It is the process of selecting the best individuals in the herd for breeding, looking at their performance in various characteristics e.g. litter size, growth rate, feed conversion ratio, disease resistance etc.

The process of removing the individuals that do not perform well

This kind of breed has yellow-red plumage, black wing and tail feathers, single comb and red earlobes and with shank that are slate in colored.

This native chicken is usually black in color, tail is black with some white feathers at the base, long-legged, stands upright, with yellow to gray shank and with rose combs with bright red ear lobes

This native chicken is ususally black and red colors, heavy breeds, used as fighting cocks and with some features are similar to Paraoakan

This native chicken has dull yellow-gold color with dark brown marking outlining the neck feathers while shanks are either gray or black in color

Here is the list of other strains native chicken except;

Exotic Breeds/Strainsmincludes the following except;

Are systems of mating animals used to produce a purebred or a crossbreed.

The system of __________ is particularly important in poultry improvement in the use of the correct system can greatly increase production.

Breeding of closely-related animals. This is done to purify the bloodline of the animals since the similarity of the animals within the group is increased. Strong and weak points of the animals will be exposed under this system.

Continuous inbreeding is not recommendable due to its negative effect on the production performance of the animal.

Inbreeding usually increases vigor because it brings together the recessive genes with undesirable effects in the resulting crossbreed.

Effects of inbreeding, if not properly done includes the following except;

A system of breeding wherein animals of the same breed, resulting in the production of purebreds. This is done to maintain the production, supply of the breed.

Father x daughter is an example of;

Son x mother is an example of;

Brother x sister is an example of;

Kabir x Kabir is an example of;

Sasso x Sasso is an example of;

Mating purebred individuals of the same breed. The progeny has a different genetic makeup.

The major objective of pure-breeding is to identify and propagate superior genes for use in commercial production primarily in crossbreeding programs as well as to propagate and identify superior females for maintaining valuable genetic material.

It is a system of breeding wherein an inferior breed is improved by continued crossing. It is commonly used among native breeds. The native breeds are usually crossed with exotic breeds.

Female local breed x Male purebred is an example of;

AB X B

One of the formulas being followed in;

ABB X B

Is one of the formulas followed in;

Breeding of two animals from different breeds.

Crossbreed animals grow faster than the purebred parents.

Crossbreeding is beneficial. It produces good stock, but it is expensive. Those who use this system of breeding obtain the following advantages in their animals except;

CROSSBREEDING CAN STILL BE DIFFERENTIATED AS FOLLOWS EXCEPT;

An example of two-way cross-mating with the use of 2 different breeds.

An example of a three-way cross-mating with the use of the three different breeds

An example of four-way cross-mating with the use of four different breeds.

The sole purpose of cross breeding is to take advantage of the observed improvement in performance of the progeny above that of either parent. This is known as hybrid vigour or heterosis.