Effects of qualitative and quantitative food restriction treatments on feeding motivational state and general activity level of growing broiler breeders

2000 ◽  
Vol 69 (2) ◽  
pp. 135-147 ◽  
Author(s):  
C.J Savory ◽  
J.-M Lariviere
1965 ◽  
Vol 16 (3) ◽  
pp. 693-696 ◽  
Author(s):  
L. Glenn Collins

In two experiments involving 40 albino rats and two dosage levels of morphine sulfate it was found that relatively high analgesic dosages of morphine significantly depressed general activity level in the revolving drum. Also, there was a significant interaction between drug effect and hunger drive. In the case of moderate analgesic doses (7 mg/kg) no systematic effect of morphine on activity-wheel performance was noted.


1979 ◽  
Vol 48 (3_suppl) ◽  
pp. 1299-1305
Author(s):  
Patrick Maloney ◽  
Robert Deitchman ◽  
Kevin Walsh ◽  
Richard H. Haude

The effects of crowding and estrus cycling upon visual observing behavior and general activity level in the albino rat were investigated. Experimental groups were composed of non-estrus or estrus females and were subjected to one of three different crowding conditions. Measures of the frequency and duration of observing of photographic slides were taken as well as a measure of general activity. Slides were composed of either geometric patterns or color photographs depicting rats in various social postures. Contrary to previous reports, observing measures did not vary with levels of crowding or stage of estrus. There were, however, differences among the various crowded conditions on a measure of general activity. Relatively short-term crowding was shown to affect estrus based cyclical variation in activity and observing.


Behaviour ◽  
1991 ◽  
Vol 118 (1-2) ◽  
pp. 26-41 ◽  
Author(s):  
Terra Ziporyn ◽  
Martha K. McClintock

AbstractThe most frequent form of social interaction between pairs of wild or domestic rats (Rattus norvegicus) was passing behaviour in the narrow burrows and open field of seminatural environments. This behaviour occurs when a moving rat approaches another, either head-to-head or head-to-tail; the passed animal freezes while the passing rat continues, side touching side. The social dominance manifest by this behaviour correlated significantly with fighting dominance, particularly among female wild and domestic rats. In addition, dominance during displacements for access to food and water correlated with the dominance relationship in passing within pairs of domestic female rats. Although both passing and general activity had the same crepuscular daily rhythm, passing dominance did not correlate with individual differences in general activity level. Thus passing indicates social order and is not simply a by-product of general activity. Because passing occurs ten times more frequently than fights, in future studies it may be a more powerful indicator of female dominance and social order.


2011 ◽  
Vol 26 (S2) ◽  
pp. 905-905
Author(s):  
S. Hodgkinson ◽  
J. Steyer ◽  
M. Jandl ◽  
W.P. Kaschka ◽  

IntroductionBasal ganglia (BG) activity plays an important role in action selection and reinforcement learning. Inputs from and to other areas of the brain are modulated by a number of neurotransmitter pathways in the BG. Disturbances in the normal function of the BG may play a role in the aetiology of psychiatric disorders such as schizophrenia and bipolar disorder.AimsDevelop a simple animal model to evaluate interactions between glutamatergic, dopaminergic, serotonergic and GABAergic neurones in the modulation of action selection and reinforcement learning.ObjectivesTo characterise the effects of changing dopaminergic and serotonergic activity on action selection and reinforcement learning in an animal model.MethodsThe food seeking / consummation (FSC) activity of the gastropod Planorbis corneus was suppressed by operant conditioning using a repeated unconditioned stimulus-punishment regime. The effects of elevated serotonin or dopamine levels (administration into cerebral, pedal and buccal ganglia), on operantly-conditioned FSC activity was assessed.ResultsOperantly-conditioned behaviour was reversed by elevated ganglia serotonin levels but snails showed no food consummation motor activity in the absence of food. In contrast, elevated ganglia dopamine levels in conditioned snails elicited food consummation motor movements in the absence of food but not orientation towards a food source.ConclusionsThe modulation of FSC activity elicited by reinforcement learning is subject to hierarchical control in gastropods. Serotoninergic activity is responsible establishing the general activity level whilst dopaminergic activity appears to play a more localised and subordinate ‘command’ role.


