Free Livestock and Dairy Management MCQs with Answers

• A. It supplies passive immunity through immunoglobulins
• B. It prevents all digestive diseases throughout life
• C. It replaces the calf's need for milk during rearing
• D. It increases body temperature by stimulating rumination

Explanation: Colostrum contains immunoglobulins that provide passive immunity because the calf is born with limited circulating antibodies.

• A. Washing the animal after every feeding
• B. Using post-milking teat disinfection
• C. Increasing the amount of grain in the ration
• D. Providing drinking water before milking

Explanation: Post-milking teat disinfection reduces the number of disease-causing organisms on the teat skin and helps protect the open teat canal.

• A. Rumen and reticulum
• B. Hooves and tail muscles
• C. Mammary gland and body reserves
• D. Liver and gall bladder

Explanation: A dry period allows mammary tissue to rest and regenerate before the next lactation.

• A. Milk yield peaks immediately before calving
• B. Milk yield falls sharply during the first week in every cow
• C. Milk yield remains constant until the next calving
• D. Milk yield rises after calving and then gradually declines

Explanation: Milk production generally increases after calving, reaches a peak in early lactation, and then declines gradually.

• A. The cow is using body reserves to meet an energy deficit
• B. The cow is receiving more energy than she can utilize
• C. The cow has stopped mobilizing fat after calving
• D. The cow is converting all dietary protein directly into milk fat

Explanation: Early-lactation cows often cannot consume enough feed to meet the energy required for milk production, creating a negative energy balance.

• A. Haymaking
• B. Silage making
• C. Sun drying
• D. Mechanical chopping alone

Explanation: Silage is preserved in an oxygen-limited environment, where lactic acid bacteria ferment soluble sugars and lower the pH.

• A. To prevent the cow from drinking excess water
• B. To eliminate the need for mineral supplementation
• C. To maintain rumination and proper rumen function
• D. To increase milk protein without affecting digestion

Explanation: Effective fibre stimulates chewing and saliva production, which helps maintain rumen pH and normal rumination.

• A. The cow spends more time lying quietly
• B. The cow stops drinking water for the entire day
• C. The cow has a permanent rise in body temperature
• D. The cow stands to be mounted by another cow

Explanation: Standing to be mounted is the most reliable visible sign of oestrus in cattle.

• A. To reduce contamination of milk and udder infections
• B. To increase the fat percentage of every milk sample
• C. To make cows produce milk without a dry period
• D. To replace the need for balanced feed management

Explanation: Clean housing, udders, hands, and equipment reduce bacterial contamination of milk and lower the risk of mastitis.

• A. Restrict water until the calf begins grazing
• B. Offer clean water and starter feed in addition to milk
• C. Feed only mature forage until rumination is complete
• D. Provide antibiotics routinely without signs of disease

Explanation: Clean water supports rumen development and helps the calf consume calf starter, while milk supplies early nutrients.

• A. To reduce the cow's water intake
• B. To increase teat canal closure
• C. To prevent sudden rumen acidosis
• D. To delay the return of ovarian activity

Explanation: A gradual increase allows rumen microbes to adapt to greater amounts of rapidly fermentable feed.

• A. Marked improvement in feed intake
• B. Reduced body temperature with shivering
• C. Increased cud chewing after feeding
• D. Increased respiration rate with panting

Explanation: Panting and an elevated respiration rate are common immediate responses to heat stress as the cow attempts to lose body heat.

• A. They support selection and feeding decisions
• B. They eliminate the need for veterinary examinations
• C. They guarantee a fixed calving interval
• D. They prevent all infectious diseases

Explanation: Individual records help identify productive animals, evaluate feeding responses, and detect changes that may indicate illness.

• A. Withholding water during the first week after calving
• B. Maintaining adequate fibre and controlled concentrate feeding
• C. Providing only finely ground grain before calving
• D. Keeping the cow fasting for several hours daily

Explanation: Adequate physically effective fibre and a carefully managed transition ration help maintain rumen fill and normal gastrointestinal…

• A. When its milk intake is at its highest
• B. When it reaches one week of age
• C. When it consumes sufficient starter feed consistently
• D. When it begins licking the dam's salt block

Explanation: Weaning is based mainly on consistent intake of adequate calf starter, because this shows that the rumen can supply nutrients after milk…

• A. Coat colour distribution
• B. Average horn length
• C. Daily salt consumption
• D. Calving interval

Explanation: Calving interval reflects the time between successive calvings and is influenced by oestrus detection, conception, and pregnancy…

• A. Water supports milk synthesis and helps replace fluid losses
• B. Water permanently increases the butterfat percentage
• C. Water prevents every form of udder infection
• D. Water substitutes for adequate dietary fibre

Explanation: Milk contains a large proportion of water, so adequate intake is essential for maintaining production and replacing fluid losses.

• A. Replacing the entire ration at one feeding
• B. Mixing it in progressively over several days
• C. Offering it only after prolonged fasting
• D. Adding large amounts of grain without roughage

Explanation: Progressive introduction gives rumen microorganisms time to adapt to changes in nutrient supply and fermentation.

• A. To synchronize all cows' ovulation
• B. To increase the animals' mature body size
• C. To detect and limit introduction of infectious diseases
• D. To improve the flavour of their milk

Explanation: Quarantine separates incoming animals while they are observed, tested, and treated when necessary before joining the resident herd.

• A. It allows selective eating of long forage
• B. It prevents all digestive disorders
• C. It eliminates the need for drinking water
• D. It provides a more uniform nutrient intake

Explanation: A total mixed ration combines forage and concentrates so that each mouthful has a similar nutrient composition.