![]() It has been reported that supplemental chromium has raised the total serum protein and insulin concentrations, whereas reducing the cholesterol blood levels (Gursoy, 2000 Arif et al., 2019). Supplemental chromium in broilers’ diets was found to enhance the insulin activity and increase the glucose uptake by the cells. Total cholesterol and triglyceride proportions of breast and thigh meat were reduced in broilers supplemented with organic chromium at rates of 200 ppb and 400 ppb (Gursoy, 2000). Chromium supplementation can decrease the carcass fat percentage and also decreased the plasma cholesterol level in broilers (Kim et al., 1996). Glucose tolerance factor in the body, which is activated by chromium, is responsible to make the metabolic function of insulin more effective (Arif et al., 2019). The role of chromium in carbohydrate, protein, and lipid metabolism is well documented. Its beneficial effects seem to be greater under stress condition (Borgs and Mallard, 1998). ![]() So, it can be recommended to use Cr-Meth chelate in broiler diets at 100 g/ton to improve the productive performance and reduce the oxidative stress of birds.ĭietary chromium supplementation has been reported to increase the growth rate and feed efficiency, and improve the meat yield and carcass quality with reduced carcass fat in broilers (Toghyani et al., 2006 Samanta et al., 2008). Therefore, chromium can be included in diets of broilers at a rate of 200 to 400 ppb, and the higher concentration was more effective than the lower one. In addition, it increased the carcass yield and reduced the abdominal fat percentage of the birds’ carcass. Supplementation of Cr-Meth increased the total protein level, but reduced the glucose, total cholesterol, and triglyceride concentrations in the blood serum. It was observed that the effects of 100 g/ton Cr-Meth chelate on performance indices, mortality rate, and oxidative stress parameters were better than that of 50 g/ton inclusion rate. The chelated chromium can alleviate the oxidative status of birds by increasing the plasma glutathione peroxidase activity and reducing the serum malondialdehyde level. ![]() Moreover, it reduced the mortality rate of birds. It was found that Cr-Meth improved the body weight, weight gain, feed intake, and feed conversion ratio of broilers. Also, blood samples were taken and analyzed for glutathione peroxidase activity, malondialdehyde, ALT, AST, total protein, albumin, glucose, urea, creatinine, triglycerides, and total cholesterol. At the end of experiment, 10 birds per treatment were slaughtered, and the carcass yield with relative weight of the internal organs was determined. Growth performance indices (body weight, body weight gain, feed intake, and feed conversion ratio) were measured throughout the experiment. This compound consisted of chromium (0.4%) chelated with methionine, and it supply the diets with 200 and 400 ppb Cr for the used levels of 50 and 100 g/ton feed, respectively. The birds were fed the experimental diets containing graded levels of Cr-Meth chelate: 0 (control), 50, and 100 g/ton. The chicks were divided randomly into 3 groups the first group contained 17,000 birds, which used as a control, whereas the second and third groups consisted of 7000 and 10,000 birds, respectively, with 5 replicates per group. An experiment was conducted on 34,000 1-day-old straight-run broiler chicks (Indian River 42.0 ± 0.03) at a commercial farm. This study was conducted to evaluate the dietary effects of chromium methionine (Cr-Meth) chelate on growth performance, oxidative stress parameters, blood biochemistry, and carcass traits of broiler chickens.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |