Which nutrient is primarily responsible for vegetative growth in plants?
Explanation: Nitrogen is the key macronutrient driving leaf and stem (vegetative) growth. It is a major component of chlorophyll and amino acids.
2
The scientific name of the domestic cattle is:
Explanation: Bos taurus is the scientific name for domestic cattle (European breeds). Bos indicus refers to zebu cattle.
3
Which hormone is responsible for milk let-down in dairy animals?
Explanation: Oxytocin, released from the posterior pituitary, causes contraction of myoepithelial cells and milk let-down.
4
Foot-and-Mouth Disease (FMD) is caused by which type of pathogen?
Explanation: FMD is caused by an Aphthovirus (family Picornaviridae). It is a highly contagious viral disease of cloven-hoofed animals.
5
Which of the following is a Zoonotic disease?
Explanation: Brucellosis is a zoonotic disease transmissible from animals to humans, typically through unpasteurised dairy products.
6
The normal body temperature of cattle is approximately:
Explanation: Normal rectal temperature of cattle is 38.5–39.5°C (101.3–103.1°F). Values outside this range indicate fever or hypothermia.
7
Which part of the ruminant stomach is known as the ‘true stomach’?
Explanation: The abomasum is the glandular, true stomach of ruminants where enzymatic digestion occurs, similar to the single stomach of monogastric animals.
8
NPK in fertilisers stands for:
Explanation: NPK = Nitrogen (N), Phosphorus (P), Potassium (K) — the three primary macronutrients in commercial fertilisers.
9
Vernalisation refers to:
Explanation: Vernalisation is the process by which plants require a prolonged cold period to induce or accelerate flowering, ensuring spring blooming.
10
Which disease of poultry is also known as Ranikhet Disease?
Explanation: Ranikhet Disease is another name for Newcastle Disease, caused by an avian paramyxovirus. It is highly fatal in unvaccinated poultry flocks.
11
Which insect is the vector of Dengue Fever?
Explanation: Aedes aegypti and Aedes albopictus are the primary vectors of Dengue Fever, Zika, and Chikungunya viruses.
12
Integrated Pest Management (IPM) primarily aims to:
Explanation: IPM aims to keep pest populations below the Economic Threshold Level (ETL) using a combination of biological, cultural, chemical, and physical methods.
13
The most common deficiency in dairy cattle causing milk fever is:
Explanation: Milk fever (hypocalcaemia) occurs in high-producing dairy cows around parturition when blood calcium levels drop sharply.
14
Which crop is known as the ‘Golden Fibre’?
Explanation: Jute is called the ‘Golden Fibre’ due to its golden-yellow colour and significant economic importance in Nepal and the region.
15
In veterinary medicine, ‘Mastitis’ refers to inflammation of the:
Explanation: Mastitis is inflammation of the mammary gland, usually caused by bacterial infection. It is the costliest disease in dairy production worldwide.
16
Which of the following is a systemic fungicide?
Explanation: Carbendazim (MBC) is a systemic benzimidazole fungicide absorbed and translocated within the plant, providing curative action.
17
Photosynthesis primarily occurs in which part of the plant cell?
Explanation: Chloroplasts contain chlorophyll and are the sites of photosynthesis, converting light energy into glucose using CO₂ and water.
18
Which livestock species has the largest population in Nepal?
Explanation: Goats are the most numerous livestock in Nepal, widely reared in hill and mountain regions for meat, milk, and income.
19
The test used to detect Tuberculosis in cattle is:
Explanation: The SICCT (comparative tuberculin test) is the standard screening test for bovine tuberculosis.
20
Which gas is primarily responsible for the greenhouse effect from rice paddies?
Explanation: Flooded rice paddies are a major source of Methane (CH₄), produced by methanogenic archaea in anaerobic waterlogged soils.
21
The term ‘Parturition’ in animals refers to:
Explanation: Parturition is the process of giving birth. In cattle it is called calving, in sheep lambing, in pigs farrowing, and in horses foaling.
22
Which crop is a legume that fixes atmospheric nitrogen?
Explanation: Soybean (Glycine max) forms a symbiotic relationship with Rhizobium bacteria in root nodules, fixing atmospheric nitrogen.
23
Anthrax in animals is caused by:
Explanation: Anthrax is caused by Bacillus anthracis, a gram-positive, spore-forming bacterium. It is a notifiable zoonotic disease.
24
Which vitamin is synthesised in the skin when exposed to sunlight?
Explanation: Skin synthesises Vitamin D from UVB radiation — essential for calcium absorption and bone health in both animals and humans.
25
The recommended row spacing for wheat in the Terai region of Nepal is:
Explanation: For wheat in Nepal’s Terai, a row spacing of 18–22 cm is recommended for optimal tillering and grain yield.
