نتایج جستجو برای: ross and cobb broilers

تعداد نتایج: 16830516  

P. Farhoomand Z. Hosseinzadeh,

This study was designed to investigate the effects of different levels of Tarragon powder on performance, carcass characteristics of broiler chickens. Two hundred Ross 308 male broiler chickens were randomly allocated into four treatments and five replicates per treatment. At each replicate ten birds were used. Experimental diets were set on the basis of corn-soy-wheat and Ross 308 broiler chic...

P. Farhoomand Z. Hosseinzadeh,

This study was designed to investigate the effects of different levels of Tarragon powder on performance, carcass characteristics of broiler chickens. Two hundred Ross 308 male broiler chickens were randomly allocated into four treatments and five replicates per treatment. At each replicate ten birds were used. Experimental diets were set on the basis of corn-soy-wheat and Ross 308 broiler chic...

Journal: :علوم دامی 0
بهروز دستار استاد، دانشکده علوم دامی دانشگاه علوم کشاورزی و منابع طبیعی گرگان امین عشایری زاده دانشجوی دکتری تغذیه دام دانشگاه علوم کشاورزی و منابع طبیعی گرگان سعید زره داران دانشیار، دانشکده علوم دامی دانشگاه علوم کشاورزی و منابع طبیعی گرگان بهاره شعبان پور استاد، دانشکده شیلات دانشگاه علوم کشاورزی و منابع طبیعی گرگان امید عشایری زاده دانشجوی دکتری تغذیه دام دانشگاه علوم کشاورزی و منابع طبیعی گرگان رضا میرشکار دانشجوی دکتری تغذیه دام دانشگاه علوم کشاورزی و منابع طبیعی گرگان

this experiment was conducted to evaluate the effect of vitamin premix withdrawal from diets containing different energy levels on growth performance and carcass characteristics of broilers subjected to heat stress in a completely randomized design with 2×3 factorial arrangement containing, 2 levels of energy (low and high energy) and 3 levels of vitamin premix withdrawal (28, 35 and 42 days). ...

Journal: :Poultry science 2003
G B Havenstein P R Ferket M A Qureshi

The yield of carcass parts as well as levels of carcass fat, moisture, and ash were measured in the 1957 Athens-Canadian Randombred Control (ACRBC) and in the Ross 308 commercial broiler, when fed diets that were representative of those being fed during 1957 and 2001. The Ross 308 was used to represent 2001 commercial broilers. Comparisons of carcass weights of the Ross 308 on the 2001 diet ver...

2005
Elisa Helena Giglio Ponsano

The objective of this study was to evaluate the effect of different supplementation levels of Rhodocyclus gelatinosus biomass on the performance and pigmentation of broilers. Cobb broilers were raised in pens and were fed a sorghum-based diet until 35 days of age. At the 36th day of age, ninety-six birds were randomly distributed to four treatments consisting of experimental diets with differen...

A. Fattah, F. Shirmohammad N. Jabbari

This study was conducted to investigate the effects of protexin probiotic and aquablend avian antibody on the performance and immune system of broilers. In this experiment, 320 1-day-old male broiler chicks of the Ross 308, with 5 treatments and 4 replications in a completely randomized design were distributed in experimental units (cages). The treatments include: control (C), protexin (P1), pr...

2007
FARSHID KHEIRI MAJID TOGHYANI

Three hundred one-day-old male broilers (Ross 308) were allocated to five treatments with four replicates in a completely randomized design. Treatments supplemented with 0 (control), 400, 800, 1200 or 1600 ppb chromium in the form of chromium chloride. All birds were intramuscularly immunized with killed vaccine of Newcastle and Avian Influenza (H9 N2) virus at 8 d. On days 18 and 28 blood samp...

Journal: :Journal of the Hellenic Veterinary Medical Society 2022

This experiment was conducted to evaluate the effects of thyme essential oil and enzyme supplementation corn/wheat based diets on performance, carcass traits blood metabolites in broilers. carried out with 432 Ross–308 broilers as factorial arrangement 36 unites (12 birds per each replicate) a completely randomized design from 1 up 42 days. Result’s showed that basic ration type meal have stati...

Journal: :Journal of animal science 2013
P Y Zhao J P Wang I H Kim

A total of 720 1-d-old male Ross broilers (BW of 48.0±0.3 g) were used to evaluate the effects of dietary levan fructan supplementation on growth performance, meat quality, relative organ weight, cecal microflora, and excreta noxious gas emission in broilers. This experiment lasted 31 d. Broilers were randomly allotted to 1 of 3 dietary treatments: 1) CON, basal diet, 2) CON+0.25% fructan (FC1)...

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