NEET Biology Enhancement In Food Production Revision Notes

Revision Notes for Full Course Biology: Food

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Enhancement in Food Production

Poultry
 
Poultry includes the birds like chicken (hen), ducks, geese and turkey. Poultry farming deals with the rearing of them for their eggs and meat. it has become an important small scale industry due to
modern need for palatable and nutritive food which it provides in the form of eggs as well as adult animal. An egg laying poultry bird is called layer and the poultry birds groomed for obtaining meat
are called chicken or broilers.
 
Livestock
 
The word livestock refers to the domestic animals kept or dealt in for use or profit. It includes cattle, buffaloes, sheep, goats, pigs, horses, mules, donkeys and camels. The most important of these are cattle and buffaloes.
 
Importance of cattle and Buffaloes: Cattle and buffalo are most important forms of domesticated animals. They are next to land in use for farmers. They are widely used for:
 
(a) Agricultural Operations:
(b) Milk:
(c) Transport:
(d) Manure and fuel:
(e) Leather: .
(f) Glue and gelatin:
(g) Meat:
(h) Hair:
(i) Hybridisation:
 

NEET Biology Enhancement in Food Production Revision Notes

Some Breeds of Indian Cattle

NEET-Biology-Enhancement-in-Food-Production-Revision-Notes 1

Some Breeds of Indians Buffaloes
Apiculture
(1) Apiculture is the science of rearing honeybees for obtaining honey, wax and venom. It is a profitable money-making hobby. It forms a cottage industry, when carried out on a large scale.
 
(2) Three species of honey bees are commonly found in india vig. Apis indica (The small indian bee). Apis florea(The little indian bee) and. Apis dorsata (the giant bee) other important species include Apis milifera (the common European bee.
(i) Honeybee-Apis: Like termites, honeybees are social insects known for producing honey and beeswax, and for living in very highly organized colonies. These feed upon nectar and pollen of flowers, possess “sucking and chewing” mouth parts, and undergo complete metamorphosis. Each colony has its own nest called honeycomb or beehive.
 
(ii) Division of labour and polymorphism: Each beehive harbours a colony of thousands of polymorphic bees belonging to a single family. The polymorphic individuals are of three main types (i) a single queen (fertile female)(ii) one to a few hundred drones (fertile males) and (iii) thousands (upto 60,000) of worker bees (sterile females).
 
(iii) Life History: Queen lays about 2,000 eggs a day. The eggs are laid in the comb, one in each cell. They hatch out into larvae in three days. They are fed on royal jelly for a few days. But the larva which develops into the queen will be fed on royal jelly continuously.During breeding, the queen bee flies in the air along with the males. This phenomenon is called nuptial flight. During nuptial flight the queen copulates with a male Copulation occurs in the air. Then the bees return to the comb and the queen starts laying eggs.
 
(iv) Bee-Hive: Honey bee is one of the few domesticated insects. In modern days bee colonies are reared in artificial wooden boxes for maximum production of honey and wax. The artificial box where the bee colony is maintained and managed is called hive. The place where hives are kept and managed is called apiary.
 
(v) Honey extraction: Honey is stored in combs of super frames. It is extracted from the comb by a simple machine called honey extractor. It has a drum containing a rack inside to hold the super frames. It is made to rotate by a set of two-gear wheels, operated by a handle.The super frames are removed from the hive. The caps of the comb cells are cut off by a double edged knife. Then the frames are fixed in the rack and the rack is made to rotate by operating the handle. The honey is forced out into the drum from the comb cells. From the drum the honey is collected in vessels through an exit present in the drum.
 
(vi) Location of Apiary
(a) The hives should be set, in places where there are plenty of flowering plants.
(b) They should be placed in shady places.
(c) The place should be neat and clean and free from any obnoxious smell.
(d) There should be clean drinking water nearby because each bee colony requires two glasses of water per day for their survival
 
(viii)Chemical composition: Honey contains nearly 80 different substances of importance to human beings. The important chemicals are as follows:It contains a large amount of glucose or fructose.
 
Fisheries
(i) Fishes are a valuable and easily accessible source of food, rich in protein, highly nutritious and easily digestible. By the aquatic animals, they are abundantly available from sea, rivers, lakes, ponds and marshes.

(ii) Classification of cultivable fish species

NEET-Biology-Enhancement-in-Food-Production-Revision-Notes 2

(iii) Culture method: The success in fish culture and the high production of table - size fish through carp culture depends largely on the designing and construction of ponds. The basic principles involved in designing and construction of carp culture ponds are of very specialized nature and vary from region to region depending upon several factors like topography, soil types, water supply etc. The requirements with regard to the designing and construction of fish farm are entirely different from those attributed to agriculture and animal husbandry farms.

 

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Food Concepts and Summary for Full Course Biology

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