Ecophysiological and biochemical traits of Quercus ilex trees growing under urban stress conditions

AGROCHIMICA ◽  
2020 ◽  
pp. 41-57
Author(s):  
T. Savi ◽  
L. Cotrozzi ◽  
F. Bove ◽  
S. Bertuzzi ◽  
C. Nali ◽  
...  
Keyword(s):  
Quercus Ilex ◽  
Stress Conditions ◽  
Biochemical Traits ◽  
Urban Stress

scholarly journals Deltamethrin Application on Pre-Weaned Calves Improves Feed Consumption, Stress and Fatigue Status under Heat Stress Conditions

Pathogens ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 85
Author(s):  
Konstantinos V. Arsenopoulos ◽  
Eleftherios Triantafillou ◽  
Athanasios I. Gelasakis ◽  
Elias Papadopoulos
Keyword(s):  
Heat Stress ◽  
Dairy Cattle ◽  
Serum Cortisol ◽  
Stress Conditions ◽  
Dairy Calves ◽  
Feed Consumption ◽  
Biochemical Traits ◽  
Stress Indicator ◽  
Holstein Breed ◽  
Cattle Herds

Fly infestation remains a universal problem for dairy cattle herds, affecting the animals’ health and welfare status. Pre-weaned dairy calves are significantly challenged by the direct and indirect consequences of severe fly infestation, heat-stress and their interaction, which contribute to a stressful and fatiguing environment. Among several physiological, behavioral, clinical and biochemical traits, serum cortisol (SC) and creatine kinase (CK) levels, as well as feed consumption can be used as valid indicators of potential stressful and fatiguing conditions and, therefore, can be efficiently used for stress analysis studies. Hence, the objective of the study was to assess the fly-repellency effect of deltamethrin on pre-weaned dairy calves exposed to heat stress conditions, as well as its association with SC, CK concentrations and feed consumption. Two commercial dairy cattle herds of the Holstein breed in Central Macedonia (Greece) were involved in the study during summer months and under heat stress conditions. Deltamethrin administration resulted in (i) a decreased fly population (100% Musca domestica) landing on pre-weaned dairy calves, (ii) a reduced SC (stress indicator) and CK (fatigue indicator) concentration, and (iii) an increased consumption of feedstuff in deltamethrin treated animals compared to the untreated ones.

scholarly journals Association of biochemical traits with grain yield in triticale genotypes under normal irrigation and drought stress conditions

2019 ◽  
Vol 13 (02) ◽  
pp. 272-281 ◽  
Author(s):  
Armin Saed-Moucheshi ◽  
◽  
Hooman Razi ◽  
Ali Dadkhodaie ◽  
Masoud Ghodsi ◽  
...  
Keyword(s):  
Drought Stress ◽  
Grain Yield ◽  
Stress Conditions ◽  
Biochemical Traits

Influence of different tropical stress conditions on biochemical parameters invarious broiler strains

2016 ◽  
Vol 50 (1) ◽  
Author(s):  
S. A. Amrutkar ◽  
V. K. Saxena ◽  
Simmi Tomar
Keyword(s):  
Heat Tolerance ◽  
Present Experiment ◽  
Biochemical Parameters ◽  
Stress Conditions ◽  
Broiler Chicks ◽  
Biochemical Traits ◽  
Naked Neck ◽  
Blood Biochemical ◽  
Exposure Trial ◽  
Naked Neck Gene

The present experiment was conducted to study the effect of different tropical stress conditions on biochemical traits in various broiler strains during 3 to 4 weeks of age. Introgressing some important major genes likes Naked neck (Na) and Frizzle (F) into broiler germplasm may substantially improve the heat tolerance. Hence, the experiment was designed to evaluate three indigenously developed broilers <italic>viz</italic>. CARIBRO-Tropicana (Naked neck and Frizzle gene bearing), CARIBRO-Mritunjai (Naked neck gene bearing) and CARIBRO-Vishal (Normal plumaged) under different THI (i.e. 72, 85 and 91) for 4 hours daily for 7 days. Total 324 broiler chicks (i.e. 36 chicks in each group) of 3 weeks of age were used in this study. The changes in blood biochemical parameters (i.e. Na, K, Glucose and ACTH) were examined in these experiments at 0<sup>th</sup>, 3<sup>rd</sup> and <sub>7</sub>th into exposure trials. The glucose, ACTH were observed lowest in frizzle and highest in normal plumaged birds under different THI. In experiment Na and K were observed higher in Frizzle and lowest in normal plumaged birds under different THI. The CARIBRO-Vishal showed highest stress as compared to other group. Higher the THI more severe was the effect on the traits. During the 7 day of exposure trial, birds of all the genetic group exhibited the phenomenon of acclimatization as reveled by the averages of various traits at different days into the exposure.

Self-Injurious Behavior vs. Nonsuicidal Self-Injury

Crisis ◽  
2012 ◽  
Vol 33 (2) ◽  
pp. 106-112 ◽  
Author(s):  
Christopher M. Bloom ◽  
Shareen Holly ◽  
Adam M. P. Miller
Keyword(s):  
Positive Reinforcement ◽  
Empirical Investigation ◽  
High Stress ◽  
Animal Research ◽  
Stress Conditions ◽  
Human Populations ◽  
Pharmacological Interventions ◽  
Self Injury ◽  
Cns Stimulant ◽  
Nonsuicidal Self Injury

Background: Historically, the field of self-injury has distinguished between the behaviors exhibited among individuals with a developmental disability (self-injurious behaviors; SIB) and those present within a normative population (nonsuicidal self-injury; NSSI),which typically result as a response to perceived stress. More recently, however, conclusions about NSSI have been drawn from lines of animal research aimed at examining the neurobiological mechanisms of SIB. Despite some functional similarity between SIB and NSSI, no empirical investigation has provided precedent for the application of SIB-targeted animal research as justification for pharmacological interventions in populations demonstrating NSSI. Aims: The present study examined this question directly, by simulating an animal model of SIB in rodents injected with pemoline and systematically manipulating stress conditions in order to monitor rates of self-injury. Methods: Sham controls and experimental animals injected with pemoline (200 mg/kg) were assigned to either a low stress (discriminated positive reinforcement) or high stress (discriminated avoidance) group and compared on the dependent measures of self-inflicted injury prevalence and severity. Results: The manipulation of stress conditions did not impact the rate of self-injury demonstrated by the rats. The results do not support a model of stress-induced SIB in rodents. Conclusions: Current findings provide evidence for caution in the development of pharmacotherapies of NSSI in human populations based on CNS stimulant models. Theoretical implications are discussed with respect to antecedent factors such as preinjury arousal level and environmental stress.

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