Vitamin E and aspirin depress prostaglandins in protection of chickens against Escherichia coli infection. Am. J. Clin. Nutr. 34:245-251.LIKOFF R O,GUPTILL D R,LAWRENCE L M, et al. Vitamin E and aspirin depress prostaglandins in pro⁃ tection of chickens against Escherichia coli infection ...
For chickens, 1 IU of vitamin A activity is equivalent to 0.3 mcg of pure retinol, 0.344 mcg of retinyl acetate, or 0.6 mcg of beta-carotene. However, young chicks use beta-carotene less efficiently than older birds. One IU of vitamin D is equal to 0.025 mcg of cholecalciferol (vitamin...
The experiment was conducted in May and June. In the first two weeks, the ambient temperature gradually decreased from 34°C to 24°C. Groups were supplied with feed and waterad libitum. The chickens were fedad libituma starter diet and growth/finishing diet. In the first two weeks, the a...
Results of some studies point towards beneficial effects of additional VE supplementation for broilers or un-matured layer chickens on birds’ immune-competence. For example, supplementation of 150 to 300mg VE/kg to diets for chickens resulted in a 2- to 3-fold increase in log2 antibody titer...
After examination, ataxia, trembling, lateral recumbency, and incoordination were observed in the chickens. The chickens were euthanized, and the tissue samples from their brain, heart, and proventriculus were then collected for microscopic evaluation. According to microscopic studies, non-supportive ...
In experiment 1, cost per egg produced from different protein concentrations can be calculated as follows: Cost per egg = ("Cost of feed per 100 hens per day")/("Number of eggs per 100 hens per day") The calculations show that the cost per egg for di
“Meat [also] prevents [scurvy] because it bypasses theneedfor vitamin C. Vitamin C is required to form collagen in the body… Vitamin C’s role in collagen formation is to transfer a hydroxyl group to the amino acids lysine and proline. Meat, however, already contains appreciable quantities...
The quantum yields are wavelength-independent for lumisterol (Lumi) to previtamin D3 (Pre), provitamin D3 (7-dehydrocholesterol, Pro) to Pre, and tachysterol (Tachy) to Pre. For Pre to Pro and for Pre to Lumi, the quantum yield rises at long wavelengths, and for Pre to Tachy it...
The animal may be a human, a domestic animal such as a dog or a cat, or an agricultural animal, especially those that provide meat for human consumption, such as fowl like chickens, turkeys, pheasant or quail, as well as bovine, ovine, caprine, or porcine animals. For prevention and/...
Coprophagy also plays an important role by providing a more complete absorption of the microbially synthesized vitamins K. Although vitamin K is synthesized in the intestinal tract of chickens, turkeys, and other avian species, it appears too far down the tract to furnish these species with all...