Results 21 to 30 of about 236,890 (260)

Intake and performance of lambs finished in feedlot with wet brewer’s grains

open access: yesJournal of Animal Science and Technology, 2018
Background The use of agroindustrial by-products in ruminant nutrition to be an interesting alternative in order to reduce production costs and environmental impacts arising from the inadequate destination of residues. The initial step of beer production
Mônica Feksa Frasson   +6 more
doaj   +1 more source

Calcium:phosphorus ratios and supplemental phytases on broiler performance and bone quality

open access: yesJournal of Applied Poultry Research, 2020
Summary: This study aimed to evaluate 2 phytases, at 2 supplementation doses, in broiler diets with nutritional matrices with reduction in Ca:total P (tP) ratio.
Caroline Bavaresco   +5 more
doaj   +1 more source

Impact of Feeding Tea Leaves Saponins on Some Productive and Serum Biochemical Parameters of Awassi Lambs

open access: yesMaǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ, 2020
The study was conducted in one of the private fields of Wasit Governorate for the period from 22/1/2019 to 11/5/2019. The study aimed to investigate the impact of feeding different levels of saponins on the productive performance of Awassi lambs. Sixteen
Rasheed H. Abdullah   +1 more
doaj   +1 more source

STUDY OF THE INFLUENCE OF OREGANO EXTRACT SUPPLEMENTATION IN WEANED PIGS OF THE EASTERN BALKAN BREED [PDF]

open access: yesTrakia Journal of Sciences, 2023
An experiment with 30 weaned pigs of the East Balkan pig breed was conducted at the Agricultural Science Center in Sredets. The aim of the study was to determine the effect of oregano extract supplementation on the productivity and health status of ...
N. Palova, G. Yordanova, R. Nedeva
doaj   +1 more source

Reassessing flavophospholipol effects on broiler performance

open access: yesRevista Brasileira de Zootecnia, 2012
The objective of this study was to evaluate bird responses to flavophospholipol at higher doses than those recommended by the Brazilian legislation. A trial was conducted with 900 male broilers divided into five doses of flavophospholipol: 0, 2, 4, 8 and
Rafael de Barros   +5 more
doaj   +1 more source

Design and Optimization of a RF Mixer for Electromagnetic Sensor Backend

open access: yesEng
In radio frequency (RF) systems, the mixer is a critical component for achieving frequency conversion in electromagnetic sensor backends. This paper proposes a mixer design methodology aimed at improving noise figure and conversion gain specifically for ...
Xudong Hao, Xiao Wang, Yansheng Li
doaj   +1 more source

A High Conversion Gain 210-GHz InP DHBT Sub-Harmonic Mixer Using Gain-Enhanced Structure

open access: yesIEEE Access, 2019
In this paper, we present a novel gain-enhanced sub-harmonic mixer based on 0.5-μm emitter width InGaAs/InP double heterojunction bipolar transistors (InP DHBTs). The proposed mixer consists of a transconductance stage and a gain-enhanced stage. A
Yukun Li   +8 more
doaj   +1 more source

Ku-Band Mixers Based on Random-Oriented Carbon Nanotube Films

open access: yesNanomaterials
Carbon nanotubes (CNTs) are a type of nanomaterial that have excellent electrical properties such as high carrier mobility, high saturation velocity, and small inherent capacitance, showing great promise in radio frequency (RF) applications.
Mengnan Chang   +7 more
doaj   +1 more source

Overview on the performance of Brazilian broilers (1990 to 2009)

open access: yesBrazilian Journal of Poultry Science, 2012
This article describes the genetic evolution of commercial broilers between 1990 and 2009, considering live performance, in particular, in terms of weight gain and feed conversion ratio.
IS Patricio   +3 more
doaj   +1 more source

Diets formulated on total or digestible amino acid basis with different energy levels and physical form on broiler performance

open access: yesBrazilian Journal of Poultry Science, 2005
We studied the effects of two different systems of expressing amino acid requirements (total - TAA or digestible - DAA), two energy levels (2,900 or 3,200 kcal of ME/kg) and two physical forms (mash or pellet) on the performance of male broilers from 21 ...
A Maiorka, F Dahlke, AM Penz, AM Kessler
doaj   +1 more source

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