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The cattle industry takes the position that the use of growth hormones allows plentiful meats to be sold for affordable prices. [24] Using hormones in beef cattle costs $1.50 and adds between 40 and 50 lb (18 and 23 kg) to the weight of a steer at slaughter, for a return of at least $25. [25]
As organic cattle approach market weight, there are two feeding methods that producers most commonly use to deliver beef products to their customers: “grass-fed” and “grain-fed”. In the “grass-fed” program, the cattle continue to eat certified organic grass right up to the time of slaughter. The USDA is currently developing ...
Elk farming has been an industry in the province of Alberta for decades, with a peak of 600 elk farms in the industry's heyday; in 2022, only 134 remained. [1] The Canadian Food Inspection Agency has strictly regulated elk farming due to concerns about chronic wasting disease (CWD), a prion disease that affects elk and other members in the deer family.
Now, scientists want to take the cells that power deer antler growth and figure out how to give that same ability to humans. Deer grow antlers anew each spring. Now, scientists want to take the ...
In 1997, in response to outbreaks of Bovine spongiform encephalopathy, commonly known as mad cow disease, the United States and Canada banned a range of animal tissues from cattle feed. Feed bans in United States (2009) Canada (2007) expanded on this, prohibiting the use of potentially infectious tissue in all animal and pet food and fertilizers.
Molecular genetic studies, especially genome-wide association studies and whole-genome sequencing allow adaptive traits to be linked to genomic regions, genes, or even mutations. For example, horn size, meat quality, gait, and prenatal growth in cattle all have single genes found to be responsible for these phenotypic traits. [25]
Bone meal provides phosphorus and calcium to plants, along with a largely inconsequential amount of nitrogen. [4] The N-P-K rating of bone meal is typically 3–15–0 [5] along with a calcium content of around 12% (18% CaO equiv.), [6] although it can vary quite a bit depending on the source from 1–13–0 to 3–22–0.
The effects of organic zinc sources on performance, zinc status, carcass, meat, and claw quality in fattening bulls has been studied. Livestock Prod. [9] compared a Zn chelate, a Zn polysaccharide complex and ZnO (inorganic zinc oxide) in bull beef cattle, and concluded that the organic forms resulted in some improvement in hoof claw quality.