Based on the water sources of fish production, they are of following two types:
(i) Marine (oceanic) fisheries
(ii) Inland fisheries i.e., fresh water fisheries

Fish is obtained by
(i) capture fishing i.e., catching fishes from natural resources such as lake, river and sea.
(ii) cultivating by using various culture system, called culture fisheries.

(i) Natural cross mating process: In this process, indigenous females are allowed to mate with bull of exotic variety (of other country) having desired character.
(ii) Artificial insemination: In this process, semen is collected from the desired bull and is injected into the vagina of the selected cows during the period of heat (when they are ready to mate).

The methods of irrigation:
(i) Tube wells and
(ii) Canals
(iii) Tanks: These are small storage reservoirs, which intercept and store the run-off of smaller catchment areas.

(i) Higher yield
(ii) Improved quality
(iii) Biotic and maturity duration
(iv) Change in maturity duration
(v) Wider adaptability
(vi) Desirable agronomic characteristics.

Hybridization refers to crossing between genetically dissimilar plants.
Types of Hybridisation:
(i) intervarietal, i.e., crossing between different varieties.
(ii) interspecific, i.e., crossing between two different species of the same genus.
(iii) intergeneric, i.e., crossing between different genera.

Pasturage: The flora/crops found around apiary to collect honey and pollen grains is called pasturage.
Pasturage flora honey bee include mango, coconut, almond, sisham, apple, tamarind, mahua, coriander etc.
Relation with honey production: The quality and the taste of honey depend upon the flora/pasturage around the apiary, from which bees collect the nuclear and pollens.For example, region of Kashmir having almond plant pasturage/flora around apiary produce almond honey that is good in quality, taste and smell.

The Italian species of honey-bee i.e., Apis mellifera for its many good qualities.That are:
(i) gentleness in nature.
(ii) good honey collection capacity
(iii) prolific queen production with less swarming and
(iv) abilities to protect itself from enemies.
(v) they stay in a given beehive for long period.
On the other hand, Apis cerena indica, has comparatively very poisonous sting, irritates very soon and honey collection is comparatively very less.

Broilers: Domestic fowls raised for egg production are called broilers. They are grown upto 6-7 weeks and weighs 700 g to 1.5 kg.
Management: They are fed with protein, fat with vitamin especially vitamin A and vitamin K rich supplementary feed for good growth rate and better feed efficiency. Care is taken to avoid mortality, feathering and carcass quality, hygienic condition etc.
Layers are hens which start laying eggs at the age of 20 weeks. The egg production in commercial layer is 500 days.
Management includes maintenance of temperature and hygeinic conditions in housing, poultry feed, prevention and control of diseases, etc. The layers require enough space, proper light intensity and its duration. Feed with vitamins, minerals and micronutrients also influence hatchability of eggs.

Objectives of mixed cropping are to
(i) minimize risk and
(i) give insurance against failure of one of the crops.
Criteria for selection of the crops for mixed cropping are:
(i) Duration of Crops: Two crops growing together should have different durations for maturity. One should be of long duration and other should be of short duration.
(ii) Growth Habit: One crop should be tall growing and the other be short growing.
(iii) Root Pattern: One should be deep rooted where as other should be shallow rooted.
(iv) Water Need: One component crop should need lesser water than the other.
(v) Nutrient Demand: Component crops should have different nutrient requirements.

The various factors responsible for grain loss during storage are:
(i) Biotic factors: Insects, Rodents (mice), Birds, Fungi, Bacteria, Mites, ect.
(ii) Abiotic factors: Inappropriate temperature, moisture, moisture contents of seeds, dampness of storage godown ect.
The above factors cause loss in weight, degradation in quality, discolouration of produce ect.
Measures for safe storage of grains: 
(i) Drying: Grains to be stored ideally should contain below 9% water content/moisture. When grains are harvested, usually contain 15 to 35% moisture. These freshly harvested grains are dried under the sun and then in shade to reduce the moisture content. Commercially grains are dried by mechanical driers with hot air blowing process.
(ii) Maintenance of hygiene: Grains should be kept in godowns that
(a) are very clean and do not have garbage, refuse, webs etc.
(b) do not have cracks, holes in walls, floor and ceilings.
(c) have clean and fresh gunny bags or are well treated with fumigate or dried under sun.
(d) have earthen pots, if to be used for storage, well cleaned and properly exposed to sun before use.
(iii) Prophylactic treatment: Godowns, gunny bags to be used for storage must be properly treated with fungicides, insecticides and other required pesticides by dusting, spraying or fumigation. Insecticides and fungicides should be mixed with grains that .are to be used for seed sowing.
(iv) Use of improved structures: Structures such as Pusa Bin, Pusa Cubicle, Pusa Kothar and Pant Kuthla can be used for storage purpose.
(v) Treatment of the surface area of the store house should be done by spraying mixture of BHC WP (50%), Pyrethrum (2.5 EC) and Malathion (50 EC) for controlling pests.
(vi) Fumigation of the store houses by chemicals such as aluminium phosphide tablets should be done.

The various factors responsible for grain loss during storage are:
(i) Biotic factors: Insects, Rodents (mice), Birds, Fungi, Bacteria, Mites, ect.
(ii) Abiotic factors: Inappropriate temperature, moisture, moisture contents of seeds, dampness of storage godown ect.
The above factors cause loss in weight, degradation in quality, discolouration of produce ect.
Measures for safe storage of grains: 
(i) Drying: Grains to be stored ideally should contain below 9% water content/moisture. When grains are harvested, usually contain 15 to 35% moisture. These freshly harvested grains are dried under the sun and then in shade to reduce the moisture content. Commercially grains are dried by mechanical driers with hot air blowing process.
(ii) Maintenance of hygiene: Grains should be kept in godowns that
(a) are very clean and do not have garbage, refuse, webs etc.
(b) do not have cracks, holes in walls, floor and ceilings.
(c) have clean and fresh gunny bags or are well treated with fumigate or dried under sun.
(d) have earthen pots, if to be used for storage, well cleaned and properly exposed to sun before use.
(iii) Prophylactic treatment: Godowns, gunny bags to be used for storage must be properly treated with fungicides, insecticides and other required pesticides by dusting, spraying or fumigation. Insecticides and fungicides should be mixed with grains that .are to be used for seed sowing.
(iv) Use of improved structures: Structures such as Pusa Bin, Pusa Cubicle, Pusa Kothar and Pant Kuthla can be used for storage purpose.
(v) Treatment of the surface area of the store house should be done by spraying mixture of BHC WP (50%), Pyrethrum (2.5 EC) and Malathion (50 EC) for controlling pests.
(vi) Fumigation of the store houses by chemicals such as aluminium phosphide tablets should be done.