منابع مشابه
Effect of egg weight on hatchability and hatchling weight in Fayoumi, Desi and crossbred (Rhode Island Red X Fayoumi) chickens
Aim: An experiment was conducted to determine the effect of egg weight on hatchability, embryonic deaths and hatchling weight of three rural breeds (Fayoumi, Desi and crossbred (Rhode Island Red X Fayoumi) chickens. Materials and Methods: Three different egg weight groups classified into small: (<41g), medium (41-45g) and large (> 45g) were used in the experiment. A complete randomized design w...
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This paper studies performance metrics that are of use in the evaluation of conflict detection and resolution in air traffic management. The metrics studied are conflict probability and incrossing probability, both of which are closely related to the safety criteria used by the civil aviation community. The main contribution of this paper is to develop mathematical characterisations for these m...
متن کاملMITOCHONDRIAL HETEROSIS IN MAIZE1p2
M A N Y hybrids between genetic pure lines in maize exhibit heterosis. The search for the genetic basis of heterosis has been carried on for many years and by many workers. Despite these efforts, an adequate, specific biochemical explanation of heterosis has not been presented. JONES (1952) has noted the interaction of nuclear genes and cytoplasm, as evidenced by differences in reciprocal cross...
متن کاملEffects of Rearing Environment and Strain Combination on Heterosis in Brook Trout
Three strains of brook trout Salvelinus fontinalis (domestic [D], Laval [L], and Rupert [R]) and their reciprocal hybrids were reared from 7 to 21 months of age in three different environments (indoor, constant temperature conditions; indoor, seasonal temperature variations; and outdoor, seasonal temperature variations) to test for the occurrence of heterosis in important life history traits of...
متن کاملEvaluation of Dietary Calcium Requirements in Fayoumi Laying Hens
The experiment was carried out in poultry experimental station belonging to NRC, Cairo, Egypt. A total of 120 Fayoumi layers, 45 weeks old, were randomly divided into four equal groups. Each group included three replicates (10 hens in each). The first group was fed the control diet containing 3.3% gram Ca, whereas, the other three received diets containing 2.8, 2.6 and 2.4% gram Ca, respectivel...
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ژورنال
عنوان ژورنال: Annales de Génétique et de Sélection Animale
سال: 1977
ISSN: 0003-4002
DOI: 10.1051/gse:19770209