Results 11 to 20 of about 51,080 (243)

Optofluidic Lens Refractometer [PDF]

open access: yesMicromachines
In the face of increasingly severe global environmental challenges, the development of low-cost, high-precision, and easily integrable environmental monitoring sensors is of paramount importance.
Yifan Zhang   +7 more
doaj   +2 more sources

Effect of Blood Sampling Time After Colostrum Intake on the Concentration of Metabolites Indicative of the Passive Immunity Transfer in Newborn Dairy Calves [PDF]

open access: yesAnimals
Due to the synepitheliochorial placental structure, bovines show no maternal antibody flow from mother to fetus during pregnancy, resulting in an agammaglobulemic newborn [...]
Mohammad Hassan Mortazavi   +6 more
doaj   +2 more sources

Validation of a handheld refractometer to assess Merino ewe colostrum and transition milk quality

open access: yesJournal of Dairy Science, 2023
: Colostrum quality is generally defined by the IgG concentration in colostrum, and many methods have been used to assess it. Methods to measure colostrum quality both in the laboratory and in the field have been validated in cattle; however, this is ...
Bianca Agenbag, Kiro Risto Petrovski
exaly   +3 more sources

High Sensitivity Refractometer Based on TiO2-Coated Adiabatic Tapered Optical Fiber via ALD Technology

open access: yesSensors, 2016
Atomic layer deposition (ALD) technology is introduced to fabricate a high sensitivity refractometer based on an adiabatic tapered optical fiber. Different thicknesses of titanium dioxide (TiO2) nanofilm were coated around the tapered fiber precisely and
Fufei Pang, Sujuan Huang, Fang Zou
exaly   +3 more sources

Proposal for a New Differential High-Sensitivity Refractometer for the Simultaneous Measurement of Two Refractive Indices and Their Differences [PDF]

open access: yesSensors
The refractive index of a liquid serves as a fundamental parameter reflecting its composition, thereby enabling the determination of component concentrations in various fields such as chemical research, the food industry, and environmental monitoring ...
Šimons Svirskis   +2 more
doaj   +2 more sources

On-farm approaches to increase whole-milk total solids: Effects on performance and health of dairy calves [PDF]

open access: yesJDS Communications
This study aimed to evaluate the performance, metabolism, and health of Holstein calves fed whole milk adjusted for 15% TS by adding a commercial solids corrector (245 g/kg CP, 48 g/kg crude fat, 90 g/kg of mineral, and 3 g/kg of ADF) using 2 practical ...
Amanda M. Cezar   +7 more
doaj   +2 more sources

Comparison of biuret and refractometery method for serum total protein measurements in cattle and goat [PDF]

open access: yesBMC Research Notes
Objectives The biuret method is frequently used to determine serum total protein. On the other hand refractometer, a quicker and less expensive option, is available to determine serum total protein.
Sileshi Mesele Mesa   +1 more
doaj   +2 more sources

Use of clinic refractometer at farm as a tool to estimate the IgG content in goat colostrum

open access: yesJournal of Applied Animal Research, 2018
Refractometry has been proposed as a farm technique to estimate the IgG concentration in colostrum. In order to validate the method in goat colostrum using a clinical refractometer, 216 colostrum and milk samples were obtained from 54 dairy goats ...
Noemí Castro   +2 more
exaly   +2 more sources

Determining Immunoglobulin Content of Bovine Colostrum and Factors Affecting the Outcome: A Review

open access: yesAnimals, 2021
The immunoglobulin concentration in bovine colostrum should be measured to ensure feeding with sufficient immunoglobulins (≥50 mg immunoglobulin G mL−1).
Johanna Ahmann   +2 more
doaj   +1 more source

Comparison between the Brix Refractometer and ELISA for Assessment of Colostrum IgG of Montbeliard x Holstein Cross Dairy Cows

open access: yesTropical Animal Science Journal, 2021
The objectives of the present study were to examine the association between the brix refractometer% and ELISA assays in the assessment of colostrum-IgG content and in studying the factors affecting this content.
N. H. Fahim, T. A. Imbabi
doaj   +1 more source

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