Origin of chicken

Credits:Biovision-Infonet

The term poultry refers to domesticated birds kept for meat, eggs and feather production. Domestication of poultry is thought to have started in South Asia, at least 2000 years ago. The Asian Red Jungle Fowl is generally assumed to be the ancestor of the modern poultry breeds, but maybe the first domestication of the fowl took place much earlier in China. Following this domestication various breeds have originated from isolated groups of poultry, partly by adaptation to the various environments or cultivation by man. Today’s poultry breeds are all different based on appearance and performance.

Understand chicken as the animals they are, information on behaviour

Chicken are animals with a coherent social structure. If they are in groups up to 25 animals, they have a pecking order based on strength, but they can recognize up to 100 other hens. They communicate a lot both using body, tail and voice. They are hunted and eaten by many, and a large part of their alertness, communication and behavior is about predators and e.g. warning each other against them. This emphasizes their need for being managed in a calm way. As humans, we should never make sharp, loud sounds or sudden movements, when we are with our chicken. 


They have a wide range of comfort and grooming behavior, such as preening (maintenance of feathers), stretching wings, and keeping themselves clean and well managed. They have a strong incentive for dust bathing, which is a way of preventing attack of external parasites and as such very important for their well-being. They will normally scavenge for feed, both for seeds, greens, vegetables and worms and other small animals. Their search for feed leads to a lot of ground-scratching and pecking, and they have a great need for this type of behavior. They have a need for sleeping and undisturbed resting, and will find the highest point to be protected. Hens can become ‘broody’ which means that they are highly motivated to have chicken, and become very frustrated if they are not allowed to nest building. On the other hand, they cannot be forced to become broody; some breeds become broody more easily than others. They have a strong sense of being mothers and taking care of their small chicken and protect them. 

East African and Kenyan poultry population

Village chicken production systems are mostly based on the local scavenging domestic fowl (Gallus domesticus), which predominates in African villages. 

Kenya has an estimated poultry population of 29 million birds, with chicken forming the largest proportion. Of these 76% consist of indigenous chicken, layers 9 %, and 13% broilers. Other poultry species like ducks, geese, turkeys, pigeons, ostriches, guinea fowls, and quails make up 2 % of the poultry population. Poultry is one of the most important livestock enterprises in rural households where over 70% (24 million) of the country’s population live and derive their livelihood. Indigenous chicken are kept by 90% of rural households while broilers and layers are mainly reared by urban and peri-urban farmers who target the ready market. Other poultry are kept by farmers with special interests.

On average, each household in Kenya keeps about 10 chickens, mainly for domestic consumption. There is a relatively high mortality because of lack of drinking water and disease control, and predators. On average, a farmer loses up to 40 percent of their stock annually due to these easily controllable challenges. With proper management practices indigenous chicken can become very productive and have a very good potential for improving the income of the owners. 

Village chicken systems in rural Africa are characteristically: 

  • an indigenous and integral part of the farming systems, with short life cycles and quick turnovers 
  • low input production systems, the majority free range chicken
  • a means of converting low-quality feed into high quality protein 

Hybrid layers

Hybrid layers are mostly kept near potential markets for eggs (such as cities and towns) where space is limited but readymade commercial feed are easily available. In non-organic farms, layers are often kept in individual battery cages, but organic poultry are always is free range with outdoor access. In Kenya they are often reared in deep litter houses where there is free movement and perches are provided. 

Broilers

Broilers are heavy breeds, often hybrid breeds specially bred for meat production, and bought as young chicks. In organic farms, less fast-growing broilers should be preferred, and they should have outdoor access. Conventional broiler hybrids are very fast growing birds and need specially manufactured feeds and very controlled conditions, and their bones are often weak. These breeds must be discouraged in organic farms, and they should be allowed exercise areas, preferably outside.

Generally, robust and suitable breeds should be chosen in organic herds. It is ethically right to choose animals which can both lay eggs and where the males can be used for meat production. In many industrial countries, the breeds are specific for either egg production or meat production, and this means that e.g. the males from egg producing breeds are killed just after hatching, because they are not good for meat production. This is an ethical dilemma of organic production.

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