I thing the biggest problem of poultry feed the mold which grow in some serial ingredent specially corn which cause toxicity and immune suppresion in the bird later.
Feed availability is the greatest problem especially during the dry season for ruminants and both availability and quality for the non-ruminant (poultry) For the ruminant, if the biomass is available even as poor quality hay or agro-industrial by-products, the materials could be treated to improve their quality for the ruminants
Everywhere, the first problem is the quality of the feedstuffs (contamination of the grains with mycotoxins); the second one - a presence of precise data on the full composition of the domestic (not in general) feeds - total chemical composition, amino acids, fattry acids and mineral (micro- and macro- mineral elements).
Its not just availability of feed but also the management practice adopted as incidence of mycotoxicosis and coccidiosis in poultry is very high and with ruminants its the lack of forage as well as high yielding breed of cattle as Holstein cannot survive the high temperature in the tropics
I thing the biggest problem of poultry feed the mold which grow in some serial ingredient specially corn which cause toxicity and mycotoxicosis and immune suppresion in the bird later