AP State Syllabus AP Board 8th Class Biology Important Questions Chapter 9 Production and Management of Food From Animals
AP State Syllabus 8th Class Biology Important Questions 9th Lesson Production and Management of Food From Animals
8th Class Biology 9th Lesson Production and Management of Food From Animals 1 Mark Important Questions and Answers
From where do we obtain food?
We obtain food from plants and animals.
What are the food items that are obtained from animals?
We obtain milk, meat and eggs from animals.
What is animal husbandry?
Providing food, shelter, protection and breeding of animals is called animal husbandry.
How did man use animals since long time?
Since long time, man used animals not only for obtaining food but also for agriculture, transportation etc.
Why did early man domesticate only some of the animals?
The early man domesticated only some of the animals which provide him food, clothing and the animals which are helpful for agriculture and transportation.
In what way the animals are useful to us?
Buffalo and cow give us milk, hens give us eggs and meat, goats and sheep provide us meat, ox, bulls, donkeys are useful for agriculture and transportation.
What do farmers believe in our country?
In our country farmers believe that animal husbandry is part and parcel of agriculture.
Name the animals that domesticate by the people living in rural areas.
People living in rural areas domesticate animals like cows, buffaloes, bullocks, goats, sheep, pigs, hens, etc.
What is the important issue in Animal husbandry?
Supplying of nutritious food, accommodating clear and hygienic shelters for animals is important issue in animal husbandry.
Where do people rear their cattle in the village?
Generally villagers send their cattle to rear at the places where grass is easily available.
Where do farmers keep their cattle?
Farmers keep their cattle in the sheds.
Name the agricultural practices done by using bullocks and he-buffaloes.
Ploughing and levelling the field farmers use bullocks and he-buffaloes.
How do cattle rearers protect their cattle?
Cattle rearers make fences in the fields at off crop seasons.
How is the milk production effected?
Milk production is effected by viral and bacterial diseases.
In rainy season how are cattle protected from mosquitoes?
Cattle can be protected by covering mosquito nets.
Who will provide treatment and health care for cattle?
Veterinary doctor will provide treatment and health care for cattle.
Name the dangerous disease in cows and buffaloes.
Galikuntu is a common and dangerous disease in cows and buffaloes.
From which disease sheep and goats will suffer?
Sheep and goats will suffer from worm infections (Nattala Vyadhi)
How do our government treats milk production?
Our Government treats milk production as an industry.
How much milk is given by traditional species of cows?
2 to 5 litres of milk per day.
How much milk is given by murra species?
Murra species give up to 8 litres of milk per day.
Name the traditional varieties of cows.
Haryana, Jaferabad, Nagapuri are the traditional varieties which give good quantity of milk.
Name the foreign varieties of cows.
Jersy (England) and Holstein (Denmark).
What is the milk yield from foreign varieties?
They give 8 to 20 litres of milk.
What is pasteurization?
The destruction of disease producing organisms present in the milk. In this process milk is heated at 62° temperature and cooled below 10°C.
In which months milk production is high?
In the months of October and November milk production is high.
Who is the father of white revolution?
Prof. J.K. Korian is the father of white revolution in India.
How is milk secreted?
Milk is secreted from the mammary glands of animals.
Why do people in our country decorate their cattle during festivals?
People believe that cattle are part and parcel of our culture. They treat them as their family members. So they decorate their cattle.
Why do some persons collect bones of dead animals?
because bones are used in fertilizer industry.
What is the use of leather of animals?
Leather of cattle is used in the leather industry.
What is Biogas? How is it produced?
Biogas is produced from the wastes from cattle, home etc. As this is produced biologically, this gas is called biogas used for domestic purposes.
What are Broilers and layers?
Broilers are the hens reared for meat and layers are the hens reared for eggs in poultry.
Name some local variety of poultry varieties.
Aseel, Kadaknath, Chittagang, Longshan, Bursa are the pure local varieties.
What is a poultry?
Production and rearing of hens on a large scale is called poultry.
In which place India is occupied in production of eggs?
India achieved 4th position in the world by producing 41.06 million eggs per annum.
Name the foreign varieties of hens giving meat.
New Hampshire, White plymouth, Rhode island red, while leg horn and Anoka.
What are the major practices in food production?
