highly infectious Zoonose No prevention No cure
Diseases – Contagious Abortion Caused by Brucella Abortis Affect animals abort foetuses at 5-7 months
Diseases – Mastitis Bacterial Diesease in udder Infection through teat canaldue to bad hygiene Swelling of udder Prevention – Hygienic housing, wash the milking machine, replace rubber in machine,clean teats before/after milking, clean hands.
Diseases – Milk fever Lack of calcium due to foetal growth, occurs also during early growth Causes spasms, tremors, separtion, unable to stand. Treated with Calciject Prevent by giving supplements
Diseases – Grass tetany Occurs when animals are first turned onto grass that has low magnesium. Causes spasms and twitching Treated with Magneject. Prevent with mineral supplements


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