This extraordinary quantity is equivalent to the production of 4.3 rabbits over the course of a year. The cost for maintaining laying hens are also lower than those for mammals such as rabbits [20]. Therefore, egg yolk offers a more hygienic, cost-efficient, convenient and rich source of ...
A hen can be considered as a small "factory" for antibody production. One hen can produce more than 22.5 g of total IgY per year of which 2 to 10 % are specific antibodies [14]. This extraordinary quantity is equivalent to the production of 4.3 rabbits over the course of a year. The...
Number of days to “X” animal $ cost/unit weight gain % of yield of target size product (shrimp tails, fillet, etc.) $ profit/unit production biomass Return on investment Cycles per year $ of feed/unit weight of $ of feed/$ of biomass Total harvest biomass production % of animals in...