Classic experiments on the distribution of ducks around separated food sources found consistency with the "ideal free" distribution in which the local population is proportional to the local supply rate. Motivated by this experiment and others, we examine the analogous problem in the microbial world: the distribution of chemotactic bacteria around multiple nearby food sources. In contrast to th...

________________________________________________________________________________ Abstract Eggs from a meat-type breeder flock at 29 and 35 weeks of age were used in two trials to investigate the effects of in ovo feeding of carbohydrates (CHO) and high incubation temperature (37.5 vs. 38.5 °C (HIT)) during days 16 to 21 of incubation on hatchability traits, chick weight at hatch as an absolute ...

The feeding diversity of subtidal samples of macroinvertebrates from Ria Formosa was estimated with Shannon Wiener information index and complementary evenness. The results were compared with other commonly used methodologies under the European water framework directive, such as diversity indices, AMBI and ITI. Assuming that in a healthy environment all feeding groups are present, and that no g...

BACKGROUND Oral aversion and feeding disorders occur frequently after long-term feeding via a tube. A rapid home-based tube-weaning programme that provides feeding disorder treatment under medical supervision to overcome oral aversion has been developed. AIMS To describe the results of the 4-10-day rapid home-based feeding tube-weaning programme and to determine the prevalence of food aversio...

A 50 day feeding trial was conducted with White Leghorn (WL) laying hens, 42 weeks old, to determine if feeding of varying levels of aflatoxin (AF), ochratoxin A (OA) or their combinations has any effect on their performance and egg quality parameters. Feeding of T4, T7, T8, T9 and T10 caused significant reduction in feed intake of hens. Hen day egg productions were significantly reduced at all...

 Background: The prevalence of obesity in children is increasing in the world and it has become one of the major health problems. Parents are the first people who have the opportunity to shape childchr('39')s eating experiences and habits, including food preferences, attitudes, and eating patterns. This study was conducted to determine the moderating role of parental feeding styles in relation ...

a pancreatopeptidase (elastase) digest index was devised for a rapid and accurate estimation of protein quality. this index was calculated on the basis of all the amino acids released by an in-vitro elastase digestion, acid hydrolyses of same sample and the residue of enzyme hydrolyzed. the amino acids were determined by thin-layer chromatography. samples used were cooked white kidneybeans, coo...

OBJECTIVES To compare the diet quality and weight status of girls consuming diets meeting the recommendation of the American Academy of Pediatrics for dietary fat with those of girls consuming >30% of energy from fat and to examine relationships between girls' dietary fat intake, mothers' nutrient intakes, and mothers' child-feeding practices. DESIGN Participants were 192 white girls and thei...

We analyzed the stomach contents of 116 individuals belonging to seven fishes species in order to investigate seasonal changes in feeding strategy and how trophic interactions between species affect community structure in an Atlantic rainforest stream in Southeastern Brazil. Oligosarcus hepsetus and Pimelodus sp. consumed fewer items during the winter. Phalloceros caudimaculatus switched feedin...

BACKGROUND Different approaches to measuring physical activity and fatness in youth have resulted in studies reporting relationships ranging from very strong to nonexistent. METHODS The sample comprised 787 boys and 752 girls between the ages of 7 and 16 years. Pedometer-determined physical activity, height, weight, and waist girth measures were taken. RESULTS Significant differences were f...