Neutering Research Paper

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In United States, neuter, both spay and castrate, are highly recommended by many organizations. Therefore 83 percent of dogs are neutered in United States (Trevejo, Yang, and Lund 2011), and the popularity in the United States is increasing. Also, the early-age neutering has increased because it is highly recommended to neuter dogs before their first heat, especially to decreases in the levels of gonadal hormones (Salameri, Bloomberg, and Scruggs 1991). Also high rate is recorded because the animal care and control facilities, where neutering is most frequently performed, neuter puppies as early as 7 weeks of age or before adoption to control pet population. Although neutering dogs is helpful in controlling pet overpopulation, other factors …show more content…

Canine lymphoma is well-researched cancer since it has very similar properties as the non-Hogkin’s lymphoma, a human cancer with rising frequency. One of the research showed that neutered females have a relevantly lower risk of developing thi cancer (Villamil, Henry, Hahn, Bryan, and Tyler 2009). Another concerned tumor is the mast cell tumor (MCT), the most common tumor in canine. Although many studies observed no gender predilection (Monteiro, Boston, and Monteith 2011), in same gender, neutered females showed higher frequency than intact female (White, Hohenhaus, and Kelsey 2011). Two studies on osteosarcoma (OSA) has suggested the neutering to be a risk factor. Neutered dogs developed this cancer at a higher rate than intact dogs (Ru, Terracini, and Glickman 1998). Also, Rottweilers neutered prior to 1 year had 3 to 4 times more risk than intact Rottweilers (Cooley, Beranek, Schlittler, Glickman M, and Glickman L 2002). The last common tumor that connected to female neutering is hemangiosarcoma (HSA). A study on cardiac tumors in dogs found that neutered females had greater than 4 times of risk of developing HSA than intact female (Ware, and Hopper 1995). Also, a study on splenic HAS discovered neutered females had 2 times or more risk of developing HSA then intact females (Prymak, McKee, Goldschmidt, and Glickman

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