scholarly journals Research Note: Effect of age on hematological parameter and reference intervals for commercial Lohmann silver layer

2021 ◽  
pp. 101497
Author(s):  
DING Hong ◽  
CHANG Liyun ◽  
LI Fuwei ◽  
YUE Qiaoxian ◽  
WANG Dehe ◽  
...  
Keyword(s):  
Reference Intervals ◽  
Research Note ◽  
Hematological Parameter ◽  
Silver Layer ◽  
Effect Of Age

Conditions affecting the colorimetry of orotic acid and orotidine in urine.

1980 ◽  
Vol 26 (3) ◽  
pp. 473-479 ◽  
Author(s):  
M L Harris ◽  
V G Oberholzer
Keyword(s):  
Orotic Acid ◽  
Exchange Resin ◽  
Colorimetric Assay ◽  
Cation Exchange Resin ◽  
Reference Intervals ◽  
Molar Ratio ◽  
Background Color ◽  
Small Column ◽  
Analytical Recovery ◽  
Effect Of Age

Abstract We studied conditions affecting a colorimetric assay of total orotic acid (orotic acid plus orotidine) in urine. Most interfering substances can be conveniently removed on a small column of cation-exchange resin, and an improved control reaction corrects for residual background color. Analytical recovery from urine is nearly complete (greater than 95%) and the absorption spectrum for analyte eluted from the column closely resembles that for an orotic acid standard. We determined reference intervals for total orotic acid, expressed as a molar ratio to creatinine, for neonates, children, and adults, and assessed the effect of age, protein intake, and pregnancy. The method is simple enough to use as a reliable and accurate urine-screening test.

scholarly journals Research Note: Effect of age on the distribution of lymphocytes in the oviduct in Turkey breeder hens

2020 ◽  
Vol 99 (6) ◽  
pp. 3009-3014
Author(s):  
Joanna Kowalczyk ◽  
Marcin Śmiałek ◽  
Bartłomiej Tykałowski ◽  
Daria Dziewulska ◽  
Tomasz Stenzel ◽  
...  
Keyword(s):  
Research Note ◽  
Breeder Hens ◽  
Effect Of Age

Conditions affecting the colorimetry of orotic acid and orotidine in urine.

1980 ◽  
Vol 26 (3) ◽  
pp. 473-479 ◽  
Author(s):  
M L Harris ◽  
V G Oberholzer
Keyword(s):  
Orotic Acid ◽  
Exchange Resin ◽  
Colorimetric Assay ◽  
Cation Exchange Resin ◽  
Reference Intervals ◽  
Molar Ratio ◽  
Background Color ◽  
Small Column ◽  
Analytical Recovery ◽  
Effect Of Age

Abstract We studied conditions affecting a colorimetric assay of total orotic acid (orotic acid plus orotidine) in urine. Most interfering substances can be conveniently removed on a small column of cation-exchange resin, and an improved control reaction corrects for residual background color. Analytical recovery from urine is nearly complete (greater than 95%) and the absorption spectrum for analyte eluted from the column closely resembles that for an orotic acid standard. We determined reference intervals for total orotic acid, expressed as a molar ratio to creatinine, for neonates, children, and adults, and assessed the effect of age, protein intake, and pregnancy. The method is simple enough to use as a reliable and accurate urine-screening test.

Effect of age on reference intervals of serum biochemical values in kittens

2006 ◽  
Vol 228 (7) ◽  
pp. 1033-1037 ◽  
Author(s):  
Julie K. Levy ◽  
P. Cynda Crawford ◽  
Linda L. Werner
Keyword(s):  
Reference Intervals ◽  
Serum Biochemical ◽  
Effect Of Age

scholarly journals Effect of age, sex, and body size on the blood biochemistry and physiological constants of dogs from 4 wk. to > 52 wk. of age

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Ana Luisa Montoya Navarrete ◽  
Teódulo Quezada Tristán ◽  
Samuel Lozano Santillán ◽  
Raúl Ortiz Martínez ◽  
Arturo Gerardo Valdivia Flores ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Size ◽  
Body Temperature ◽  
Enzymatic Activity ◽  
Reference Intervals ◽  
Group Iv ◽  
Blood Biochemistry ◽  
Group I ◽  
Glutamyl Transferase ◽  
Effect Of Age

