breeder during hybridization experiments. Hence animals with maximum desirable characters should be selected. A group of animals related by descent and with similar characters like general appearance, features, size etc., are said to belong to a breed. Why should we breed animals?
Through animal breeding, improved breeds of animals can be produced by improving their genotype through selective breeding. Objectives of Animal breeding: a. To improve growth rate b. Enhancing the production of milk, meat.
Egg etc., c. Increasing the quality of the animal products d. Improved resistance to diseases e. Increased reproductive rate Methods of Animal breeding: There are two methods of animal breeding, namely inbreeding and outbreeding .
Inbreeding: Breeding between animals of the same breed for - generations is called inbreeding. Inbreeding increases Quality of pearl The pearls obtained are of variable shapes and sizes. They may be white, or cream red or pink red in colour. The spherical pearls of rainbow colour are rarely found.
The best quality of pearl is obtained from marine oysters. Pearl obtained from freshwater bivalves are not as valuable as those obtained from the marine oysters (Mishra, ).