1986 ◽  
Vol 59 (3) ◽  
pp. 1299-1306 ◽  
Author(s):  
Lorie R. Skarpness ◽  
David K. Carson

This study examined different aspects of children's psychological adjustment within 8 traditional kindergarten classrooms in relation to both characteristics of temperament and communicative abilities. The sample consisted of 122 boys and 95 girls ( N = 217, M age = 70 mo.) from middle-class Caucasian families residing in the Upper Midwest. Communicative competence and the temperament dimensions of approach/withdrawal, mood and general activity level were significantly predictive of various manifestations of adjustment/maladjustment during the early phases of kindergarten, including peer relations, dependency, hostility, and productivity. In addition, the sex and age of the children were predictive of their dependency, productivity, and withdrawal as evaluated by teachers within the school environment.


Entropy ◽  
2021 ◽  
Vol 23 (2) ◽  
pp. 239
Author(s):  
Yansong Gu ◽  
Xinya Wang ◽  
Can Zhang ◽  
Baiyang Li

Obtaining key and rich visual information under sophisticated road conditions is one of the key requirements for advanced driving assistance. In this paper, a newfangled end-to-end model is proposed for advanced driving assistance based on the fusion of infrared and visible images, termed as FusionADA. In our model, we are committed to extracting and fusing the optimal texture details and salient thermal targets from the source images. To achieve this goal, our model constitutes an adversarial framework between the generator and the discriminator. Specifically, the generator aims to generate a fused image with basic intensity information together with the optimal texture details from source images, while the discriminator aims to force the fused image to restore the salient thermal targets from the source infrared image. In addition, our FusionADA is a fully end-to-end model, solving the issues of manually designing complicated activity level measurements and fusion rules existing in traditional methods. Qualitative and quantitative experiments on publicly available datasets RoadScene and TNO demonstrate the superiority of our FusionADA over the state-of-the-art approaches.


1965 ◽  
Vol 17 (3) ◽  
pp. 691-694 ◽  
Author(s):  
Barbara J. Powell ◽  
Louis K. Martin ◽  
Dennis K. Kamano

The purpose of these experiments was to study the effects of two “fear-reducing” drugs, amobarbital sodium and meprobamate, on the acquisition of a conditioned avoidance response in albino rats, and how this response is related to general activity level and freezing behavior. Both drugs facilitated acquisition of the avoidance response and increased activity level as measured by the number of spontaneous inter-trial hurdle crossings. Thus, these results seemed at variance with Mowrer's theory regarding the relationship of fear to the avoidance response. However, the results were compatible with the theory that the relationship of performance to motivation is an inverted U-shaped function, which suggests that amobarbital and meprobamate exerted their facilitating effects on avoidance performance by obtunding the strong fear-freezing response which is known to be incompatible with the emission of the avoidance response.


2020 ◽  
Vol 8 (2) ◽  
pp. 91-102
Author(s):  
Ali Makmur ◽  
Maryega Antoni ◽  
Arfa’i Arfa’i ◽  
Rahmi Wati

This study aimed to determine the partnership pattern and the income of broiler breeders partnering with PT. Karya Semangat Mandiri (KSM) and Torang Poultry Shop in East Payakumbuh District. The census method was used in this study through a survey method and direct observation in the field using a questionnaire involving 12 broiler breeders who partnered with PT. KSM and ten broiler breeders partnered with Torang Poultry Shop. Descriptive qualitative and quantitative analyses were used to analyze the data by observing the patterns and calculating the costs, income, and revenues. The results of the study indicated that the breeders partnered with PT. KSM adopted a plasma core partnership pattern with a written agreement, and the farmers were required to place a security deposit to the company. The farmer who partnered with Torang Poultry Shop used a profit-sharing pattern in which the benefits were equally shared. The agreement was not in written form, and the farmers did not provide a security deposit. The income of farmers partnered with PT. KSM was higher compared to income of the farmers partnered with the Torang Poultry Shop


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