Dairy Cattle (Leaving Cert Agricultural Science): Flashcards
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Holstein Friesian milk production characteristics
Holstein Friesian milk production characteristics
Produces highest volume, low solid content (fat & protein)
Jersey milk solid content characteristic
Jersey milk solid content characteristic
Very high solid content (high fat & protein)
Definition of heifer
Definition of heifer
Young female that has not yet had a calf
Oxytocin hormone function in milking
Oxytocin hormone function in milking
Causes muscle contraction for milk let-down
Gestation period of dairy cow (days)
Gestation period of dairy cow (days)
283 days (approx. 9.5 months)
Length of lactation period (days)
Length of lactation period (days)
305 days (approx. 10 months)
Timing of peak milk yield after calving
Timing of peak milk yield after calving
Approx. 70 days after calving
Milk cooling requirement after milking
Milk cooling requirement after milking
4°C within 30 minutes
TBC (Total Bacterial Count) standard per ml
TBC (Total Bacterial Count) standard per ml
Under 100,000 per ml
SCC (Somatic Cell Count) standard per ml
SCC (Somatic Cell Count) standard per ml
Under 400,000 per ml
Most popular dairy breed worldwide
Most popular dairy breed worldwide
Holstein Friesian
Jersey milk solid content level
Jersey milk solid content level
Very high solid content (high fat & protein)
Oestrous cycle duration in dairy cows
Oestrous cycle duration in dairy cows
21 days
Gestation period of dairy cow
Gestation period of dairy cow
283 days
Heifer definition
Heifer definition
Young female that has not yet had a calf
Role of colostrum in calf rearing
Role of colostrum in calf rearing
Provides antibodies for disease protection
Hormone that triggers milk let-down
Hormone that triggers milk let-down
Oxytocin
Duration of lactation period
Duration of lactation period
305 days
Mastitis definition
Mastitis definition
Infection of the udder, reduces milk quality
A+B-C pricing: what does A represent?
A+B-C pricing: what does A represent?
Protein