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The regular feed conversion ratio, i.e. output fish mass divided by total feed mass. The conversion ratio only taking into account the fish-based component of fish feed, called the FIFO ratio (or Fish In – Fish Out ratio). FIFO is fish in (the mass of harvested fish used to feed farmed fish) divided by fish out (mass of the resulting farmed ...
Total mixed ration (TMR) is a method of feeding beef and dairy cattle. A TMR diet achieves a wide distribution of nutrients in uniform feed rather than switching between several types. A cow's ration should include good quality forages, a balance of grains and proteins, vitamins and minerals. [1]
This approach is based on regression models developed for determining efficiency of feed use for weight gain during a standardized growth trial in growing beef cattle. [3] It was inspired by Koch's observations of the differences in how a maintained body weight and an increasing body weight affect the feeding of cattle.
The efficiency of conversion of ingested food to unit of body substance (ECI, also termed "growth efficiency") is an index measure of food fuel efficiency in animals. [1] The ECI is a rough scale of how much of the food ingested is converted into growth in the animal's mass. It can be used to compare the growth efficiency as measured by the ...
Feed makes up approximately 60% to 80% of the total cost of producing hogs. Manufactured feeds are not merely for satiety but also must provide animals the nutrients required for healthy growth. Formulating a swine ration considers the required nutrients at various growth stages in creating an appropriate feed.
Ethylenediamine dihydroiodide (EDDI) is added to pet food and cattle feed to prevent iodine deficiency. [5] A controversial additive is arsenic, often supplied in the form of the organoarsenic compound called roxarsone. It has been used in poultry production to increase weight gain and improve feed efficiency, and as a coccidiostat.