Ameliorative effects of L-glutamine on haematological parameters in heat-stressed Red Sokoto goats.

Autor: Ocheja OB; Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, PMB 1045, Zaria, Nigeria. Electronic address: ohiemi.ocheja@uniben.edu., Ayo JO; Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, PMB 1045, Zaria, Nigeria., Aluwong T; Department of Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, PMB 1045, Zaria, Nigeria., Minka NS; College of Agriculture and Animal Science, Ahmadu Bello University, Mando, Kaduna, Nigeria.
Jazyk: angličtina
Zdroj: Journal of thermal biology [J Therm Biol] 2020 May; Vol. 90, pp. 102571. Date of Electronic Publication: 2020 Mar 19.
DOI: 10.1016/j.jtherbio.2020.102571
Abstrakt: The aim of the study was to evaluate haematological responses in Red Sokoto goats (RSGs) administered with L-glutamine during the hot-dry season. Experimental animals included 28 clinically healthy RSGs divided into treated group (n = 14); each administered L-glutamine at 0.2 g/kg body weight, dissolved in 10 mL distilled water, and control group (n = 14); each administered 10 mL distilled water, per os once daily for 21 days. The ambient temperature and relative humidity recorded daily for 4 weeks were used to calculate the temperature-humidity index. Three millilitres of blood sample was collected from each goat by jugular venipuncture for haematology, while rectal temperature (RT), heart rate (HR) and respiratory rate (RR) were also measured once weekly at weeks 0 (before), 1, 2, 3 (during) and 4 (after L-glutamine administration). The haematological, RT, HR and RR data obtained weekly were analysed using repeated-measures one-way ANOVA, followed by Tukey's post-hoc test to evaluate differences between periods, and between treated and control groups. The PCV, haemoglobin concentration and RBC count were higher (P < 0.05) in the treated group compared to the control group during the period of L-glutamine administration. These differences were sustained till week 4. Beginning from week 1 of the study, the total leucocyte count in treated group (10.10 ± 0.25 × 10 3 /μL) was higher (P < 0.05) than the count in control group (7.23 ± 0.41 × 10 3 /μL), this trend was also maintained throughout the study. The neutrophil:lymphocyte ratio during weeks 3 and 4 of the experiment was lower (P < 0.05) in the treated compared to the control group. RT was lower (P < 0.05) in treated group than the control group. In conclusion, L-glutamine administration ameliorated the adverse effects of heat stress on the haematological parameters in RSGs during the hot-dry season.
Competing Interests: Declaration of competing interest None.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: