Effects of stress on the reproductive performance and physiology of rainbow trout (Oncorhynchus mykiss) by Wilfrido M. Contreras SaМЃnches

Cover of: Effects of stress on the reproductive performance and physiology of rainbow trout (Oncorhynchus mykiss) | Wilfrido M. Contreras SaМЃnches

Published .

Written in English

Read online


  • Rainbow trout -- Reproduction.,
  • Rainbow trout -- Effect of stress on.,
  • Rainbow trout -- Fertility.

Edition Notes

Book details

Statementby Wilfrido M. Contreras Sánches.
The Physical Object
Pagination78 leaves, bound. :
Number of Pages78
ID Numbers
Open LibraryOL15416935M

Download Effects of stress on the reproductive performance and physiology of rainbow trout (Oncorhynchus mykiss)

Thus, mild acute stresses applied to rainbow trout females may affect certain reproductive performance parameters such as timing of ovulation and relative fecundity; however, the progeny of such stressed females perform as well as controls with regard to juvenile growth and disease by: We investigated the effects of stress over the final stages (i.e.

the 3 months preceding ovulation) of sexual maturation of female rainbow trout, Oncorhynchus mykiss, on their reproductive performance and physiology and that of their by: 4. Effects of Stress on the Reproductive Performance and Physiology of Rainbow Trout (Oncorhynchus mykiss) INTRODUCTION.

This master's thesis consists of two chapters. Chapter 1, entitled "Effects of repeated, acute stress on the reproductive performance of rainbow trout. It is well established that stress is a serious threat to fish development and osmoregulation with significant effects on reproductive success.

In rainbow trout, repeated acute stress resulted in delayed ovulation and reduced egg size. Furthermore, female tilapia failed to spawn in crowded tanks where atresia was observed. In rainbow trout the magnitude of the cortisol response to stress shows both consistency over time and a moderate to high degree of heritability, and high responding (HR) and low responding (LR.

A W Wood, B D Johnston, A P Farrell, C J Kennedy, Effects of didecyldimethylammonium chloride (DDAC) on the swimming performance, gill morphology, disease resistance, and biochemistry of rainbow trout (Oncorhynchus mykiss), Canadian Journal of Fisheries and Aquatic Sciences, /f, 53, 11, (), ().

Stress generally resulted in elevated plasma cortisol, above the control. Fish responded to stress and exercise combined, with elevated lactate and [H +] which was sometimes associated with elevated plasma cortisol. These changes were combined with a depletion of the muscle adenylate pool.

For example, disturbance or handling may affect the timing of reproduction—accelerating or delaying it as the case may be—in species such as rainbow trout (Oncorhynchus mykiss); however, tilapia (Oreochromis niloticus) respond by acceleration or complete inhibition of reproduction, depending on the maturational stage when the stressor is experienced.

Effects of Haematococcus pluvialis in maternal diet on reproductive performance and egg quality in rainbow trout (Oncorhynchus mykiss). Animal Reproduction Science, Vol. Issue.p.

Animal Reproduction Science, Vol. Issue.p. This chapter will draw attention to the importance of performing more research on the effects of stress on the reproductive performance of fishes.

The subject will be approached from the point of view that reproduction may have a narrower tolerance to stress than any other life function, while enjoying at the same time a pivotal role in the.

To tease apart the effects of high baseline cortisol levels and stress-induced elevation of cortisol titers, we determined how varying degrees of cortisol elevation (i.e., acute and chronic) affected behavior, reproductive physiology, and reproductive success of adult female pink salmon (Oncorhynchus gorbuscha) relative to different states of.

The current study was performed to investigate the protective effects of dietary Haematococcus pluvialis (H. pluvialis) on the oxidative stress induced by arsenic in rainbow trout.

Heat stress affects the fertility and reproductive livestock performance by compromising the physiology reproductive tract, through hormonal imbalance, decreased oocyte quality and poor semen quality, and decreased embryo development and survival.

Heat stress decreases the secretion of luteinizing hormone and estradiol resulting in reduced length and intensity of estrus expression.

The effects of chronic plasma cortisol elevation on the feeding behaviour, growth, competitive ability, and swimming performance of juvenile rainbow trout. Physiol. Biochem.

