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  2. Controlled internal drug release - Wikipedia

    en.wikipedia.org/wiki/Controlled_internal_drug...

    CIDRs are approved for use in both beef cattle and dairy heifers in Canada and the United States. [2] CIDRs contain 1.9g of progesterone in Canada and 1.38g in the United States. [2] The CIDR-S is licensed for use in sheep and goats in New Zealand and Australia. [1] The CIDR-G is also suitable for use in ewes, lambs and goats. [4]

  3. Progesterone devices used in farm animals - Wikipedia

    en.wikipedia.org/wiki/Progesterone_devices_used...

    Controlled Internal Drug Release (CIDR). For use in cattle and buffalo. This is a T-shaped silicone elastomer device impregnated in progesterone (1.38g). It has a ...

  4. Intensive animal farming - Wikipedia

    en.wikipedia.org/wiki/Intensive_animal_farming

    As of 2009–2010 it is estimated that there are 1.3–1.4 billion head of cattle in the world. [47] [48] Diagram of feedlot system. This can be contrasted with more traditional grazing systems. The most common interactions with cattle involve daily feeding, cleaning and milking.

  5. Domestic sheep reproduction - Wikipedia

    en.wikipedia.org/wiki/Domestic_sheep_reproduction

    The ability to control the estrus cycle is much easier today because of products that safely assist in aligning heat cycles. Some examples of products are PG600, CIDRs, Estrumate and Folltropin V. These products contain progesterone which will bring on the induction of estrus in ewes (sheep) during seasonal anestrus.

  6. Feed conversion ratio - Wikipedia

    en.wikipedia.org/wiki/Feed_conversion_ratio

    Feed conversion ratio (FCR) is the ratio of inputs to outputs; it is the inverse of "feed efficiency" which is the ratio of outputs to inputs. [2] FCR is widely used in hog and poultry production, while FE is used more commonly with cattle. [2]

  7. Livestock dehorning - Wikipedia

    en.wikipedia.org/wiki/Livestock_dehorning

    Arguments against dehorning include the following: Dehorning (removing fully grown horns) without the use of anesthesia is extremely painful to the animal. [8] A 2011 study that surveyed 639 farmers found that 52 percent of farmers reported that disbudding caused pain lasting more than six hours, that only 10 percent of the farmers used local anesthesia before cauterization, 5 percent provided ...

  8. Grazing fee - Wikipedia

    en.wikipedia.org/wiki/Grazing_fee

    Various formulas are used for calculating grazing fees on public lands. Some examples are: For federal rangelands of the United States, the grazing fee "equals the $1.23 base established by the 1966 Western Livestock Grazing Survey multiplied by the result of the Forage Value Index (a derived index of the relative change in the previous year's average monthly rate per head for pasturing cattle ...

  9. Feedlot - Wikipedia

    en.wikipedia.org/wiki/Feedlot

    Cattle feeding on a large scale was first introduced in the early 60's, when a demand for higher quality beef in large quantities emerged. [24] Farmers started becoming familiar with the finishing of beef, but also showed interest in various other aspects associated with the feedlot such as soil health , crop management, and how to manage ...