BACKGROUND: In the past decades, medicinal plants were used to enhance the specific and non-specific defense mechanism and to increase resistance to disease. OBJECTIVES: This study was performed to evaluate the effect of Curcuma longa L. on the hematological factors of Huso huso. METHODS: In this study, 90 beluga with average weight of 2.403± 0.006 Kg were kept on Shahid Rajai reproduction, culture and rehabilitation of sturgeon for 20 days. This number of fish were distributed in the three groups with the names curcumin, control (+) and control (-) with three replicates. After one week adaptation with experimental environment fish were injected intraperitoneally. In curcumin group 400 mg/kgbw curcumin extract at the maximum volume of 0.5 ml was used. In control (+)and in control (-) without injection 0.5 ml of physiological serum was kept just to check fish experimental conditions. Blood was taken at 0, 3, 6, 9 and 12 days post injection. RESULTS: The results of this study showed that the amount of red blood cells, white blood cells, hematocrit, hemoglobin and blood indices such as MCV, MCH, MCHC in the curcumin group was higher  than the control group (control (+) and control (-)). CONCLUSIONS: The result of this study showed that use of curcumin in beluga has high impact on increasing Hematology parameters.

In this preliminary investigation, various hematologic variables potentially influential in determining the degree of blood viscosity were evaluated in 10 Thoroughbred horses subjected to competitive acute running exercise. Following completion of sprints over a distance of 1.25 miles, mean percent (+/- SD) increases in PCV (38.3 +/- 12.9%), RBC (47.8 +/- 15.3%), and rouleaux index (232.7 +/- 176.8%) were recognized. Simultaneous increases in total plasma protein (28.3 +/- 5.31%), serum albumin (26.7 +/- 6.80%), alpha 1-globulin (60.0 +/- 49.0%), alpha 2-globulin(25.5 +/- 27.9%), beta 1-globulin (46.7 +/- 21.1%), beta 2-globulin (35.0 +/- 50.6%), gamma 1- and 2-globulins (38.7 +/- 29.6%), and plasma fibrinogen (12.5 +/- 10.4%) concentrations increased simultaneously. Horses also had consistent decreases in albumin:globulin ratio (- 10.0 +/- 7.43%). Alterations in these hematologic values after acute running exercise in Thoroughbred horses accompanied increases in serum (69.3 +/- 39.7%), plasma (39.7 +/- 11.9%), and blood (134.7 +/- 55.3%) viscosity.

A study was conducted to examine sources of variation introduced into a phagocytosis assay as a result of the isolation of neutrophils from bovine blood, including variation attributable to isolation of neutrophils from blood, variation between duplicate determinations of percentage phagocytosis, and the variation in the ability of neutrophils isolated from blood (over repeated collections from the jugular vein) to phagocytose. For the phagocytosis assay, jugular venous blood from each of 4 cows was divided into 2 equal portions. The neutrophils were isolated by lysis of red blood cells with 0.2% sodium chloride. The neutrophils (2 X 10(7)) were incubated in duplicate with 32P-labeled Staphylococcus aureus ([32P]SA; 2 X 10(8)) inskimmed milk samples (2.5% final concentration) prepared from 4 cows. This process was repeated thrice on neutrophils isolated from 4 cows at 2-week intervals. The proportions of variation in percentage of 32P-labeled S aureus phagocytosed between duplicate neutrophil isolations and between duplicate assay determinations were 0 and 1%. Differences among skimmed milk sources and among runs, using blood neutrophils taken at different times from the same donor cow, accounted for 62 and 36% of the total variation. The results indicated that variation arising from blood neutrophil isolation introduced into a phagocytosis assay within a single-day trial is of no concern. The large variation among skimmed milk sample sources indicated differences among cows in the ability of their milk to support phagocytosis. The variation in neutrophil isolations over time for any cow was considered too large to allow for evaluation of physiologic and environmental effects on phagocytosis of neutrophils isolated from blood.

The study was designed to investigate the effects of repeated lipopolysaccharide (LPS) treatment on growth performance, lymphoid organ indexes, and blood cells in Sprague-Dawley rats. Forty healthy weaned Sprague-Dawley rats were randomly equally divided into LPS and control groups. Each rat in the LPS group was injected via the caudal vein with LPS (100 μg/kg b.w.) for 10 days, and the control group was treated with an equal volume of normal saline. On the 1ˢᵗ, 4ᵗʰ, 7ᵗʰ, and 10ᵗʰ days, growth performance, lymphoid organ indexes, and blood cells were evaluated in five necropsied rats. When rats were treated 3–10 times with LPS, their body weight and average daily gains increased more slowly than in the control group (P < 0.05). Repeated LPS treatment significantly increased spleen weight and the ratio of spleen to body weight (P < 0.05). White blood cells, neutrophils, and neutrophil percentage increased (P < 0.05) remarkably, but lymphocyte percentage, haemoglobin, and blood platelet counts decreased significantly (P < 0.05). LPS treatment obviously suppresses growth and promotes peripheral immune organ proliferation. It is indicated that host protective mechanism can be activated by multiple small doses of LPS and prevents organs from further damage during stress status.

