نتایج جستجو برای: 2 or 3 feeding times per day with 4 replicates. birds fed once a day

تعداد نتایج: 16526957  

Journal: :علوم دامی ایران 0
سودابه مرادی دانشجوی دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران مجتبی زاغری استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمود شیوازاد استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران رحیم عصفوری عضو هیأت علمی پژوهشکده بیوتکنولوژی کشاورزی کرج (abrii) محسن مردی عضو هیأت علمی پژوهشکده بیوتکنولوژی کشاورزی کرج (abrii)

this experiment was conducted to determine the effects of either twice or thrice a day feeding regimens on performance and as well on plasma hormone and metabolite levels of broiler breeder hens during 24 to 38 wk of their productive age. breeder pullets were provided form a commercial flock, and distributed in experimental units, in a compeletly randomized design with three feeding regimens (t...

A.A. Gheisari G.R. Ghalamkari M. Mohammadrezaie M. Toghyani, M. Zamanizad S.A. Tabeidian

The current study was conducted to evaluate effects of sequential or wet feeding programs subsequent to and early meal feeding regime on performance, carcass characteristics and humoral immunity in broiler chicks. 192 Ross 308 chicks (seven-day old) were allocated to four treatments at four replicates (12 chicks per plot) based on a Completely Randomized Design. Treatments were included: contro...

Journal: :iranian journal of applied animal science 2014
m. toghyani a.a. gheisari s.a. tabeidian g.r. ghalamkari m. zamanizad

the current study was conducted to evaluate effects of sequential or wet feeding programs subsequent to and early meal feeding regime on performance, carcass characteristics and humoral immunity in broiler chicks. 192 ross 308 chicks (seven-day old) were allocated to four treatments at four replicates (12 chicks per plot) based on a completely randomized design. treatments were included: contro...

A. Meimandipour, A. Rafiei-Tari K. Karimi S.A. Hosseini

An experiment was conducted to evaluate the additional effects of two ground medicinal herbs oat bran (OB) and dill seed (DS) on serum lipids, carcass characteristics and growth performance in Japanese quails. A total of 240-twenty one day of age male Japanese quails were allocated randomly to 3 treatments with 4 replicates of 20 birds per cage. Birds during the 22-49 days on trial received 3 d...

Journal: :Poultry science 2008
J M Spradley M E Freeman J L Wilson A J Davis

Broiler breeder hens are typically provided a restricted amount of feed once a day. This feed is rapidly consumed; therefore, the hens fast for an extended period of time before their next feeding. In the current research, the effects on reproductive performance of implementing a twice-a-day vs. a once-a-day feeding program after photostimulation were investigated. Pullets and cockerels were re...

Journal: Poultry Science Journal 2017
Beheshti Moghadam MH Behgar M Kermanshahi H Rezaei M

The objective of this study was to investigate the effects of feeding electron irradiated flaxseed (FS) on performance, carcass characteristics, blood parameters, digesta viscosity, and nutrient digestibility in broiler chickens. In a 2 × 2 factorial arrangement, 320 day-old broiler chicks were randomly assigned to one of five experimental diets, each with four replicates containing 16 chicks e...

Journal: :Poultry science 2010
R Taherkhani M Zaghari M Shivazad A Zare Shahneh

To evaluate the effects of different methods of feed allocation on performance, plasma hormone concentration, and ovarian morphology, an experiment was conducted using 32 Cobb 500 broiler breeder hens. The experiment was started at 27 wk and lasted to 39 wk of age. Feeding regimens included: i) hens with an ad libitum feeding program, ii) hens that received their restricted feed once a day, iii...

Journal: :تولیدات دامی 0
کامران اکبری پابندی کارشناس ارشد، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه زنجان، زنجان حمیدرضا میرزایی الموتی استادیار، گروه علوم دامی، دانشکدۀ کشاورزی دانشگاه زنجان، زنجان

this experiment was conducted to investigate the effect of feeding frequency and oil supplementation to the diet on performance and feeding behavior of lactating dairy cows. twenty four lactating holstein cows, 12 primiparous, (bw= 626±58 kg and dim= 195±44 day) and 12 multiparous, (bw= 617±25 kg and dim= 207±39 day) were randomly assigned to four diets contained 2.5 percent supplemental oil or...

F. Samadian M. Behroozlak M. Faramarzzadeh V. Vahedi,

The objective of this study was to determine the effect of different levels of chicory root and stem powder (CRSP) and butyric acid (BA) combination on the performance, carcass traits, relative weight of internal organs and some blood parameters in broiler chickens. Two hundred and forty one-day-old broilers (Ross 308) were used in a completely randomized design with four treatments with six re...

Journal: :پژوهش های علوم دامی ایران 0
سید مهدی کریم زاده حمید امانلو اکبر نیکخواه محمد علی سیرجانی غلامرضا نوری

the present study was conducted in order to determine the effects of feeding frequency (ff) on dairy cow performance fed a total mixed ration (tmr) based on chopped alfalfa hay. eight multiparous early lactation holstein cows were housed in the individual boxes (4 × 3 m) and fed either once a day (1x) at 0700 h or 4 times a day (4x) at 0100, 0700, 1300 and 1900 h with tmr. the experiment was do...

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