Dairy Cattle Breeds Quiz

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Questions and Answers

Where do Jersey cattle originate from?

Jersey

What is the main purpose of Holstein Friesians?

produces largest milk yield

What are the characteristics of Kerry cattle?

rare breed, originates from Ireland, weigh 350-450 kg, black coat, very docile

What is the main purpose of Montbeliarde cattle?

Milk is good for cheese making due to the amount of protein in it Signup and view all the answers

What are the factors affecting milk composition in cows?

Cow breed, age of the cow, lactation stage, and health of the cow (mastitis infection) Signup and view all the answers

What is the recommended method to prevent grass tetany in dairy cows?

Including magnesium in the cow's diet Signup and view all the answers

How can bacterial scour in calves be treated and prevented?

Treated with antibiotics and good hygiene practices Signup and view all the answers

What are the symptoms of viral pneumonia in calves and what can prevent it?

Symptoms: discharge from eyes and nose, coughing, and rapid breathing; Prevention: good ventilation in the shed Signup and view all the answers

What is the purpose of dipping navels in iodine for calves?

To prevent naval ill and ensure the calf's health Signup and view all the answers

What are the components of milk, and how does the composition change with the cow's age and lactation stage?

Components: water, butter, protein, lactose; Composition decreases as the cow gets older and fat & protein content decreases as the milking season progresses but rises towards the end of lactation Signup and view all the answers

What is the significance of target weights for animals in dairy farming?

Meeting target weights ensures efficient production at different growth stages Signup and view all the answers

What are the key stages of the production cycle for dairy cows, and how long is the gestation period?

Production cycle stages: early lactation, mid lactation, late lactation, dried off; Gestation period: 283 days Signup and view all the answers

How does the production of milk occur in dairy cows, and what factors can affect the quality of milk?

Production occurs in the udder alveoli, and factors affecting milk quality include cow's nutrition, health, and hygiene Signup and view all the answers

What are the implications of failing hygiene tests for milk at the creamery?

Fines for the farmer and possible dumping of the milk if quality standards are not met or antibiotics are found in the milk tank Signup and view all the answers

What is mastitis in dairy cows, and how can it be prevented?

Mastitis is an udder infection that causes swelling and pain, and it can be prevented with good hygiene practices Signup and view all the answers

Why is it important to cool the temperature of milk within 30 minutes after collection?

To prevent the milk from going sour and to maintain its quality Signup and view all the answers

Study Notes

Jersey Cattle Origin

Originate from the island of Jersey in the English Channel.

Holstein Friesian Purpose

Primarily used for milk production; known for high milk yield.

Kerry Cattle Characteristics

Small, hardy breed; well-suited to rough grazing conditions; noted for hardiness and longevity.

Montbeliarde Cattle Purpose

Dual-purpose breed; valued for both milk and meat production.

Factors Affecting Milk Composition

Cow's breed, age, lactation stage, diet, health, and environment all influence milk composition.

Preventing Grass Tetany

Maintaining adequate magnesium levels in the diet through mineral supplementation, particularly during periods of lush pasture growth, is crucial.

Treating and Preventing Bacterial Scour

Treatment involves fluid therapy and antibiotics; prevention focuses on good hygiene, colostrum management, and vaccination.

Viral Pneumonia in Calves

Symptoms include coughing, nasal discharge, and respiratory distress; prevention relies on vaccination and good biosecurity practices.

Purpose of Iodine Dipping

Dipping calves' navels in iodine solution helps prevent infection.

Milk Components and Composition Changes

Milk comprises water, fat, protein, lactose, and minerals; composition varies with the cow's age and lactation stage, with fat and protein content generally higher in early lactation.

Significance of Target Weights

Achieving target weights at various stages (e.g., weaning, first calving) is crucial for efficient growth and productive lifespan.

Dairy Cow Production Cycle Stages & Gestation

Key stages include gestation (approximately 283 days), lactation, and dry period; efficient management of each stage is vital for optimal milk production.

Milk Production and Quality Factors

Milk production involves complex hormonal and physiological processes; feed quality, cow health, and milking hygiene greatly affect milk quality.

Implications of Failing Hygiene Tests

Failing hygiene tests can lead to milk rejection, financial penalties, and potential damage to the farm's reputation.

Mastitis Prevention and Definition

Mastitis is an udder infection causing inflammation and reduced milk yield; prevention strategies include good hygiene, proper milking technique, and early detection through regular udder checks.

Importance of Rapid Milk Cooling

Cooling milk to below 4°C within 30 minutes of collection is essential to prevent bacterial growth and maintain quality.

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Description

Test your knowledge of dairy cattle breeds with this quiz! Learn about the origins, characteristics, and uses of British Friesians, Holstein Friesians, Ayrshire, and other popular dairy breeds.