Interpretation of laboratory data is very important and based on comparison with reference intervals in routine practice. Leukocyte term includes all white blood cells and their precursors. These cells use blood circulation for going to the original tissues from their original locations. Total leukocyte count can be changed by various physiologic and pharmacologic reasons. In healthy cats, lymphocytes are the second most frequent leukocyte in the blood. Compared to middle-aged or old cats, young animals have higher absolute lymphocyte counts. The medical records of cats referred to the Ankara University Small Animal Hospitalfor general examination between April 2016 and August 2017 were retrospectively reviewed. Complete bloodcount (CBC) data includes red blood cell (RBC) count, haemoglobin, haematocrit (HCT), mean cell volume(MCV), mean cell haemoglobin (MCH), mean cell haemoglobin concentration (MCHC), red blood celldistribution width, platelet count, white blood cell (WBC) count, neutrophils, lymphocytes, monocytes,eosinophils and basophils.Of 5292 cats, 191 cats at the age between 0 and 1 and with CBC data were included in the study. CBCswere obtained from all 191 cats at the first visit. The relationship of hematological data to the reference range issummarized in Table 2. It was observed that 25.7% of the cats had leucocyte counts below the reference intervaland 3% had above the reference interval. Considering neutrophil counts, it is seen that 23.3% were lower and4.5% were higher. According to the results of 191 hemogram tests, lymphocyte counts of 39 cats (19.3%) andmonocyte counts of 9 cats (4,5%) were found to be low.This is a novel study that includes the results of detailed examination of breed and age distributionof complete blood count results at the first clinical visits of cats. According to our retrospective screening results,it is seen that the relation of monocyte numbers with age is statistically significant. (p = 0.018) The biggestdifference between the two age groups in the study is the pre- and post-adolescence periods. It is important toprecisely know the results of CBC test in the first visit to the clinic and to take the necessary precautions toeliminate the abnormal results before vaccination.

Ovine pulmonary adenocarcinoma (OPA) is a transmissible lung cancer caused by Jaggsiekte sheep retrovirus (JSRV). It is difficult to identify animals infected with JSRV but are clinically healthy. The virus does not induce a specific antibody response and, although proviral DNA sequences of JSRV can be found in mononuclear blood cells, the detection is inconsistent. The aim of this study was to investigate the presence of JSRV in the bone marrow of infected sheep and develop a more consistent screening method. Immunohistochemical examination of bone marrow samples from 8 asymptomatic JSRV-infected sheep revealed the presence of positively labelled cells. However, JSRV could not be detected by a highly sensitive polymerase chain reaction (PCR) in bone marrow aspirates periodically collected from these animals. Results suggest that JSRV-infected cells may be present in the bone marrow of symptomless animals, but the number is below the detectable level for PCR. Therefore, this technique does not seem to be helpful for preclinical diagnosis of OPA.

Reference values for hematologic variables change with increasing age in cattle. Therefore, the purpose of the study reported here was to describe the peritoneal fluid constitutents of clinically normal young calves, and to compare cellular concentration and distribution in blood and peritoneal fluid of young calves with those of adult cattle. Eight healthy 8-week-old male Holstein calves and 8 healthy 3- to 8-year-old Holstein cows were studied. Peritoneal fluid was collected from calves along the ventral midline, 4-cm cranial to the umbilicus. Abdominocentesis was performed in the region of the lower right flank in adult cattle. Correlation analysis, using the Pearson's correlation coefficient, and regression analysis were performed for blood and peritoneal fluid data from calves. Data from calves were compared with those of cows, using Wilcoxon's rank sum test. A P value < 0.05 was considered significant for all tests. Calves had significantly lower blood eosinophil count (P < 0.003) and plasma protein concentration (P < 0.001) than did cows. Calves had significantly higher peritoneal fluid nucleated cell (P < 0.05) and mononuclear cell (P < 0.05) counts, but lower peritoneal fluid eosinophil cell count (P < 0.003) than did cows. For calves, nulceated cell and lyhocyte cell counts in the blood had a high, positive correlation with those of peritoneal fluid. However, the prediction equation for nucleated cell count accounted for a modest proportion of variability. A prediction equation for peritoneal fluid lymphocyte cell count was established. On the basis of results of this study, reference ranges established for peritoneal fluid constituents of clinically normal adult cattle may not be appropriate for interpretation of peritoneal fluid analysis of calves.

Dermacentor andersoni, demonstration of Anaplasma marginale in hemolymph by animal inoculation and fluorescent antibody technique

Objective-To investigate telomere lengths in tissues of domestic shorthair (DSH) cats of various ages, evaluate the relationship between telomere length and age of cats, and investigate telomerase activity in the somatic tissues of cats. Sample Population-Tissues obtained from 2 DSH cats and blood samples obtained from 30 DSH cats. Procedure-DNA isolated from blood cells and somatic tissue samples was subjected to terminal restriction fragment (TRF) analysis to determine mean telomere repeat lengths. Protein samples were subjected to analysis by use of a telomeric repeat-amplification protocol to assess telomerase activity. Results-Mean TRF values of cats ranged from 4.7 to 26.3 kilobase pairs, and there was significant telomeric attrition with increasing age of cat. Telomerase activity was not found in a wide range of normal tissues obtained from 2 cats. Conclusions and Clinical Relevance-Analysis of these results clearly indicates that telomeres are shorter in older cats, compared with young cats; therefore, telomeres are implicated in the aging process. The analysis of telomerase activity in normal somatic tissues of cats reveals a pattern of expression similar to that found in human tissues. Impact for Human Medicine-Fundamental differences in the biological characteristics of telomeres and telomerase exist between humans and the other most widely studied species (ie, mice). The results reported here reveal similarities in telomere and telomerase biologic characteristics between DSH cats and humans. Hence, as well as developing our understanding of aging in cats, these data may be usefully extrapolated to aging in humans.

Hematologic values arid cellular morphologic features were evaluated for 38 healthy adult llamas. Reference ranges were determined for PCV, reticulocyte concentration, leukocyte concentration, and leukocyte differential counts. The approach used in this study was to focus on hematologic values that may be determined by use of techniques readily available to the practicing veterinarian and nonveterinary laboratory. Unique cellular morphologic features commonly observed and interpreted as normal included large granular lymphocytes, hyposegmented eosinophil nuclei, folded erythrocytes, and hemoglobin crystals.