With regard to animal breeding, which one among the following is not correct?

In animal breeding, inbreeding refers to the mating of more closely related individuals within the same breed for 4-6 generations, not 1-2 generations. This process increases homozygosity and is used to develop pure lines. Option 2 correctly defines out-breeding as the breeding of unrelated animals, which can include out-crossing (mating within the same breed but having no common ancestors for 4-6 generations). Option 3 accurately describes cross-breeding, where superior males of one breed are mated with superior females of another breed to combine desirable traits [c2]. Option 4 is also correct as the offspring of an out-crossing is termed an 'out-cross'. The error in Option 1 regarding the number of generations makes it the incorrect statement. Breeding programs are essential for genetic modification and improving animal productivity to meet human demands [c4].

Sources

1. [1] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 7: Resources > Goat Rearing > p. 36
2. [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 4: BIODIVERSITY > conservation of Biodiversity > p. 27