Investigation of the relationship of apelin hormone response with some physiological parameters in Maedi-Visna infected sheep

ΔΕΝ ΔΙΑΤΙΘΕΤΑΙ ΠΕΡΙΛΗΨΗIn this study, the objective was to assess the serological characteristics of sheep, during lactation and pregnancy periods, and rams belonging to the Red Karaman and White Karaman–Kangal race infected with maedi-visna infection and body condition score (BCS) of ≤2, 3- 3.5 and ≥4 (high) and to analyse the relationship between the level of apelin and its secretion. Apelin level in the blood serum samples obtained from the jugular veinof the sheeps was determined using ELISA method. As a result of the analyses, it was determined that the level of apelin was statistically different between the races; between lactating sheep and pregnant sheep; and sheep and rams. There was no difference between the BCS groups (p > 0.05). Race and sex interaction as well as race, sex and BCS triple interaction effects were found significant (p < 0.05). It was observed that the sheep belonging to the White Karaman–Kangal race were 18 times more likely to be infected with the virus. A decrease in apelin level was observed in the sheep with infection, and it was found that the risk of infection was 0.37 times higher in rams than in lactating sheep (p < 0.05)

Investigation of the relationship between apelin hormone response and some physiological parameters in enzootic bovine leukosis virus infected cattle

   Apelin is a hormone with lymphangiogenesis potential, associated with tumor growth and lymph node metastasis, and reported to stimulate tumor vascularization. This study, it was aimed to investigate the apelin hormone response depending on some physiological parameters (race, age and body condition score) in cattle with and without Enzootic Bovine Leukosis (EBL) infection.  A total of 120 Simmental and Montofon cattle of different ages (<2, 2-8, and ≥8) and different body condition scores (<2, 3-3.5 and ≥4) comprised the animal material of the study.  The apelin hormone level in serum was examined using the ELISA technique in blood samples taken from the neck vein (Vena jugularis) of animals. As a result of the analyzes made, When the mean serum Apelin (ng mL-1) values of BCS*EBL*Age*Race are examined, the highest values in terms of EBL ± are 2.77 ng mL-1 in Simmental cattle between 2-8 years of age with BCS=3- 3.5 while Montofon breed cattle 2.69 ng mL-1 was determined in cattle with BCS=3-3.5 in the age range of 8<. When the mean serum Apelin (ng mL-1) values in terms of EBL -  are examined, the highest value is 2.24 ng mL-1 in Simmental cattle aged 2-8 years with BCS=3-3.5, while the highest value is 2.24 ng mL-1 in Montofon breeds 8< years old BCS=3- 3.5 in cattle 1.45 ng mL-1 was determined. As a result, the effect of apelin on hormone levels was demonstrated for the first time in cattle with or without EBL disease, depending on some physiological parameters (age, race and BCS). It is thought that Apelin hormone, which is characterized by neoplastic lymphocyte cell infiltrations in the lymphoreticular tissues of cattle and has a role in the regulation of tumor growth against EBL, a malignant tumoral disease, may contribute to the processes of eradication programs and the evaluated parameters may be useful in disease prevention and control strategies. &nbsp

Effects of origanum syriacum essential oil on blood parameters of broilers reared at high ambient heat

The biochemical and hematological blood values of broilers fed under heat stress and that were administered Origanum syriacum (OS) essential oil were investigated in this study. In total, 400 male broilers (Ross-308; age, 1 day) were used for the period of 42-days of the study. The experiment included ten groups (n = 50/group; each group divided into five sub-groups): normal heat, 22°C: basal feed (BF)-positive control group (PC), BF + 100 ppm OS; BF + 300 ppm OS; BF + 600 ppm OS). Heat stress, 36°C: BF-positive control group (PC), BF + 100 ppm SOS; BF + 300 ppm OS; and BF + 600 ppm OS). Biochemical and hematological parameters were measured in blood collected into EDTA tubes. Total bilirubin, cholesterol, low-density cholesterol, Na+, Ca2+, and Mg2+ increased, whereas alanine aminotransferase, aspartate aminotransferase, creatine kinase (CK), CK-MB, urea, uric acid, Cl–, and K+ decreased (p<0.05); however, no changes were detected in the other hematological values. © 2017, Fundacao APINCO de Ciencia e Tecnologia Avicolas. All rights reserved

Effects of Origanum syriacum essential oil added in different levels to the diet of broilers under heat stress on performance and intestinal histology

This study compared the effects on performance parameters, intestinal microflora and histology of adding Origanum syriacum (OS) essential oil and an antibiotic (Avilamycin) to the rations of broilers fed under heat stress conditions. The 42-day study used 500 day-old male broilers (Ross-308) divided into 10 groups of 50 animals each. Then, each of these groups was further divided into 5 groups of 10 each. Groups were either kept at 22 degrees C (stress-free) or at 36 degrees C (heat stressed). Birds were fed with 5 experimental diets: control (basic feed (BF) without feed additive), antibiotic (BF + 100 mg/kg Avilamycin), OS 100 (BF + 100 mg/kg OS), OS 300 (BF + 300 mg/kg OS, OS 600 (BF + 600 mg/kg OS). At the end of the study period, some performance parameters, including feed intake, feed-conversion ratio, body weight, average daily weight gain, ileum crypt depth, villus height and microflora, decreased in groups under heat stress without additives (P < 0.01). However, comparison with the control group and the antibiotic group showed that adding OS essential oil provided a benefit close to that of the antibiotic, yet still inadequate, even at the 600 mg/kg dose

Effects of Origanum Syriacum Essential Oil on Blood Parameters of Broilers Reared at High Ambient Heat

ABSTRACT The biochemical and hematological blood values of broilers fed under heat stress and that were administered Origanum syriacum (OS) essential oil were investigated in this study. In total, 400 male broilers (Ross-308; age, 1 day) were used for the period of 42-days of the study. The experiment included ten groups (n = 50/group; each group divided into five sub-groups): normal heat, 22°C: basal feed (BF)-positive control group (PC), BF + 100 ppm OS; BF + 300 ppm OS; BF + 600 ppm OS). Heat stress, 36°C: BF-positive control group (PC), BF + 100 ppm SOS; BF + 300 ppm OS; and BF + 600 ppm OS). Biochemical and hematological parameters were measured in blood collected into EDTA tubes. Total bilirubin, cholesterol, low-density cholesterol, Na+, Ca2+, and Mg2+ increased, whereas alanine aminotransferase, aspartate aminotransferase, creatine kinase (CK), CK-MB, urea, uric acid, Cl-, and K+ decreased (p<0.05); however, no changes were detected in the other hematological values