The effect of seasonality on normal haematological and innate immune parameters of rainbow trout Oncorhynchus mykiss L. 2008

A L Morgan, and K D Thompson, and N A Auchinachie, and H Migaud
Institute of Aquaculture, University of Stirling, Stirling, Scotland FK9 4LA, United Kingdom. a.l.morgan@stir.ac.uk

It is well established that seasonality dominates the life history of fish by controlling the timing of physiological events such as reproduction, food intake, locomotor activity and growth performance. Seasonal differences in immune competence and prevalence of disease have been well documented in humans. The aim of this study was to determine if season influences the immune response of rainbow trout (Oncorhynchus mykiss L.). Thus, a 12-month trial was carried out in which plasma lysozyme activity and respiratory burst of head kidney macrophages (two innate immune parameters) and total red and white blood cell counts (two haematological parameters) were monitored at monthly intervals. Since photoperiodic information is thought to be conveyed via melatonin secretion, plasma melatonin levels were also measured at four seasonal points (day and night). A general seasonal influence was observed in the parameters measured in these fish, with the exception of respiratory burst activity of head kidney macrophages, with the parameters highest in summer and lowest in winter for total white blood cell counts and lysozyme activity.

UI MeSH Term Description Entries
D007113 Immunity, Innate The capacity of a normal organism to remain unaffected by microorganisms and their toxins. It results from the presence of naturally occurring ANTI-INFECTIVE AGENTS, constitutional factors such as BODY TEMPERATURE and immediate acting immune cells such as NATURAL KILLER CELLS. Immunity, Native,Immunity, Natural,Immunity, Non-Specific,Resistance, Natural,Innate Immune Response,Innate Immunity,Immune Response, Innate,Immune Responses, Innate,Immunity, Non Specific,Innate Immune Responses,Native Immunity,Natural Immunity,Natural Resistance,Non-Specific Immunity
D007958 Leukocyte Count The number of WHITE BLOOD CELLS per unit volume in venous BLOOD. A differential leukocyte count measures the relative numbers of the different types of white cells. Blood Cell Count, White,Differential Leukocyte Count,Leukocyte Count, Differential,Leukocyte Number,White Blood Cell Count,Count, Differential Leukocyte,Count, Leukocyte,Counts, Differential Leukocyte,Counts, Leukocyte,Differential Leukocyte Counts,Leukocyte Counts,Leukocyte Counts, Differential,Leukocyte Numbers,Number, Leukocyte,Numbers, Leukocyte
D008550 Melatonin A biogenic amine that is found in animals and plants. In mammals, melatonin is produced by the PINEAL GLAND. Its secretion increases in darkness and decreases during exposure to light. Melatonin is implicated in the regulation of SLEEP, mood, and REPRODUCTION. Melatonin is also an effective antioxidant.
D009113 Muramidase A basic enzyme that is present in saliva, tears, egg white, and many animal fluids. It functions as an antibacterial agent. The enzyme catalyzes the hydrolysis of 1,4-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in peptidoglycan and between N-acetyl-D-glucosamine residues in chitodextrin. EC 3.2.1.17. Lysozyme,Leftose,N-Acetylmuramide Glycanhydrolase,Glycanhydrolase, N-Acetylmuramide,N Acetylmuramide Glycanhydrolase
D001835 Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. Body Weights,Weight, Body,Weights, Body
D002940 Circadian Rhythm The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli. Diurnal Rhythm,Nyctohemeral Rhythm,Twenty-Four Hour Rhythm,Nycthemeral Rhythm,Circadian Rhythms,Diurnal Rhythms,Nycthemeral Rhythms,Nyctohemeral Rhythms,Rhythm, Circadian,Rhythm, Diurnal,Rhythm, Nycthemeral,Rhythm, Nyctohemeral,Rhythm, Twenty-Four Hour,Rhythms, Circadian,Rhythms, Diurnal,Rhythms, Nycthemeral,Rhythms, Nyctohemeral,Rhythms, Twenty-Four Hour,Twenty Four Hour Rhythm,Twenty-Four Hour Rhythms
D004906 Erythrocyte Count The number of RED BLOOD CELLS per unit volume in a sample of venous BLOOD. Blood Cell Count, Red,Erythrocyte Number,Red Blood Cell Count,Count, Erythrocyte,Counts, Erythrocyte,Erythrocyte Counts,Erythrocyte Numbers
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012621 Seasons Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Seasonal Variation,Season,Seasonal Variations,Variation, Seasonal,Variations, Seasonal

Related Publications

A L Morgan, and K D Thompson, and N A Auchinachie, and H Migaud
August 2017, Fish & shellfish immunology,
A L Morgan, and K D Thompson, and N A Auchinachie, and H Migaud
October 2014, Journal of animal physiology and animal nutrition,
A L Morgan, and K D Thompson, and N A Auchinachie, and H Migaud
May 2004, Developmental and comparative immunology,
A L Morgan, and K D Thompson, and N A Auchinachie, and H Migaud
November 2004, Diseases of aquatic organisms,
A L Morgan, and K D Thompson, and N A Auchinachie, and H Migaud
June 2008, Fish physiology and biochemistry,
A L Morgan, and K D Thompson, and N A Auchinachie, and H Migaud
January 2015, Neuro endocrinology letters,
A L Morgan, and K D Thompson, and N A Auchinachie, and H Migaud
March 1999, Veterinary immunology and immunopathology,
A L Morgan, and K D Thompson, and N A Auchinachie, and H Migaud
November 2006, Fish & shellfish immunology,
A L Morgan, and K D Thompson, and N A Auchinachie, and H Migaud
June 2020, Probiotics and antimicrobial proteins,
Copied contents to your clipboard!