Abstract Background Blood biochemistry and reference intervals help to differentiate between healthy and ill dogs as well as to provide information for the prognosis, evaluation, and monitoring; however, these intervals are often obtained from adult animals. It is essential to understand that puppies and adults are physiologically different, which justifies the need to obtain age-specific biochemical reference intervals. The aim of this research was to assess the potential effect of age, sex, body size, and their interaction on routine biochemical analytes and physiological constants (body temperature, heart rate, and respiratory rate). To carry out the research, we selected 197 healthy dogs of both sexes and different body sizes (small, medium and large) classified by age: group I (4–8 wk), group II (9–24 wk), group III (25–52 wk), and group IV (> 52 wk). The biochemical analysis included the measurement of the enzymatic activity of aspartate aminotransferase (AST), alanine aminotransferase (ALT), lactate dehydrogenase (LDH), gamma-glutamyl transferase (GGT), alkaline phosphatase (ALP), and the concentrations of cholesterol, triglycerides, total proteins, albumin, globulins, glucose, urea, and creatinine. Statistical analyses used analysis of variance (ANOVA) and a general linear model (GLM), which allows the comparison of multiple factors at two or more levels (p < 0.05). Results The results of this study showed that ALT, total protein, albumin, globulin, urea, creatinine, and body temperature levels were lower in puppies than in adult dogs of group IV (p < 0.05), while the enzymatic activity of ALP, LDH, glucose concentration, and heart rate were higher. Whereas sex, body size and the interaction did not show a significant effect (p > 0.05). Conclusions Some biochemical components are influenced by age. For this reason, this manuscript contributes with additional data for the clinical interpretation of blood biochemical results in puppies.

scholarly journals Hematological reference intervals among full-term newborns in Ethiopia: a cross-sectional study

2020 ◽  
Author(s):  
Tegenaw Tiruneh ◽  
Teklehymanot Kiros ◽  
Sisay Getu
Keyword(s):  
Blood Cells ◽  
Reference Interval ◽  
Cross Sectional Study ◽  
Reference Intervals ◽  
Full Term ◽  
Medical Decision ◽  
Hematological Parameter ◽  
Sectional Study ◽  
Cross Sectional ◽  
Term Newborns

Abstract Background: Hematological reference intervals are used for medical decision tools for interpretation of numerical test results. Establishing of hematological interval among newborn babies is very important for the diagnosis of malignancy, anemia, bleeding disorders, and various infections. There is no locally established hematological reference intervals in Ethiopia. Thus, the aim of this study is to established locally determined hematological reference interval among full-term newborns.Methods: A cross sectional study was conducted from February to May 2019 among 151 apparently healthy full-term newborns at Gondar University Hospital. About 3ml of cord blood was obtained for analysis of Hematological parameters and determined by using Sysmex KX-21N (Sysmex Corporation Kobe, Japan) automated analyzer. Median, 2.5th and 97.5th percentiles were computed.Result: Males to female’s ratio was almost equal. All hematological parameter had no statistically significant difference between males and females. The delivery types were not influenced its hematological values. The reference interval of white blood cells, red blood cells, platelets, hemoglobin, hematocrit, mean cell volume, and mean cell hemoglobin were (7.64-22.16) x109/l, (3.69-5.47)x1012/l, (132.74-413.4) x109/l, (13.32-19.64) g/dl and (39.42-58.06)%, (91.6-113.22)fl, and (30.48-38.02)pg, respectively.Conclusion: All hematological reference interval was established from full-term newborns at University of Gondar hospital was different from other studies in Nigeria, Iraq, Pakistan, Nepal, Saudi Arabia and Iran. Therefore, own determined reference value is very important for the clinicians to correctly diagnosis the patients at health facility levels.

scholarly journals Effect of Age, Sex, and Breed on the Blood Biochemistry and Physiological Constants of Dogs From 4 Weeks to > 52 Weeks of Age.

