نتایج جستجو برای: egg quality

تعداد نتایج: 792531  

Behroz Dastar Mahmoud Shams Shargh Mousa Reza Rasteh Omid Ashayerizadeh Saeid Zerehdaran

Objective: The experiment was conducted to evaluate the effect of different levels of germinated barley on performance and egg quality in laying hen. Methods: One hundred and twenty laying hens, 44-weeks old, Lohmann LSL hens were used in this experiment. Birds were assigned randomly to the groups, each of which consisted of 20 birds (4 replicate cages each containing 5 birds). The experiment w...

جوانمرد, آرش, باباجانی, صمیم , علیایی, مجید , علیجانی, صادق ,

   One of the main problems of multiple-trait genetic evaluation in poultry breeding is high computing costs. Principal components analysis (PCA) is a method for reducing the number of traits in correlated trait analysis. The aim of the present study was to determine the most effective principal components (PCs) of internal egg quality and some performance traits of Azarbayjan native chickens. ...

رضایی, منصور, شهره, بهرام, صابری فر, طناز , کاظمی فرد, محمد, یوسفی, سهیل,

This experiment was conducted to investigate effects of l-arginine on productive performance and egg quality parameters, blood and hormone parameters of laying hens in late phase of production for 8 weeks. Forty eight Hy-Line W-36 were used in a completely randomize design with four level of l-arginine (1/20=control diet, 1/32, 1/44 and 1/56 percent) and four replicate from 92-98 weeks of age. ...

Journal: :progress in biological sciences 2015
zeinab abdolahnejad mohammad pourkazemi majid reza khoshkholgh

the siberian sturgeon (acipenser baerii) is an economically important species. sturgeon stockassessment during fingerling production is considered to be one of the most difficult phases ofhatchery rearing. the present study investigated the expression of growth hormone (gh)mrna in unfertilized eggs, fertilized eggs, eyed eggs (2 day before hatching), non-viable eggsand newly-hatched siberian st...

Journal: :iranian journal of applied animal science 2015
y. alemayehu m. urge a. getu

the study was conducted at haramaya university poultry farm to evaluate the effects of locally processed fish waste meal (fwm) in the diet of white leghorn layers on the performance and hatchability, egg quality, sensory flavor and profitability of the rations. one hundred eighty chickens at five months of age were randomly distributed (15 layers per each 12 pens). the pens were randomly assign...

2013

This study was carried out to investigate the effect of two housing systems on external and internal egg characteristics of a commercial laying bird. Two hundred and eighty pullet of Nera layers were divided into two even group kept in different housing systems (deep litter vs cage). External and internal egg quality traits were examined at 26, 30, 34 and 38wk. Data were then collected on egg w...

Journal: :Genetics Selection Evolution 2013

Journal: :پژوهش های علوم دامی ایران 0
حسن محمدی عمارت ابولقاسم گلیان عبدالمنصور طهماسبی حسن کرمانشاهی

an experiment was conducted to evaluate the effect of dietary crude protein and lysine levels on quality and quantity of egg production. fifteen diets consisted of 3 levels of protein (14, 15 and 16%) and 5 levels of lysine (0.71, 0.74, 0.77, 0.80 and 0.83 %) in a 35 factorial arrangement were provided. each diet was randomly fed to 4 replicates of 12 birds, during four periods of 4 weeks (28-...

   This study was conducted to evaluate the effects of raw and autoclaved Amaranth grain on the performance and egg quality of layer hens. For this purpose 168 Leghorn laying hens strain Hy-line W36 at 67 weeks of age were allocated in completely randomized design with 7 treatments and 6 replicates of 4 birds. Treatments include raw and autoclaved Amaranth each at 0, 5, 10 and 15%. The egg exte...

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