In investigations upon the alteration of the intestinal microflora of chickens by antibiotics added as supplements to rations, an important problem is the enumeration and identification of the coliform group of bacteria in intestinal contents. The importance of the coliform group in the chick's intestinal contents was demonstrated by Rhodes et al. (1954) in studies upon the vitamin-sparing effe...

This paper examines the potential to use multiple objective programming to reduce nutrient excretion from dairy cows through incorporation of nutrient excretion functions into a ration formulation framework. In a typical ration formulation model, a ration is formulated to minimize cost while providing sucient nutrients to meet the needs of the animal type being fed. To reduce the nutrient load...

Albino rats maintained for 50 to 60 days on rations containing cholesterol, sodium cholate, and thiouracil were found to be highly susceptible to the lethal effects of infection with Mycobacterium tuberculosis. Maximum loss of resistance occurred only when all three components were present in a single ration. A lesser degree of susceptibility resulted from the deletion of one or more of the fac...

12 female and 12 castrate male sheep were allocated to ration. containing dried fermented cassava peels at 0,20, 40 and 60% over a 6 month period to determine the optimum level at which maize could be replaced without any effect on digestibility of rations and liveweight performance. Carcass-and economic characteristics were determined. 40 and 60% fermented cassava peels significantly depressed...

This study aims to determine the effect of addition red ginger flour in ration on performance male quail aged 2-6 weeks. research was conducted at Experimental Field Faculty Animal Husbandry, University HKBP Nommensen, Simalingkar A Village, Pancur Batu District, Deli Serdang Regency. for 6 weeks from May July 2022. used 200 quails. The method an experimental with a completely randomized design...

Previous studies from this laboratory have dealt with the protein, calcium, phosphorus, vitamin D, manganese, zinc, riboflavin, niacin and choline requirements of pheasants (Scott, et al., '54, '58a, '59) . The phosphorus requirements of young Bobwhite quail also have been reported (Scott, et al., '58b). Although many studies have been made on the effects of various levels of salt in rations fo...

One of the fundamental principles of dairy nutrition is the need to formulate rations to maximize energy intake for high producing cows. We have improved our ability to predict dry matter intake (DMI) and can formulate rations for increasingly precise fractions of carbohydrate, but a major limitation to the science of carbohydrate allocation continues to be the unaccounted variability in starch...