نتایج جستجو برای: rearing performance

تعداد نتایج: 1058850  

Journal: :Journal of Swine Health and Production 2022

Lifetime performance and longevity are very important parameters of profitability in sow breeding. Opportunity to improve lifetime may be found the rearing period preparation gilts for their future reproductive role. With aim prevent premature culling, it is possible influence body condition, limb mammary gland development, proper function tract through nutrition, technology, strategies. Nutrit...

Journal: :Poultry science 1998
L W Fussell

Immunosuppression has historically cost the poultry industry in increased mortality and in performance factors during rearing. In addition, immunosuppression has had a negative impact on the ability of the poultry industry to process chickens due to associated health problems. Industry strategies for controlling immunosuppression are not consistent between broiler companies. The broiler industr...

2014
Qinming Zhou Fan Xu Qingyuan Wu Wei Gong Liang Xie Tao Wang Liang Fang Deyu Yang Narayan D. Melgiri Peng Xie

OBJECTIVE To assess the influence of infant rearing on the behavior of depressed adult female Macaca fascicularis and the influence of depressed infant-rearing adult female Macaca fascicularis on their infants in a free enclosure environment. METHODS Here, 20 depressed subjects and then 20 healthy subjects were randomly selected from a total population of 1007 adult female Macaca fascicularis...

Journal: :دانش گیاه پزشکی ایران 0
علیرضا صیداوی سید ضیاء الدین میرحسینی مانی غنی پور علیرضا بیژن نیا

to compare the performance of fifteen hybrids of silkworm, bombyx mori l. under natural rearing conditions on the farm level and determine their resistance to grasserie disease, an experiment was conducted in a completely randomized design (15 treatments and five replications) for either of non-infected or infected to npv conditions. treatments included hybrids xinhang1?koming1, xinhang1?koming...

A. R. Bizhannia K. Etebari,

In mulberry orchards in northern part of Iran, thrips is a dominant pest and causing a lot of damage to the mulberry. The effect of pest on bio-chemical parameters of mulberry leaf of two varieties viz. Kenmochi and Ichenoise and also the effect of feeding of infested leaves on rearing performances have been studied. For the study, six plots of 200 m2 area of both the varieties were selected an...

Journal: :پژوهش های علوم دامی ایران 0
حسنا حاجاتی منصور رضایی احمد حسن آبادی

in this study the effect of diet dilution in 16-20 d of age and using a multi-enzyme (endofeed-w) on performance, carcass characteristics and some blood parameters of broiler chickens (cobb 500, commercial strain) was studied. this experiment was conducted as a factorial arrangement 2×3 in a completely randomized design with 3 replicates and 8 chicks in each replicate. experimental diets contai...

2015
N. Mohd Nor W. Steeneveld T. H. J. Derkman M. D. Verbruggen A. G. Evers M. H. A. de Haan H. Hogeveen

BACKGROUND As farmers do not often keep a record of the expenditures for rearing, an economic tool that provides insight into the cost of rearing is useful. In the Netherlands, an economic tool (Jonkos) has been developed that can be used by farmers to obtain insight into the cost of rearing on their farm. The first objective of this study is to calculate the total cost of rearing young stock i...

2015
Mariana Piatto Berton Rita de Cássia Dourado Flávia Biondi Fernandes de Lima Ana Beatriz Bertoncello Rodrigues Fábio Borba Ferrari Leonardo Dimas do Carmo Vieira Pedro Alves de Souza Hirasilva Borba

The objective of this study was to evaluate the effect of temperature on the performance and carcass yield of pigs housed in different environments. Twenty castrated male pigs of the Topigs line were assigned to two treatments: T1, controlled environment, and T2, uncontrolled environment containing a shallow pool. A completely randomized design consisting of two treatments and ten repetitions e...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1391

the major aim of this study was to investigate the relationship between iq, eq and test format in the light of test fairness considerations. this study took this relationship into account to see if people with different eq and iq performed differently on different test formats. to this end, 90 advanced learners of english form college of ferdowsi university of mashhad were chosen. they were ask...

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