Zool. 72, – [Google Scholar] Pottinger, T.G.; Carrick, T.R. Stress responsiveness affects dominant–subordinate relationships in rainbow trout.

Inshore-offshore migration occurs frequently in seahorse species, either because of prey opportunities or because they are driven by reproduction, and variations in water temperature may dramatically change migratory seahorse behavior and physiology.

The present study investigated the behavioral and physiological responses of the lined seahorse Hippocampus erectus under thermal stress and. Erfan Akbari Nargesi, Bahram Falahatkar, Mir Masoud Sajjadi, Dietary supplementation of probiotics and influence on feed efficiency, growth parameters and reproductive performance in female rainbow trout (Oncorhynchus mykiss) broodstock, Aquaculture Nutrition, /anu, 26, 1.

effect on swimming performance, but few authors have examined impacts to fish physiology and health. This study investigated how tags greater than 2% body mass affected the mortality, tag retention, swimming performance, and physiological indicators of stress in brook trout.

Stress Effects on the Body Diseases of the Reproductive System. When stress affects the immune system, the body can become vulnerable to infection. In the male anatomy, infections to the testes, prostate gland and urethra can affect normal male reproductive functioning.

munosuppressive effects of stress may be preceded by short-term enhancement, at least following acute stressors. Materials and Methods Fish Shasta strain rainbow trout (Oncor- hynchus mykiss), spawned in June ofwere raised at the Food Science and.

Skov et al. report on the effects of swimming under dietary restriction on growth in rainbow trout K. J., and Planas, J. “The stress and stress mitigation effects of exercise: cardiovascular, metabolic and skeletal muscle adjustments,” in Fish Physiology–Biology of Stress in Fish, Vol.

35, eds. Schreck, L. Tort, A. Ferguson, R. A., and B. Tufts. “Physiological Effects of Brief Air Exposure in Exhaustively Exercised Rainbow Trout (Oncorhynchus mykiss): Implications for ‘Catch and Release’ Fisheries.” Canadian Journal of Fisheries and Aquatic Sciences 49 (): – Google Scholar.

The rainbow trout endocrine system is sensitive to changes in annual day length, which is likely the principal environmental cue controlling its reproductive cycle. This study focuses on the endocrine regulation of vitellogenin (Vg) protein synthesis, which is the major egg yolk precursor in this fish species.

Furthermore, in addition to reproductive performance the incorporation of n-3 and n-6 PUFAs into ova and the subsequent trans-generational effects on offspring survival were also studied, in order to assess whether female trout exclusively reared on a.

Effects of triploidy on genetic gains in a rainbow trout (Oncorhynchus mykiss) population selectively bred for diploid growth performance - (Peer Reviewed Journal) Leeds, T.D., Weber, G.M.

Effects of triploidization on genetic gains in a rainbow trout (Oncorhynchus mykiss) population selectively bred for diploid growth performance. Comparative Biochemistry and Physiology Part D: Genomics and Proteomics, Vol. 30, Issue., p. Effects of different dietary oils on egg quality and reproductive performance in rainbow trout Oncorhynchus supplemented with Saccharina latissima influence the expression of genes related to lipid metabolism and oxidative stress.

The negative cortisol-mediated effects of stress on reproduction also do not ap- pear mediated through inhibition of GTH secretion, as suggested by studies on the rainbow trout, Oncorhynchus mykiss,byPank- hurst and Van Der Kraak ().

with an additive effect of −42 ng/mL (approximately genetic SD) is segregating in this rainbow trout broodstock population. These findings provide a basis for designing and executing genome-wide linkage stud-ies to identify QTL for stress response in rainbow trout. Gossypol is an antifertilizing agent in males and females.

However, gossypol and its metabolite, gossypolone, have also gained interest because of their anticarcinogenic activities. This paper examines for the first time both enantiomers of tissue gossypol and gossypolone in mature rainbow trout fed two diets containing low (15%) and high (60%) levels of cottonseed meal (CM) for 9 months.

The. Project Methods Fertility of farmed female rainbow trout will be determined in advance by assessing embryonic survival rates, with fertile and sub-fertile females appropriately tagged for subsequent experimentation.

