What are found in the nucleus of an atom?

proton and neutron

Explanation:

protons and neutrons are found in the nucleus of an atom.they make up a majority of the mass of an atom. in fact, the mass number of an element is the sum of its protons and neutrons.

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.