نتایج جستجو برای: 14 and 21 days of age decreased daily weight gain and feed intake significantlyp

تعداد نتایج: 24167069  

Journal: :پژوهش های علوم دامی ایران 0
مهدی ناقوس عباس پاکدل رسول واعظ ترشیزی

in order to evaluate the effects of ascites on blood gas parameters and internal organ weights, 335 broilers related to parental lines was studied. one hundred sixty-one male broilers and one hundred seventy-four females selected randomly and studied under two treatments of control and ascites. at 54 days of age, body weight and body weight gain, feed intake and feed conversion rate between the...

ژورنال: علوم آب و خاک 2003
رامین بهادران, , سید سعید تدین‌فر, , عباسعلی قیصری, ,

In order to study the nutritive value of grades 1 and 2 wheat feed screening and macaroni wastes as energy resources, 360 21-day-old broiler chicks were divided into 36 groups of 10. In this experiment, each experimental levels of feedstuff was used at 0 (control group), 15, 30 and 45%. In addition, their apparent metabolizable energy (AMEn) was determined by Sibbald’s method. Daily feed intake...

2007
Alison L. Smith Timo V. Serenius Tom J. Baas

Materials and methods: A total of 2467 crossbred barrows and gilts from 339 litters produced in a commercial multiplication herd were randomly allocated to pens by weaning age. Average weaning-age treatments were 15 days (14, 15, and 16 days) and 20 days (19, 20, and 21 days). To evaluate the effect of weaning age on nursery-pig performance, average daily gain (ADG), average daily feed intake (...

Journal: :دامپزشکی 0
شعبان رحیمی استاد گروه علوم طیور، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران دانیال فرهادی داش آموخته کارشناسی ارشد گروه علوم طیور، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران احمد رضا ولیپوری داش آموخته کارشناسی ارشد گروه علوم طیور، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران

this study was carried out to evaluate the impacts of organic (sel-plex® selenium yeast) and inorganic (sodium selenite) selenium and vitamin e (d1-α-tocopheryl acetate) on performance and carcass characteristics in broiler chickens. the effect of two types of house temperature and six treatments of feed additives were investigated in a 2×6 factorial experiment at 56 days period with 960 commer...

Journal: :iranian journal of applied animal science 2013
a. emami a. zali m. ganjkhanlou a. hozhabri a. akbari afjani

this study was performed to determine the effects of different levels of chromium methionine (cr-met)supplementation on growth performance, meat oxidative stability and ruminal metabolites in male kids. thirty-two male mahabadi goat kids, with an average initial body weight (bw) of 22 ± 2 kg at 4 months of age, were allocated in a completely randomized design with four treatments: control witho...

E. Nasirifar E. Rezvannejad,

The current study was conducted to identify the quantitative trait locus (QTL) for the body weight at age 1, 7, 14, 21 and 28 days and daily gain at age 0-1, 1-2, 2-3 and 3-4 weeks, slighter carcass weight and tonic immobility in Japanese quail. Two divergently lines of wild and white Japanese quail which maintained in the Animal Science Research Center of the Shahid Bahonar University of Kerma...

Journal: :علوم دامی 0
دلنیا احمدپور دانش آموخته گروه پرورش و مدیریت طیور، دانشکده کشاورزی دانشگاه تربیت مدرس محمد امیر کریمی ترشیزی استادیار گروه پرورش و مدیریت طیور، دانشکده کشاورزی، دانشگاه تربیت مدرس فرید شریعتمداری استاد گروه پرورش و مدیریت طیور، دانشکده کشاورزی، دانشگاه تربیت مدرس

recent experiment was performed in order to determine effects of dietary l-threonine supplementation levels in japanese quails’ diets on performance, reproductive and internal organs and feathers growth. one hundred and forty four, 1-d old japanese quails, have been selected and randomly distributed between six treatments and four replicates. basal experimental ration was based on wheat, withou...

ژورنال: علوم آب و خاک 2006
جواد پوررضا, , عبدالحسین سمیع, , حمیدرضا رحمانی, , محمدجواد آگاه, ,

This experiment was carried out to determine the effects of different levels of (Kabuli) chickpea grains with different processing methods on the performance of broilers. In a factorial experiment with completely randomized design, 576 Rose broiler chicks were divided into 16 treatments with three replications of 12 chicks each. The first factor comprised three levels of chickpea (10, 20 and 30...

جواد پوررضا, , عبدالحسین سمیع, , حمیدرضا رحمانی, , محمدجواد آگاه, ,

This experiment was carried out to determine the effects of different levels of (Kabuli) chickpea grains with different processing methods on the performance of broilers. In a factorial experiment with completely randomized design, 576 Rose broiler chicks were divided into 16 treatments with three replications of 12 chicks each. The first factor comprised three levels of chickpea (10, 20 and 30...

ژورنال: علوم آب و خاک 2003
عبدالرضا کامیاب, , منصور رضایی, , کاظم یوسفی کلاریکلایی, ,

In a completely randomized design (CRD) experiment with 6 treatments and 4 replicates per treatment, the effect of energy and protein dilution during 6-12 days of age was tested in broilers. Rice hull was used for dilution of energy and protein at levels of 0.05 (control), 10, 15, 20, 25 and 30 percent. The metabolizable energy and crude protein content of the experimental diets were 3089, 2780...

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