Animal husbandry, poultry, fish culture, bee culture etc., are the major practices in food production.
In which months the egg prices are high?
During January to April, egg prices are high.
Why egg prices are more in January to April?
This is because of most of the eggs are used for hatching.
What is the temperature for hatchability of eggs?
Hatchability of eggs is generally influenced by 37°C to 38°C temperature.
Write a slogan on nutritional Egg.
“If you want to be healthy person eat egg every day”.
Name the traditional variety meant for fighting.
Aseel (Berisa Kodi) is the Indian traditional variety meant for fighting.
How is hatching done in our rural areas?
Our rural areas, the practitioner hatch eggs by placing them under broody hen.
What is the weight of Emu bird?
The weight of Emu bird is nearly 50 kg.
What is the life span of natural wild varieties?
Natural wild varieties grow fully in 5 to 6 years.
What is the life span of broilers?
Broilers grow fully in just 6 to 8 weeks.
What is Apiculture?
Culture of honey bees (apis) is called Apiculture.
What is the use of honey bee production?
Development of apiculture is not only for honey production but also very much useful for crop pollination.
Which insects are the best pollinators?
Honey bees are the best pollinators of many agricultural crops.
How much honey is produced by Indian honey bee?
Indian honey bee produces 3 – 10 kg of honey.
Which honey bee is produces more honey?
European honey bee produces 25 – 30 kgs of honey per annum.
Name the honey bees present in honey bee colony.
A honey bee colony consists of one queen bee, several thousands of workers and few hundreds of drones.
What is the primary function of a queen bee?
The primary function of a queen bee is to lay eggs.
What is the life span of a queen bee?
The life span of queen bee is two-three years.
What are worker bees?
The sterile females are called worker bees in the hive.
What is the function of worker bees?
They attend to indoor duties during first three weeks of their lives such as secretion of royal jelly feeding of the brood, collecting nectar, pollen and water.
Name the plants that are sources of nectar.
Fruit trees like citrus, apple, guava, tamarind, cultivated fields, crops like mustard, gingelly, wheat, cotton, sunflower.
What are the other products of Apiculture?
Bee venom and bee wax are the other products of Apiculture.
How is bee venom used?
Bee venom is used for the preparation of “Apistincture” used in homeopathic treatment.
What are the uses of bee wax?
The uses of bee wax are production of polish cream, nail polish etc.
Name the parts present in a artificial bee hive.
It consists of floor board, brood chamber, super chamber, top cover, inner cover, frames and entrance rod.
Name the pests and predators that attack honey bee colonies.
Wax moths, wasps, rubber flies, dragon flies attack honey colonies. King crow, Bee eater are more harmful.
How are fish important for us?
Fish constitute an important and rich sources of high quality animal protein.
What are the inland water areas?
Rivers, fresh water and brackish water lakes, reservoirs, tanks, ponds, swamps etc., are the inland water areas.
Name the crustacean fishery.
Prawns, lobsters and crabs together constitute the crustacean fishery.
Name the local varieties offish.
Murrel (Korramenu), Katla (jalla), Katrana (bochalu), rohu (mosu), seer (vanjram) are the local varieties.
Name the marine fish varieties.
Macerel, tuna, saradines are the marine fish varieties.
What are mechanized fishing?
Fishermen catch fish by using machines is called mechanized fishing.
Name some marine fishes which are of high economic value.
Mullets, Bhetki and peral spots, shel fishes such as prawns mussels and oysters as well as sea weed.
What are estuaries?
Brackish water resources where sea water and fresh water mix together are called estuaries.
What is the reason for growing fish in paddy fields?
The reason for this is increasing use of inorganic fertilizers and insecticides in paddy fields.
8th Class Biology 9th Lesson Production and Management of Food From Animals 2 Marks Important Questions and Answers
How do you appreciate the role of poultry to meet the food needs of the present day increasing population ?
- The world is facing the problem of over growth in population.
- To meet the increasing population food needs, poultry is the best suitable option.
- So billion hens are reared world wide for eggs and chicken.
- India achieved 4th position in the world by producing 41.06 million eggs per annum.
- India is placed in 5th position in the production of 1000 million kgs of chicken per year.
- Hence, I appreciate the poultry, in fulfilling the food needs of the society.
“Fish has high nutrition values” said Shravya. Do you support Shravya? Why?
