نتایج جستجو برای: feed intake and feed conversion ratio were assessed at 21

تعداد نتایج: 17246622  

Journal: :journal of agricultural science and technology 0
s. calislar department of animal science, faculty of agriculture, sutcu imam university, kahramanmaras, turky. i demirtas department of animal science, faculty of agriculture, sutcu imam university, kahramanmaras, turky.

in this study, the effects of culban seed (vicia peregrine l.) on live body weight, feed intake, feed efficiency, egg production, egg quality characteristics, egg yolk fatty acid profiles and yolk cholesterol content in laying hens were investigated. the experiment consists of seven treatment groups with ten replications containing one laying hen in each and for 32 weeks old seventy laying hen ...

A. Abbasi M. Ebrahimi S. Hassani S.R. Hashemi,

The aim of this study was to evaluate gastrointestinal microbial population response and performance of broiler chickens fed organic acids and silver nanoparticles coated on zeolite under heat stress condition. In this experiment, 375 one-day old broiler chicks (Cobb 500) were randomly divided into 5 treatments containing 5 replicates with 15 birds in each replicate. Five dietary treatments wer...

The aim of this study was to determine the effect of anthocyanin from roselle (Hibiscus sabdariffa) supplemented diets on growth, survival and body composition of rainbow trout (Oncorhynchus mykiss) for 60 days. Fish were fed 0 % (control), 0.5 %, 1 %  and 2 % anthocyanin extract in complete random design.  Fifteen fish with the same initial weight (14 ± 0. 1 g) were selected and randomly distr...

Journal: :Poultry science 2015
E E Onbaşılar N Ünal E Erdem A Kocakaya B Yaranoğlu

The aim of this study was to investigate the differences in production performance, use of nest box, and external appearance of 2 strains of laying hens kept in conventional and enriched cages. Lohmann Brown Classic (LB, n=532) and Lohmann LSL Classic (LW, n=532) hens were housed from 16 to 73 wk in either conventional cages or enriched cages. Enriched cages had a nesting area, scratch pad, per...

Journal: :چغندرقند 0
علیرضا آذربایجانی آذربایجانی هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان شهاب الدین مشرف هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان اکبر اسدیان هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان

this experiment carried out to evaluate replacing effects of oyster shell (os) with filter cake (fc) of sugar beet industry on performance and quantity and quality of egg in  laying hens .in this trial the filter cake in two physical forms of powder and pellet in  five levels of 0, 25, 50, 75, and 100% replaced for oyster shell. each treatment had 3 replications. the experiment lasted 3 periods...

Journal: :پژوهش های علوم دامی ایران 0
طیبه موسی پور محمد سالارمعینی

this study was conducted to investigate the effects of dietary nigella sativa meal (nsm) on the growth performance, blood parameters, carcass characteristics, egg yolk cholesterol and meat quality in japanese quail. for this purpose 300 one-day old japanese quail chicks in a completely randomized design was used with five treatments in four replicates )containing 15 birds each(. the experimenta...

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...

Journal: :علوم دامی 0
محسن ساری استادیار گروه علوم دامی دانشگاه کشاورزی و منابع طبیعی رامین خوزستان رضا بیضایی دانش آموخته کارشناسی ارشد تغذیه دام دانشگاه کشاورزی و منابع طبیعی رامین خوزستان محمد بوجارپور استادیار گروه علوم دامی دانشگاه کشاورزی و منابع طبیعی رامین خوزستان مرتضی چاجی استادیار گروه علوم دامی دانشگاه کشاورزی و منابع طبیعی رامین خوزستان موسی اسلامی دانشیار گروه علوم دامی دانشگاه کشاورزی و منابع طبیعی رامین خوزستان

in order to investigate effects of partial replacement of starch with neutral detergent soluble fiber (ndsf) on weekly weight gain, feed intake, feed conversion ratio, digestibility and some histopathological changes of rumen, 16 lambs were used in completely randomized design. the experimental period was 70 days. dietary treatments were 1- control (high starch), 2- beet pulp, 18 percent, 3- be...

2009
J. Berres S. L. Vieira E. Nogueira D. M. Freitas M. M. Cortes J. M. Pena R. Barros P. X. Silva F. V. F. Furtado J. A. Meira

This study evaluated live performance, carcass, abdominal fat and commercial cuts yields of broilers fed corn-soybean meal diets with increasing digestible valine to lysine levels from 21 to 42 days of age. One thousand five hundred and seventy-five Cobb vs Cobb 500 male broilers were raised with the same commercial mash feed until 21 days of age. Seven treatments with 9 replications of 25 bird...

2012
Mehmet Bozkurt Kamil Küçükyılmaz Abdullah Uğur Çatlı Mustafa Çınar Metin Çabuk Erol Bintaş

Three levels of boron (0, 30, 60 ppm) were supplemented in practical corn-soybean based starter and grower diets, containing either adequate or inadequate Ca or P. A total of 1,800, 1-day-old sexed broiler chicks were assigned to six dietary treatments and fed with the experimental diets for 42 days. Boron improved the overall feed conversion ratio, but increased body weight only at 21 days of ...

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