Careers in biology l field of animal husbandry l horticulture l forestry l farming l 9th class

here i have discussed about careers in biology on 9th level. i.e. animal husbandry, horticulture,forestry and farming.

Animal husbandry is the branch of science deals with the practice of breeding, farming and care of farm animals such as cattle, dogs, sheep and horses by humans for advantages. Animal husbandry refers to livestock raising and selective breeding. It is a branch of agriculture.

Major changes took place in the Columbian exchange when Old World livestock were brought to the New World, and then in the British Agricultural Revolution of the 18th century, when livestock breeds like the Dishley Longhorn cattle and Lincoln Longwool sheep were rapidly improved by agriculturalists such as Robert Bakewell to yield more meat, milk, and wool. A wide range of other species such as horse, water buffalo, llama, rabbit and guinea pig are used as livestock in some parts of the world. Insect farming, as well as aquaculture of fish, molluscs, and crustaceans, is widespread. Modern animal husbandry relies on production systems adapted to the type of land available. Subsistence farming is being superseded by intensive animal farming in the more developed parts of the world, where for example beef cattle are kept in high density feedlots, and thousands of chickens may be raised in broiler houses or batteries. On poorer soil such as in uplands, animals are often kept more extensively, and may be allowed to roam widely, foraging for themselves.

Most livestock are herbivores, except for pigs and chickens which are omnivores. Ruminants like cattle and sheep are adapted to feed on grass; they can forage outdoors, or may be fed entirely or in part on rations richer in energy and protein, such as pelleted cereals. Pigs and poultry cannot digest the cellulose in forage, and require other high-protein foods.


Horticulture is the science and art of the development, sustainable production, marketing and use of high-value, intensively cultivated food and ornamental plants. Horticultural crops are diverse, including: Annual and perennial species, Fruits and vegetables, Decorative indoor plants 

Horticulture is subdivision of agriculture which deals with gardening of plants. Agriculture deals with cultivation of crops and also animal farming whereas Horticulture deals with cultivation only.

A Horticulturist is responsible for increasing yield, improving vigor, size, and taste of plants. They also coordinate research programs for selective crops. Horticulturists must have extensive knowledge about trees, flowers, vegetables, nuts, bushes, and fruits.

Forestry is the science and craft of creating, managing, playing, using, conserving and repairing forests, woodlands, and associated resources for human and environmental benefits. Forestry is practiced in plantations and natural stands. ... Natural water quality management. Recreation

They purify the air we breathe, filter the water we drink, prevent erosion, and act as an important buffer against climate change. Forests offer a home to much of the world's diverse array of plants and animals and provide essential natural resources from timber and food to medicinal plants.

Agriculture started thousands of years ago, but no one knows for sure how old it is.[1] The development of farming gave rise to the Neolithic Revolution whereby people gave up nomadic hunting and became settlers in what became cities.

Agriculture and domestication probably started in the Fertile Crescent (the Nile Valley, The Levant and Mesopotamia).[2] The area called Fertile Crescent is now in the countries of Iraq, Syria, Turkey, Jordan, Lebanon, Israel, and Egypt. Wheat and barley are some of the first crops people grew. People probably started agriculture slowly by planting a few crops, but still gathered many foods from the wild. People may have started farming because the weather and soil began to change. Farming can feed many more people than hunter-gatherers can feed on the same amount of land.

Arable Farming. Arable farming involves growing of crops only in warm climate. ...

Pastoral Farming. ...

Mixed Farming. ...

Subsistence Farming. ...

Commercial Farming. ...

Extensive and Intensive Farming. ...

Nomadic Farming. ...

Sedentary Farming.