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In animal husbandry, feed conversion ratio (FCR) or feed conversion rate is a ratio or rate measuring of the efficiency with which the bodies of livestock convert animal feed into the desired output. For dairy cows, for example, the output is milk, whereas in animals raised for meat (such as beef cows, [1] pigs, chickens, and fish) the output ...
Residual feed intake (sometimes shortened in literature to RFI) is a resource allocation theory index [clarification needed (what is a "resource allocation theory index"?)] used to calculate the feed efficiency of growing cattle. It was developed by Robert M. Koch in 1963 as an answer to the difficulties of using a feed conversion ratio to ...
Limousin. The Limousin, French: Limousine, is a French breed of beef cattle from the Limousin and Marche regions of France. It was formerly used mainly as a draught animal, but in modern times is reared for beef. A herd-book was established in France in 1886. With the mechanisation of agriculture in the twentieth century, numbers declined.
Cattle feeding. There are different systems of feeding cattle in animal husbandry. For pastured animals, grass is usually the forage that composes the majority of their diet. In turn, this grass-fed approach is known for producing meat with distinct flavor profiles. Cattle reared in feedlots are fed hay supplemented with grain, soy and other ...
With regard to swine in the State of Idaho, "animal unit" is "a unit of measurement equaling two and one-half (2 1/2) swine, each weighing over twenty-five (25) kilograms (approximately fifty-five (55) pounds), or ten (10) weaned swine, each weighing under twenty-five (25) kilograms. Total animal units are calculated by adding the number of ...
Intensive animal farming, industrial livestock production, and macro-farms, [1] also known (particularly by opponents) as factory farming, [2] is a type of intensive agriculture, specifically an approach to animal husbandry designed to maximize production while minimizing costs. [3]
Greyman steers on the left and in the foreground. Greyman are an Australian breed of beef cattle developed in Queensland in the 1970s, specifically to suit the Queensland environment, by combining the outstanding genetic characteristics of both the Murray Grey and Brahman breeds. These cattle carry between 25% and 75% of Murray Grey blood, with ...
Efficiency of food conversion. 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 ...
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