2020 ◽  
Author(s):  
Teódulo Quezada Tristán ◽  
Ana Luisa Montoya Navarrete ◽  
Samuel Lozano Santillán ◽  
Raúl Ortiz Martínez ◽  
Arturo Gerardo Valdivia Flores ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Enzymatic Activity ◽  
Reference Intervals ◽  
Blood Biochemistry ◽  
Specific Reference ◽  
Gamma Glutamyl Transferase ◽  
Group I ◽  
Glutamyl Transferase ◽  
Effect Of Age

Abstract Background: Blood biochemistry and reference intervals help to differentiate between healthy and ill patients as well as to provide information for the prognosis, evaluation, and monitoring of a patient; however, these intervals are often obtained from adult animals. It is essential, hence, to understand that puppies and adults are physiologically different, which justifies the need to obtain age-specific biochemical reference intervals. The aim of this research was to assess the potential effect of age, sex, breed, and interaction on routine biochemical analytes and physiological constants (body temperature, heart rate, and respiratory rate) in addition to establish age-specific reference intervals. In order to carry out the research, we selected 197 healthy dogs of different sex and breed classified by age: group I (4-8 wk), group II (9-24 wk), group III (25-52 wk), and group IV (>52 wk). The biochemical analysis measured the enzymatic activity of aspartate aminotransferase (AST), alanine aminotransferase (ALT), lactate dehydrogenase (LDH), gamma-glutamyl transferase (GGT), alkaline phosphatase (ALP), and concentration of cholesterol, triglycerides, total proteins, albumin, globulins, glucose, urea, and creatinine. Statistical analyses used the Analysis of Variance (ANOVA) and General Linear Model (GLM), which allows the comparison of multiple factors at two or more levels (p < 0.05). Results: The results of this study showed that ALT, total protein, albumin, globulin, urea, creatinine, and body temperature levels were lower in puppies compared to adult dogs (p < 0.05) while the enzymatic activity of ALP, LDH, glucose concentration, and heart rate were higher. Moreover, in small breeds, the serum creatinine levels were lower (p < 0.05) whereas sex and interaction did not show a significant effect (p > 0.05).Conclusions: Some biochemical components evince influence by age. For this reason, this research offers specific reference intervals to help the veterinary clinician to interpret the biochemical results of puppies with accuracy.

scholarly journals Determination of new hematologic reference intervals for sows with optimal reproductive performance, according to reproductive stage, parity and body condition: A cohort study

2021 ◽  
Author(s):  
Carolina Baeza ◽  
Paula Gädicke ◽  
Álvaro Ruiz
Keyword(s):  
Cohort Study ◽  
Body Condition ◽  
Reproductive Cycle ◽  
Reproductive Performance ◽  
Repeated Measures ◽  
Reference Intervals ◽  
The Body ◽  
Reproductive Stage ◽  
Hematological Parameter ◽  
Specific Reference

Abstract Background. Inappropriate feeding and reproductive management according to strategies in sow's reproductive efficiency produce important consequences on sow metabolism. The metabolic alterations can increase mortality and reduce fertility, productivity and lifespan of sows within a farm, decreasing herd output. In according to that, this research aimed to determine the effect of reproductive stage, parity and body condition on hematological parameters of intensive-production sows and also to establish new and representative hematological Reference Intervals for each stage of the reproductive cycle in Chilean sows of optimal reproductive performance. In order to that, a cohort study in 307 healthy sows from two farms was performed. Serial hemograms were obtained and sows were monitored at weaning, prior to artificial insemination, at 35, 60 and 90 days of gestation, and subsequent weaning. Results were analyzed by Repeated-Measures of Anova and Tukey Test to establish differences between times and by the Kruskall-Wallis Test, or Simple Anova Test, to determine differences within times caused by the body condition (BC) or sow age. Results: Significant differences were found in most factors during gestation (P=0,00). At each time frame considered, there was an effect of parity. The sow`s parity history, their BC and the farm`s infrastructure and environment were all relevant factors in each hematological parameter. Additionally, statistically significant differences in almost all the evaluated indicators were contrasted with reference IRs (P=0,00). Hematological indicators supported the interaction between BC and parity in some sows. ConclusionsThis study showed the need of not only specific reference intervals for high-production sows, but also highlights the relevance of considering the different stages of sows´s reproductive cycle. Consideration of sow’s physiological stage and parity, along with body condition appear to be highly relevant to get appropriate hematologic reference intervals.

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