نتایج جستجو برای: باقیمانده مصرف خوراک rfi

تعداد نتایج: 56960  

2010
Ian S. Adams Michael H. Bettenhausen Peter W. Gaiser William Johnston M. H. Bettenhausen C. K. Smith R. M. Bevilacqua N.-Y. Wang P. W. Gaiser

The demand for satellite communications has led to large-scale deployments of fixed-satellite service (FSS) systems. Some of the bands allocated for such systems in the X-and K-band regions of the spectrum are either adjacent to, or shared with, those allocated for passive Earth exploration-satellite service (EESS) [1]. While FSS systems are designed such that maximum power is directed towards ...

Journal: :Animal : an international journal of animal bioscience 2015
M Shirali V H Nielsen S H Møller J Jensen

The aim of this study was to determine the genetic background of longitudinal residual feed intake (RFI) and BW gain in farmed mink using random regression methods considering heterogeneous residual variances. The individual BW was measured every 3 weeks from 63 to 210 days of age for 2139 male+female pairs of juvenile mink during the growing-furring period. Cumulative feed intake was calculate...

Journal: :Journal of animal science 2012
E E Connor J L Hutchison K M Olson H D Norman

Increasing feed costs and the desire to improve environmental stewardship have stimulated renewed interest in improving feed efficiency of livestock, including that of US dairy herds. For instance, USDA cost projections for corn and soybean meal suggest a 20% increase over 2010 pricing for a 16% protein mixed dairy cow ration in 2011, which may lead to a reduction in cow numbers to maintain pro...

2013
E. E. Connor J. L. Hutchison H. D. Norman K. M. Olson

Improved feed efficiency is a primary goal in dairy production to reduce feed costs and negative impacts of production on the environment. Estimates for efficiency of feed conversion to milk production based on residual feed intake (RFI) in dairy cattle are limited, primarily due to a lack of individual feed intake measurements for lactating cows. Feed intake was measured in Holstein cows durin...

Journal: :Journal of animal science 2014
L Drouilhet B Basso M-D Bernadet A Cornuez L Bodin I David H Gilbert C Marie-Etancelin

In France, about 95% of the fatty liver production comes from mule ducks, an infertile hybrid cross between female common ducks (Anas platyrhynchos) and Muscovy drakes (Cairina moschata). As a hybrid, genetic improvement of the performance of mule ducks is achieved by selection of the parental populations. Feed represents two-thirds of the total costs of duck production; thus, the breeders' mai...

Journal: :Physics Procedia 2015

Journal: :Remote Sensing 2022

As an open system, synthetic aperture radar (SAR) inevitably receives radio frequency interference (RFI) generated by electromagnetic equipment in the same band. The existence of RFI seriously affects SAR signal processing and image interpretation. In recent years, many algorithms models related to mitigation have been proposed. However, most that focus on effectively mitigating is insufficient...

ژورنال: :تحقیقات دام و طیور 0
جعفر جعفری مرتضی چاجی محمد بوجارپور طاهره محمدآبادی سمیه سالاری

این آزمایش به منظور بررسی تأثیر سطوح مختلف تفاله زیتون و مخلوط آنزیمی با نام تجاری ناتوزیم p، بر عملکرد و هضم مواد مغذی با استفاده از 320 قطعه جوجه گوشتی نر سویه تجاری راس 308 در یک دوره 42 روزه اجرا شد. آزمایش حاضر در قالب طرح کاملاً تصادفی به صورت آزمایش عاملی، شامل چهار سطح تفاله زیتون (0، 5، 10 و 15 درصد) و دو سطح آنزیم (0 و 5/0 درصد) با 4 تکرار در هر تیمار و 10 جوجه در هر تکرار انجام شد. نت...

Journal: :IEEE Transactions on Geoscience and Remote Sensing 2023

Synthetic Aperture Radar (SAR) satellite images are used increasingly more for Earth observation. While SAR useable in most conditions, they occasionally experience image degradation due to interfering signals from external radars, called Radio Frequency Interference (RFI). RFI affected often discarded further analysis or pre-processed remove the RFI. However, few on-ground radars can cause and...

Journal: :Journal of animal science 2011
R M Smith N K Gabler J M Young W Cai N J Boddicker M J Anderson E Huff-Lonergan J C M Dekkers S M Lonergan

The objectives of this study were to determine the extent to which selection for decreased residual feed intake (RFI) affects pork composition and quality. Pigs from the fifth generation of selection for decreased RFI (select) and a randomly selected line (control) were utilized. Two experiments were conducted. In Exp. 1, barrows (22.6 ± 3.9 kg) from select and control lines were paired based o...

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