- The meat of fish contains 15-25% of proteins. Hence they are the rich sources of proteins.
- The meat of fish has vitamins like A and D.
- Fishes are the sources for very important fatty acids and unsaturated fatty acids which are very vital in our body’s metabolic activities.
- Meat of fish can be easily digested. It helps in the growth and development.
Name the three Indian Major fresh water crops grown in fish culture.
- Rohu – Labeo rohita:
- Boche – Catla catla
- Erramosu – Cirrhinus mrigala are the three Indian major crop fishes.
8th Class Biology 9th Lesson Production and Management of Food From Animals 4 Marks Important Questions and Answers
This fish is called Tuna. Collect information about availability catching and marketing of this particular fish.
English: Big eye Tuna
Latin: Thunnus obesus
size + weight: Average today about 40 -180 c.m. about 1, 4-130 Kg.
Biggest Angled Fish: 197, 3 kg, 236 cm, Peru, 1957 Russel Lee
Maturity: Size 105 cm, weight 25 Kg., age 3 – 4 years
Maximum: Size 230 c.m., Weight 210 Kg., Age 15 years
Catching: 21% Eastern Pacific
38% Western Pacific
22% Indian Ocean
19% Atlantic Ocean
Catching Methods: Longlining, Purse seining and pole-and-line (by-catch)
Share of all Tuna: 2011 about 10% – 398.000 m.t
Main Production: Thailand, Philippines, Indonesia, Mexico, Venezuela, Ecuador, Colombia, Spain, Italy.
Life cyle: About 7-8
Major Markets: Japan (Sashimi)
Populr Product: Fresh (Whole fish)
Forms: Fresh Fillets (Sashimi)
Write a note on different methods used to store the fish in your area.
- The fish caught should be preserved in chilled conditions.
- After catching the fish, gut is removed. Before transportation, fishes are thoroughly washed in clean and chlorinated waters.
- They are perceived in insulated ice boxes with alternate layers of crushed ice and fishes in 1 : 1 proportion.
- Preservation can also be done by
a) Drying b) Salting c) Smoking d) Canning methods
- Before canning, harmful bacteria like clostridum botulinum must be destroyed.
- Cold storage facility and vans with refrigerated chamber have improved the storage and transport of fish.
Visit a poultry farm of your village. Collect the diseases of poultry and their preventive control measures. Prepare them in theform of a table.
|Diseases in Poultry birds||Casual organism||Precautionary control measures|
|Fowl cholera||Bacteria||Vaccination for fowl cholera is must.|
|Salmonellasis||Bacteria||Antibiotics with sulphur and vaccines.|
|Coryza||Bacteria||Sulfa drugs and antibiotics are necessary.|
|Fowl fox||Virus||They should be separated from the farm.|
|Ranikhet||Virus||Fowls should be separated from the farm and treatment should be given separately.|
Write some diseases of tamed animals.
- Galikuntu is a common and dangerous diseases occur in cows and buffaloes.
- Sheep and goats suffer from worm infections (Nattala vyadhi).
- Some parasitic diseases cause damage to liver and intestine of tamed animals.
- Viral and bacterial diseases also effect on milk production of cows and buffaloes.
These are some examples for diseases in domestic animals.
8th Class Biology 9th Lesson Production and Management of Food From Animals Important Questions and Answers
How are the microorganisms like bacteria killed and how can the milk be preserved at milk chilling centres?
- Pasteurization of milk ensures the destruction of disease producing organisms present in milk.
- In this process, milk is heated at 72°C for 30 minutes.
- Prior to this, the milk was being cooled to below 10°C.
- This process was invented by Louis Pasteur.
Dung is used as biofuel. You know that it is an accessory product. Write about such accessory products produced in animal husbandry.
1. The supplimentary products produced from animal husbandry are meat, dung, leather, bones, horns, etc,
2. Animal husbandry is also contributing to different industries like
- Dairy industry: Milk and milk products are produced.
- Slaughter houses: Production of meat.
- Leather industry: Tanning of leather and making shoes, belts and suitcases, etc.
- Fertilizer industry : Bones of cattle are used in the production of chemical fertilizers.
- Bio gas industry: Cattle dung is used in the production of biogas.
- Toys industry: The horns of cattle are used to make toys and ornamental items.