Optimization of the effect of para-aminobenzoic acid on eggs of hens with different levels of electrical conductivity by identifying the best fraction of young stock according to the time of chick hatching

Moscow

200 pp.

Optimization of the effect of para-aminobenzoic acid on eggs of hens with different levels of electrical conductivity by identifying the best fraction of young stock according to the time of chick hatching — Fam, Chong Ngia — 1992 — Russian Dissertation Library