جستجوی مقالات مرتبط با کلیدواژه « corn germ » در نشریات گروه « علوم دام »

Corn and its byproducts are of the most important products used in livestock and poultry nutrition to supply energy. In order to investigate the effect of different levels of corn germ (high-oil content) on performance and immunological indices of broiler chickens, an experiment were conducted in a completely randomized design with 5 experimental groups, 5 replicates and 30 birds per each experimental unit from 14 to 42 days of age. Experimental groups were included birds received levels of zero (control), 5, 10, 15 and 20 percentage of corn germ in diet., Birds received 10% corn germ in diet showed highest live body weight compared to others on days 21 and 28. On day 42, effects of corn germ level on live body weight, production index and feed cost per kilogram of live body weight was significant (p < 0.05). Lowest production index was observed in group received 20% corn germ (p < 0.05). There were no significant differences in feed intake and intestinal morphological indices including villus length, villus width, crypt depth, villus length to crypt depth ratio between experimental groups. Also, Effects of different levels of corn germ on antibody titers against sheep red blood cell (SRBC), IgM, IgG and white blood cells differentiations were not significant. Based on the obtained result about feed cost per kilogram of live body weight, corn germ can be included in broiler diets up to level of 10 percent during days 15 to 42.

An experiment was undertaken to determine the optimum level of corn germ (high-oil content) in broilers diet. This experiment was conducted in a completely randomized design with 5 experimental groups, 5 replicates and 30 birds per each experimental unit from 15 to 42 days of age. Experimental groups were included birds received levels of zero (control), 5, 10, 15 and 20 percentage of corn germ in diet. During the experiment performance traits, productive index, feed cost per kilogram of live body weight, humoral immune responses and intestinal histomorphology were evaluated. To determine the optimum level of corn germ in diet, technique for order preference by similarity to ideal solution (TOPSIS) and maximizing economic profit method were applied. According to the results, optimum level of dietary corn germ inclusion based on TOPSIS and economic methods were 6.59 and 6.98 percent, respectively.