March egg number in inbred and first cross Brown Leghorns
نویسندگان
چکیده
منابع مشابه
epidemiological study of oral and pharyngeal cancers in kermanshah province from march 1993 to march 2006
چکیده ندارد.
15 صفحه اولEgg Production Traits and Egg Quality Characteristics in Black and Brown Plumage Color Lines of Japanese Quail
The present study was conducted to determine egg production traits and egg quality characteristics in black and brown lines of Japanese quail. A total of 500 quails comprising 400 females and 100 males obtained from two breeding centers were raised according to the standard procedure for Japanese quail. They were grouped in according to their plumage colours. Age at first egg-laying has been re...
متن کاملEffects of amino acids on egg number and egg mass of brown (heavy breed) and white (light breed) laying hens.
Different types (light to heavy) of laying hens are used in practice. There are questions about the optimum level of balanced protein (BP) supply in feed for different types of hens. Therefore, a broad range of amino acids intake levels [550 to 800 mg of true fecal digestible (TFD) Lys/hen per d] was tested on heavy (Lohmann Brown Classic) and light (Lohmann LSL Classic) laying hens from 24 to ...
متن کاملEvaluation of different egg quality traits and interpretation of their mode of inheritance in White Leghorns.
AIM The experiment was carried out to evaluate different external and internal egg quality traits and to figure out their mode of inheritance from a set of hierarchically classified data. MATERIALS AND METHODS The data collected from 548 progenies (1 egg from each progeny) of 282 dams mated to 47 sires (1 sire mated to 6 dams) of a White Leghorn flock were used in the present study. Phenotypi...
متن کاملNumber 2 (march)
V is now the value of a reinforcer delivered after a variable delay, where there are n different possible delays to reinforcement. Pi is the probability that a delay of Di seconds will occur on any given trial. Mazur (1984) obtained fairly good predictions if K was set equal to 1, and this value of K will be used throughout this paper. To see how this model can be used to make specific predicti...
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ژورنال
عنوان ژورنال: Heredity
سال: 1953
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1953.2