Animal Husbandry MCQ Question and Answer | Agriculture MCQ Question

The primary aim of animal breeding is to breed such animals which can produce Qualitative increase in the product and Quantitative increase in the product.
Animal breeding is a branch of animal science that addresses the evaluation (using best linear unbiased prediction and other methods) of the genetic value of livestock.
The scientific theory of animal breeding incorporates population genetics, quantitative genetics, statistics, and recently molecular genetics and is based on the pioneering work of Sewall Wright, Jay Lush and Charles Henderson.

Biological vector of bluetongue virus is Culicoides.
Culicoides Latreille is biological vector of bluetongue virus (BTV), a member of family Reoviridae, genus Orbivirus. About 30 species of Culicoides have been identified as competent BTV vectors worldwide.
Bluetongue virus (BTV) is spread by the bites of Culicoides midges and can infect ruminant livestock such as cattle, sheep, and goats, wild ruminants such as deer, and camelids.

Growth of brucella organisms is favored due to Erythritol.
Erythritol is a four-carbon sugar preferentially utilized by Brucella spp. The presence of erythritol in the placentas of goats, cows, and pigs has been used to explain the localization of Brucella to these sites and the subsequent accumulation of large amounts of bacteria, eventually leading to abortion.

A swayback condition is seen due to a deficiency of Cu.
Swayback is caused by copper deficiency during the prenatal/neonatal period. This condition is caused by bilateral, symmetric loss of myelin in the dorsolateral spinal cord tracts and the cerebral white matter.
It is a disease characterized by acquired copper deficiency which primarily manifests as myeloneuropathy.

The protein content in sheep milk is about 8.5%.
Sheep milk contains 3 times more of this type of protein than goat's or cow's milk which also contributes to better digestibility. The whey protein in sheep milk is very digestible.
The protein content of sheep milk is so high, it is not recommended for babies up to 12 months.

The number of eggs formed from 1 pri oocyte is 1.
An oocyte is an immature egg (an immature ovum). Oocytes develop to maturity from within a follicle. These follicles are found in the outside layer of the ovaries.
One oocyte each cycle will become a mature egg and be ovulated from its follicle. This process is known as ovulation.

Merino developed in France.
The Merino is a breed or group breeds of domestic sheep, characterized by very fine soft wool.
The early origin of the Australian Merino breed involved different stocks from Cape Colony, England, Saxony, France and America and although different Merino strains are bred today in Australia.
It is an excellent forager and very adaptable. It is bred predominantly for its wool, and its carcass size is generally smaller than that of sheep bred for meat.

Roundworm and Trematode are unsegmented.
Worms with round, non-segmented bodies are known as nematodes or roundworms. They are classified in the phylum Nematoda, which has over 28,000 known species.
Trematoda is obligate internal parasite with a complex life cycle requiring at least two hosts. These are unsegmented, leaf-shaped worms that are flattened dorsoventrally. They bear 2 suckers, one surrounding the mouth (oral sucker) and another on the ventral surface of the body (ventral sucker).

Bacteria responsible for the preparation of dahi (curd) is Streptococcus lactis.
Curd may contain a wide variety of bacteria like Lactobacillus acidophilus, Lactococcus lactis, Lactococcus lactiscremoris etc, whereas yogurt contains Streptococcus thermophillus and Lactobacillus bulgaricus.
It is added to milk, the bacterium uses enzymes to produce energy molecules (ATP), from lactose. The byproduct of ATP energy production is lactic acid. The lactic acid produced by the bacterium curdles the milk, which then separates to form curds that are used to produce cheese.

The egg should be candled on 3^rd day of incubation.
Incubated eggs are candled to determine whether they are fertile and, if fertile, to check the growth and development of the embryo. White eggs should be tested for fertility on the third day. Brown shelled eggs on the fifth or sixth day because it is difficult to see the embryo clearly before this time.
Eggs may be candled after 3 days of incubation and every few days thereafter. For best results you should candle eggs in a darkened room or dimly lit conditions. The candler should be held right against the shell at the larger end of the egg where the air sac is located.