نتایج جستجو برای: abstract co variance components of milk

تعداد نتایج: 21230820  

Journal: :Journal of dairy science 2006
J B Cole P M VanRaden

Cows with high persistency tend to produce less milk than expected at the beginning of lactation and more than expected at the end. Best prediction of persistency was calculated as a function of a trait-specific standard lactation curve and a linear regression of test-day deviations on days in milk. Regression coefficients were deviations from a balance point to make yield and persistency pheno...

Journal: :Journal of dairy science 2006
H Soyeurt P Dardenne A Gillon C Croquet S Vanderick P Mayeres C Bertozzi N Gengler

The aim of this research was to study the potential for selection of cows with a higher nutritional quality of milk fat by studying the differences in fatty acid profiles within and across the following breeds: Dual Purpose Belgian Blue, Holstein-Friesian, Jersey, Montbeliarde, and non-Holstein Meuse-Rhine-Yssel type Red and White. Six hundred milk samples from 275 animals were taken from 7 her...

Journal: :Journal of dairy science 1989
M C Dong L D van Vleck

Variance and covariance components for milk yield, survival to second freshening, calving interval in first lactation were estimated by REML with the expectation and maximization algorithm for an animal model which included herd-year-season effects. Cows without calving interval but with milk yield were included. Each of the four data sets of 15 herds included about 3000 Holstein cows. Relation...

Journal: :علوم دامی ایران 0
پویا زمانی دانشیار گروه علوم دامی، دانشگاه بوعلی سینا، همدان سیده عطیه طهایی دانش آموخته کارشناسی ارشد گروه علوم دامی، دانشگاه آزاد اسلامی، واحد ساوه علی قاضی خانی استادیار گروه علوم دامی، دانشگاه آزاد اسلامی، واحد ساوه مهدی جسوری دانشجوی دکتری گروه علوم دامی، دانشگاه بوعلی سینا، همدان

the present study was conducted to estimate genetic parameters and genetic, environmental and phenotypic trends of milk production traits in holstein cattle of hamedan province. in this study 11986 305-d records of first three parities of hamedan province holstein cattle, which were gathered during 1990-2011, were used. variance-covariance components and breeding values were estimated using ani...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1389

cultural iran is a scope that is more extended than the political territories of iran as a political unit. this concept means that cultural geography(mehdi moghanlo-1383-1) of iran is greater than its political geography which, according to history, has a long history extending west-east from kandahar to the euphrates and north-south from the persian gulf to the caucasus including transoxiana a...

Journal: :تحقیقات علوم رفتاری 0
امیر جهانیان نجف آبادی amir jahanian najafabadi مهرداد صالحی mehrdad salehi مهدی رحمانی mehdi ramani حدیث ایمانی hadis imani امیر جهانیان نجف آبادی مهرداد صالحی مهدی رحمانی

abstract aim and background: the aim of the present study was to evaluate the effect of neurofeedback training on reducing anxiety in people who attend a psychology clinic in isfahan. methods and materials: eighteen persons were randomly divided in control and test groups. the mean age of participants was 34.44. then, before and after the training they were evaluated with kattel anxiety test (1...

Alam geer, Maqsood Ahmad Muhammad Sher Shazia Akram Ghumman Tahir Abbas Tanveer Sharif

     Several modalities of drug administration have been investigated to improve bioavailability and to reduce 5-FU related toxicity. The aim of present study was to evaluate the effect of skimmed milk on the absorption and metabolism of 5-FU in rabbits, mice and dogs. It was further aimed to determine its route related toxicity in rabbits.    Plasma concentration of both 5-FU and its metabolit...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده روانشناسی و علوم تربیتی 1388

the aim of this study is investigating the effect of teaching “metacognitive strategies” on the way which scientific information retrieval workes by the using of google scholar searching machine on the students of ms in the psycology & education faculty of allameh tabatabayi university in 2007-2008 academic year. the statistical community was the students of ms in psychology & education facult...

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