Animal Husbandry - Study Mode

[#256] Separating calf from its mother is called
Correct Answer

(B) Weaning

Explanation

Solution: Separating calf from its mother is called Weaning. Weaning is the process of gradually introducing an infant human or another mammal to what will be its adult diet while withdrawing the supply of its mother's milk. Two-step weaning is used to wean off beef calves from their dams over the space of a couple of weeks. With this method the calf is fitted with a nose flap that prevents suckling for some time, after which the calf is separated from the dam preventing contact.

[#257] Lucerne hay contains % TDN
Correct Answer

(D) 50%

Explanation

Solution: Lucerne hay contains 50% TDN. Total Digestible Nutrients (TDN) is the sum of the digestible fiber, protein, lipid, and carbohydrate components of a feedstuff or diet. The TDN value represents utilizable energy content of a feedstuff and it is calculated as the sum of digestible carbohydrate + 2.25 × digestible lipid + digestible protein.

[#258] The sugar of milk is called
Correct Answer

(A) Lactose

Explanation

Solution: The sugar in milk is called Lactose. Lactose is a disaccharide sugar synthesized by galactose and glucose subunits and has the molecular formula C 12 H 22 O 11 . Lactose makes up around 2 - 8% of milk (by mass). The name comes from lac (gen. lactis), the Latin word for milk, plus the suffix -ose used to name sugars. The compound is a white, water-soluble, non-hygroscopic solid with a mildly sweet taste. It is used in the food industry.

[#259] Which of the following will be the number of chromosomes in the sperm of a Sahiwal bull?
Correct Answer

(A) 30

Explanation

Solution: The number of chromosomes in the sperm of a Sahiwal bull is 30. The Sahiwal originated in the dry Punjab region which lies along central Punjab. Sahiwal bulls have demonstrated the ability to sire small, fast-growing calves, noted for their hardiness under unfavourable climatic conditions. A bull's sperm has 30 chromosomes, including one which is either an X- or a Y-chromosome whose genes code for sex.

[#260] Initiation of milk secretion is called
Correct Answer

(A) Lactogenesis

Explanation

Solution: Initiation of milk secretion is called Lactogenesis. Lactogenesis is the process of developing the ability to secrete milk and involves the maturation of alveolar cells. It takes place in 2 stages that are secretory initiation and secretory activation. The process naturally occurs with all sexually mature female mammals, although it may predate mammals. The chief function of a lactation is to provide nutrition and immune protection to the young after birth.