نتایج جستجو برای: shell thickness st and shell yield sy were between 009 sy to 041 ew heritability of internal egg quality traits consisting yolk weight yw

تعداد نتایج: 24753795  

Journal: : 2021

Internal and external quality characters of poultry eggs are quitely important to determine egg weight. Also, the is for both hatching production. The purpose this study was modelling weight with MARS (Multivariate Adaptive Regression Splines) method using inner outsider in Lohmann LSL Classic white hybrit flock. For purpose, hybrid flock (n=60) were used. Weekly yields evaluated from 22nd week...

2016
Jessy Bagh B. Panigrahi N. Panda C. R. Pradhan B. K. Mallik B. Majhi S. S. Rout

AIM The present study was conducted to evaluate the performance of gray, brown, and white varieties of Japanese quail (Coturnix coturnix japonica) with respect to body weight, egg production, and egg quality traits in the coastal climatic condition of Odisha. MATERIALS AND METHODS A total of 500-day-old straight run Japanese quail chicks of three varieties, viz., gray, brown, and white were r...

رضایی, منصور, سیاح زاده, هادی, فقیه‌عبدالهی, محمد,

     Broken rice (BR) is one of the important by-products of rice production, which is produced in large scales in northern provinces of Iran. An experiment was conducted to investigate the effect of different levels of BR on egg quality and performance of laying hen, with 5 levels of BR (0, 10, 20, 30 and 40%) in a completely randomization design (CRD) on 90  Hy-line W36 egg-type laying hens f...

هاشمی, سیدمحمد, پوررضا, جواد,

This experiment was carried out to study the effects of different levels of vitamin C (0, 150, 300 and 450 ppm) and cage density (3, 4 and 5 birds) on performance and egg shell quality of laying hens under high environmental temperature. In a completely randomized design with 3 × 4 factorial arrangement, one hundred and ninety two (192) 25 week white leghorn hens were divided into 48 replicates...

Journal: :علوم دامی ایران 0
مجتبی زاغری هادی سیاح زاده علیرضا جعفری اروری سمیه نظافتی احمد حسن آبادی محمد حسین شهیر روح اله گایکانی

the present study was carried out to investigate the replacement of soybean meal by different levels of canola meal (either with or without canola meal undergoing heat processing). two hundred forty commercial layer hens (lsl strain) at 54th week of age, selected based on the same egg production percentage and body weight. the experimental design was a crd, in a factorial arrangement of 4 repli...

2011

This study aimed at evaluating the effect of dietary calcium levels and the replacement of calcium sources with different particle size compositions on the performance and egg quality of brown layers in their second egg production cycle. A randomized block experimental design was applied with 12 treatments in a 3x4 factorial arrangement: three calcium levels (2.6, 3.2, 3.8 %) and four combinati...

Journal: :پژوهش های علوم دامی ایران 0
سید علی حسینی سیر علی اصغر ساکی محمد مهدی طباطبایی حسن علی عربی احمد احمدی نرگس آشوری

to determine the effect of hen age and storage condition on egg quality, fresh eggs were sampled from two commercial flocks of white leghorn hens at 28 and 68 weeks of age. half of sampled eggs from each flock were stored at 6°c and the other half was stored at room temperature. fifteen eggs were randomly sampled from each treatment following collection and at 5-day intervals to 30 days of stor...

Journal: :علوم دامی ایران 0
سودابه مرادی پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کارشناسی ارشد محمود شیوازاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، استاد احمد زارع شحنه پردیس کشاورزی و منابع طبیعی دانشگاه تهران، استاد سید احمد میرهادی عضو هیأت علمی مؤسسه تحقیقات علوم دامی کشور

this trial was conducted to evaluate the effects of different dietary factors that affect egg cholesterol concentration in laying hens of 56 to 70 weeks of age. three hundred and ninety six hy-line w36 laying hens were subjected to 11 experimental treatments, each treatment consisting of 4 replicates, each replicate of 9 hens. dietary treatments included the control, made up of corn plus soy me...

2005
Tarek M. Shafey

Eggs obtained from 46 and 42 weeks old meat (Hybro) and layer (Leghorn) breeders flocks, respectively were used to examine the effects of genetic type of birds and egg size (small, medium and large) on variables of eggshell characteristics and hatchability traits. The variables measured were egg weight (EW), egg surface area (ESA) and eggshell characteristics (shell conductance (EC), per cent s...

Journal: :پژوهش های علوم دامی ایران 0
موسی الرضا باغانی محمد حسین آق خانی

introduction breeding quail and quail egg industrial production because of the high nutritional value of these products has been developing these years. considering the high demand and economical production, further development in the future is predicted. in order to design and effective utilization of the equipment for transportation, separation, packaging and storage, the physical and mechani...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید