1) What % of milk is made of water? a) 87.7% b) 85% c) 89% 2) What % of milk is made of butterfat? a) 3.7% b) 3.4% c) 3.5% 3) What % of milk is made of lactose? a) 3.7% b) 4.7% c) 5.7% 4) What hormone is involved in milk let-down? a) Progesterone b) Oxytocin c) Adrenaline 5) Mastitis is caused by a a) bacteria b) fungi c) virus 6) How long after calving does a cow reach her peak lactation? a) 6-8 weeks b) 8-10 weeks c) 10-12 weeks 7) What is the formula for milk payment? a) A + B + C b) A - B + C c) A + B - C 8) Which of the following is not true for colostrum? a) must be fed in the first 2 hours b) give at least 1 litre c) use colostrum for the first feed 9) Contains antibodies, laxative effect and warming effect are all benefits of what? a) Antibiotics  b) Colostrum c) Whole milk 10) High milk yields, & low milk solids are characteristics of what breed? a) Jersey b) Holstein Friesian c) Aryshire 11) Moderate butterfat content, easy calving & longevity are characteristics of what breed? a) Jersey b) Aryshire c) Norwegian Red 12) A dual purpose dairy breed a) British Friesian b) Holstein Friesian c) Jersey 13) Length of oestrous in cows in days? a) 21 b) 23 c) 25 14) Length of gestation in cows in days? a) 280 b) 283 c) 285 15) What is the length of lactation in cows? a) 60 days b) 305 days c) 365 days 16) How long are dairy cows dried off for? a) 60 days b) 70 days c) 50 days 17) What BCS should a cow be at calving? a) 2.5-3 b) 3-3.5 c) 3.5-4 18) Herringbone and rotary are types of a) housing b) parlours c) gates 19) What weight should a calf be at birth? a) 40kg b) 35kg c) 50kg

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