To properly assess how cortisol is inhibiting the reproductive axis fertile female rainbow trout will be implanted with either vehicle alone (total n = 40) or vehicle with cortisol. The stimulatory effect of exogenous steroids on the gonadotropic activity in immature male fish has been demonstrated in various species, both at the brain and/or pituitary and/or blood and gonadal levels (rainbow trout (Atteke et al., ; Magri et al., ), platyfish (Schreibman et al., ), African catfish (Cavaco et al., ), seabass.

Manuel Gesto, Consistent individual competitive ability in rainbow trout as a proxy for coping style and its lack of correlation with cortisol responsiveness upon acute stress, Physiology & Behavior, /h, (), (). Beth M. Cleveland, Gregory M. Weber Effects of insulin-like growth factor-I, insulin, and leucine on protein turnover and ubiquitin ligase expression in rainbow trout primary myocytes, American Journal of Physiology-Regulatory, Integrative and Comparative Physiologyno.2 2 (Feb ): R–R @inproceedings{AndersonPhysiologyOS, title={Physiology of Stress Responses in Teleost Fish}, author={A.

Anderson}, year={} } Are we missing a mineralocorticoid in teleost fish. Effects of cortisol, deoxycorticosterone and aldosterone on osmoregulation, gill Na+,K+ -ATPase activity and. Assessing fishing effects on chondrichthyan populations has predominantly focused on quantifying mortality rates.

Consequently, sub-lethal effects of capture stress on the reproductive. Read "Stress-induced inhibition of recruitment of ovarian follicles for vitellogenic growth and interruption of spawning cycle in the fish Oreochromis mossambicus, Fish Physiology and Biochemistry" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Stress and Development of Allostatic Load Perception of stress is influenced by one's experiences, genetics, and behavior. When the brain perceives stress, physiologic and behavioral responses are initiated leading to allostasis and adaptation. Over time, allostatic load can accumulate, and the overexposure to neural, endocrine.

Carl B. Schreck is an American biologist specializing in comparative endocrinology of fishes, best known for his contributions to our knowledge of stress in fish.

Since he has been a professor at Oregon State University, holding the position of senior scientist and leader (since ) of the Oregon Cooperative Fish and Wildlife Research Unit. Goals / Objectives The overall objective of this work is to increase the profitability of the aquaculture industry in the Pacific Northwest, specifically the aquaculture of rainbow trout.

The objectives of the present proposal are to: develop new vaccines and diagnostics for the diseases of trout; investigate the basic immunology of the trout; address problems associated with aquaculture of.

Casillas, E. and L. Smith. “Effect of stress on blood coagulation and haematology in rainbow trout (Salmo gairdneri).” Journal of Fish Biology 10 (): – Clapp, D. and R. Clark. “Hooking mortality of Smallmouth bass caught on live minnows and artificial spinners.” N. American Journal of Fisheries Management 9 ( The hypothalamic-pituitary-adrenal (HPA) axis, when activated by stress, exerts an inhibitory effect on the female reproductive system.

Corticotropin-releasing hormone (CRH) inhibits hypothalamic gonadotropin-releasing hormone (GnRH) secretion, and glucocorticoids inhibit pituitary luteinizing hormone and ovarian estrogen and progesterone. The rainbow trout (Oncorhynchus mykiss) is a trout and species of salmonid native to cold-water tributaries of the Pacific Ocean in Asia and North America.

The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coastal rainbow trout (O. m. irideus) or Columbia River redband trout (O. m. gairdneri) that usually returns to fresh water to spawn after living two.We investigated the effects of two resin acids, isopimaric acid and dehydroabietic acid, which are both important components of wood industry effluents, on the intracellular pH of rainbow trout (Onco.Effect of Zinc on motility and duration of O.

mykiss sperm is presented in figures 3,4. The trials indicated that highest motility (%) and duration of motility ( s) were obtained from control group in activation solution containing NaCl (p).For activation solution containing NaHCO 3, highest motility (%) and duration of motility ( s) were in a concentration of 1 mM (p.


57724 views Thursday, December 3, 2020