Studies on Encephalomalacia in the Chick

Stability of .alpha.-tocopherol during alfalfa dehydration and storage

“…alfalfa has been known for many years as an excellent source of vitamin E (Brown, 1953; Cabell and Ellis, 1942) and has, therefore, been used in poultry feeds for the prevention of encephalomalacia in chicks (Singsen et al, 1955), and to increase fertility in laying hens (Jensen and McGinnis, 1956). Recently, there has been interest in the feeding of alfalfa to dairy cows as a source of vitamin E in milk to prevent oxidized flavor (Dunkley et al, 1960).…”

Feedstuffs Anaysis, Detection of N,N'-Diphenyl-p-phenylenediamine(DPPD) in Dehydrated Alfalfa and in Mixed Feeds

“…Osborne and Mendel (8-10) undertook an investigation of the methods of measuring quantitatively the comparative nutritive value of proteins, which they expressed as gains in body weight per gram of protein intake, defined as the protein efficiency ratio. Mitchell has critically reviewed the methods in use for determining the nutritive efficiency of proteins (5).…”

“…The antioxidant Ar, Ar'-diphenyl-/)phenylenediamine (DPPD) helps in the preservation of carotene in dehydrated alfalfa (3). When this chemical is put in poultry feeds at a level of 0.0125%, it protects chicks against encephalomalacia (5). DPPD is used commercially for both the foregoing purposes.…”

Dietary Factors Affecting Experimental Models of Nutritional Encephalomalacia

“…Vitamin (Singsen et al, 1954;Bartov and Bornstein, 1980); synthetic antioxidants (Singsen et al, 1955a;Bartov and Bornstein, 1972); dietary oil (Singsen et al, 1955b); dietary vitamin C (Moran et al, 1975); the age when the chicks were fed the NE-inducing diet (Bubis et ah, 1976); dietary coccidiostats ; products of oxidized lipids in the diet ; and dietary vitamin A (Dror et al, 1980a). Quantitative fluctuations in these factors and others may lead to the variation in the development of NE.…”