منابع مشابه
The feeding dynamics of broiler chickens.
Contrary to a commonly held belief that broiler chickens need more space, there is increasing evidence that these birds are attracted to other birds. Indeed, commercially farmed birds exhibit a range of socially facilitated behaviours, such as increased feeding and preening in response to the presence of other birds. Social facilitation can generate feedback loops, whereby the adoption of a par...
متن کاملThe sequential feeding of growing chickens.
1. Male chickens, I week old, were fed alternately for 6 or 12 h periods with diets complementary in their amino acid composition. The isonitrogenous, isoenergetic diets were based on fish meal or sunflower meal as the sole source of protein, or fish meal-sunflower (40:60, w/w); each diet contained 120 g crude protein/kg. Other groups of chickens were given these diets ad lib. 2. Net protein ut...
متن کاملComparison of Multi-Step Phase-Feeding Programs (Eight or Thirteen Steps) with a Commercial Three-Step Feeding Program for Broiler Chickens
Two trials were conducted to study the effect of multi-steps phase-feeding (PF) program on growth performance of broiler chickens from 1 to 24 and 1 to 39 d of age. The control group was the nutrient recommendation of Aviagen (2019) with a three-step PF program (1-10, 11-24 and 25-39 d of age). In the first trial, the control group was compared with an eight-step PF program (PF8), and in the se...
متن کاملFeeding Protected Sodium Bicarbonate Attenuates Hindgut Acidosis in Horses Fed a High-Grain Ration
Hindgut acidosis (HGA) is a common problem in horses consuming either large quantities of grain or fructan-rich forages. Horses suffering from HGA may develop anorexia, colic, or laminitis or display stereotypical behaviors such as wood chewing and stall weaving. Feeding a protected sodium bicarbonate (PSB) is a safe and effective method of attenuating HGA without producing a metabolic alkalosi...
متن کاملEffect of Brain Asymmetry on Learning and Feeding in Chickens
This paper suggests that asymmetry of brain function may have important implications for display patterns and social organisation in chickens. The functions known to be asymmetrically organised in the chicken brain are discussed together with the techniques which have been used to reveal these asymmetries. Hemispheric and eye-eye asymmetries have been demonstrated. The latter are manifest in be...
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ژورنال
عنوان ژورنال: Nihon Chikusan Gakkaiho
سال: 1928
ISSN: 1346-907X,1880-8255
DOI: 10.2508/chikusan.3.50