Nine multiparous lactating cows averaging 171 days in milk were divided according to days in milk and milk production into three 3×3 Latin squares with three 3-week periods to investigate the effect of rumen degradable protein on milk urea nitrogen. Diets were formulated to provide 3 concentrations of dietary rumen degradable protein (9.8, 10.8, and 11.8% of dry matter), while rumen undegradabl...

Diets deficient in protein often increase food consumption, body weight and fat mass; however, the underlying mechanisms remain poorly understood. We compared the effects of diets varying in protein concentrations on energy balance in obesity-prone rats. We demonstrate that protein-free (0% protein calories) diets decreased energy intake and increased energy expenditure, very low protein (5% pr...

Four treatments were assigned to determine the effects of dietary potential digestible fiber (pdF) and crude protein (CP) levels in mid lactating Holstein cows on milk production and nitrogen efficiency. Sixteen primiparous (n=8) and multiparous (n=8) Holstein cows (body weight (BW)=546±72 kg; days in milk (DIM)=118±50 day) were allocated to one of four diets in balanced randomized complete des...

nine multiparous lactating cows averaging 171 days in milk were divided according to days in milk and milk production into three 3×3 latin squares with three 3-week periods to investigate the effect of rumen degradable protein on milk urea nitrogen. diets were formulated to provide 3 concentrations of dietary rumen degradable protein (9.8, 10.8, and 11.8% of dry matter), while rumen undegradabl...

OBJECTIVE To evaluate the effect of high- and low-protein diets with or without tryptophan supplementation on behavior of dogs with dominance aggression, territorial aggression, and hyperactivity. DESIGN Prospective crossover study. ANIMALS 11 dogs with dominance aggression, 11 dogs with territorial aggression, and 11 dogs with hyperactivity. PROCEDURE In each group, 4 diets were fed for ...

T WO experiments involving 81 litters were conducted to determine the effect of low protein (45 g/day, from corn) and adequate protein (309 g/day, from corn and soybean meal) on reproductive performance of gilts. Gain during gestation was significantly decreased by the low level of protein, but litter size and pig weight at birth were not significantly affected by dietary treatment. Weight loss...

PURPOSE OF REVIEW There has been continued interest in the physiological, nutritional and clinical aspects of low-carbohydrate diets. This review will discuss the effects on appetite regulation, metabolic parameters, body weight and body composition, the role of glycemic index and glycemic load, as well as long-term outcomes. RECENT FINDINGS Low-carbohydrate, high-protein diets appear to impr...

half was casein would provide only 24 mg of phylloquinone Dear Dr. Visek: per kilogram of diet. In addition the 50 mg of menadione would I’m writing to comment on the paper entitled ‘‘Low dietary provide at most the equivalent of only 10 mg of phylloquinone protein impairs blood coagulation in BHE/cdb rats’’ by Chang to bring the total of 34 mg phylloquinone/kg. The fats used in et al. (1997). ...

Many inborn errors of metabolism can be successfully managed by restriction of natural protein intake, with or without special supplements. In some cases, there is a need for clear advice on management during metabolic crisis brought about by illness. Even when medical facilities and ongoing support are on hand, and special products are available and affordable, management of such conditions is...