scholarly journals The Use of Environmental Enrichments Affects Performance and Behavior of Growing Rabbits Housed in Collective Pens

Animals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 537 ◽  
Author(s):  
Trocino ◽  
Zomeño ◽  
Filiou ◽  
Birolo ◽  
White ◽  
...  
Keyword(s):  
Growth Performance ◽  
Open Field ◽  
Group Size ◽  
Field Test ◽  
Animal Behavior ◽  
Open Field Test ◽  
Experimental Conditions ◽  
Large Group ◽  
Production Parameters ◽  
And Behavior

This study assessed the effects of an elevated plastic-slatted platform and/or a plastic hiding tube in collective pens with large group sizes (27 or 36 rabbits/pen; 16 rabbits/m2) on the performance and welfare of rabbits kept from weaning (at 33 days of age) to slaughter (at 68 or 75 days of age). Growth performance, injuries, and behavior (video recorded for 24 h) of rabbits (n = 504) were recorded. The platform allowed rabbits to adopt the rearing position more frequently (+0.14 events during 2 min every 30 min across 24 h) and to rest with stretched body for longer (+3.8% of observed time) (p ≤ 0.001). Production parameters and reactivity at the open field test were not modified, but the occurrence of injured rabbits at the trial end was higher in pens with platforms (+8.9%; p ≤ 0.01). This result was possibly related to the higher group size in pens with platforms (36 rabbits) compared to those without platforms (27 rabbits). The inclusion of the tube decreased growth (−2.2 g/d; p ≤ 0.05), whereas it was scarcely used by rabbits and it did not substantially change their behavior or the occurrence of injuries. In conclusion, under the experimental conditions of this study, elevated platforms worked as a useful structural enrichment in view of animal behavior but negatively impacted on the rate of injuries, whereas the usefulness of the tube was not confirmed.

scholarly journals Behavioral effects of antiepileptic drugs in rats: Are the effects on mood and behavior detectable in open-field test?

Seizure ◽  
2017 ◽  
Vol 52 ◽  
pp. 35-40 ◽  
Author(s):  
Eva Zimcikova ◽  
Julius Simko ◽  
Iva Karesova ◽  
Jan Kremlacek ◽  
Jana Malakova
Keyword(s):  
Antiepileptic Drugs ◽  
Open Field ◽  
Field Test ◽  
Open Field Test ◽  
Behavioral Effects ◽  
And Behavior

scholarly journals Hair whorls of Holstein Friesian heifers and affects on growth and behaviour

2007 ◽  
Vol 50 (4) ◽  
pp. 374-380
Author(s):  
J. Broucek ◽  
P. Kisac ◽  
S. Mihina ◽  
A. Hanus ◽  
M. Uhrincat ◽  
...  
Keyword(s):  
Body Weight ◽  
Dairy Cattle ◽  
Open Field ◽  
Field Test ◽  
Open Field Test ◽  
Field Tests ◽  
Experimental Conditions ◽  
Holstein Friesian

Abstract. The aim of this study was to investigate whether the growth, number of crossed squares in the open-field test and time of traversing the maze in the maze are affected by the height position of they facial whorl in heifers which were kept in experimental conditions. Fifty-eight Holstein heifers were used. The hair whorl position was determined as hair whorl high, middle and low. Heifers with a high whorl had significantly higher body weight at days 360 (P<0.05) and 540 (P<0.01) and average daily gains from birth to 21 months (P<0.001) and from the 6th to 21st months (P<0.01) of age. We did not find any significant differences among hair whorl position groups either in open-field tests or in the maze. The present results show that the growth is influenced in the investigated dairy cattle by height of their facial whorl.

scholarly journals Toxicity and Neuropharmacological Effects of Elenine

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Eduardo Navarro ◽  
S. J. Alonso ◽  
R. Navarro
Keyword(s):  
Open Field ◽  
Field Test ◽  
Chemical Structure ◽  
Open Field Test ◽  
Control Group ◽  
General Behaviour ◽  
Similar Chemical ◽  
Sedative Effects ◽  
Traction Test ◽  
Central Depressant

Elenine is the aglycone of elenoside, a cytotoxic arylnaphthalene lignan (NSC 644013-W/1) derived fromJusticia hyssopifolia. (Family: Acanthaceae). Elenoside is a β-D-glucoside, with a similar chemical structure to etoposide, exhibiting central depressant activity. In the present study, elenine was given to mice and rats at doses of 10, 20, and 40 mg/kg. Acute toxicity (24 h) and general behaviour in mice was studied as well as its effects on muscular relaxant activity, locomotor activity (Varimex test), and the open-field test and were compared with 10 mg/kg of chlorpromazine. Elenine produced a reduction in the permanence time in muscular relaxant activity (traction test). Spontaneous activity was lower in the Varimex test. The ambulation and rearing were lower compared with the control group, and an increase in boluses was observed in the open-field test. Thus, it can be concluded that elenine has central sedative effects at lower doses than those used with elenoside and has a possible application in conditions of anxiety.

scholarly journals Participation ofGABAAChloride Channels in the Anxiolytic-Like Effects of a Fatty Acid Mixture

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Juan Francisco Rodríguez-Landa ◽  
Rosa Isela García-Ríos ◽  
Jonathan Cueto-Escobedo ◽  
Blandina Bernal-Morales ◽  
Carlos M. Contreras
Keyword(s):  
Open Field ◽  
Field Test ◽  
Chloride Channels ◽  
Wistar Rats ◽  
Elevated Plus Maze ◽  
Open Field Test ◽  
Acid Mixture ◽  
Plus Maze ◽  
Gaba Binding ◽  
Defensive Burying

Human amniotic fluid and a mixture of eight fatty acids (FAT-M) identified in this maternal fluid (C12:0, lauric acid, 0.9 μg%; C14:0, myristic acid, 6.9 μg%; C16:0, palmitic acid, 35.3 μg%; C16:1, palmitoleic acid, 16.4 μg%; C18:0, stearic acid, 8.5 μg%; C18:1cis, oleic acid, 18.4 μg%; C18:1trans, elaidic acid, 3.5 μg%; C18:2, linoleic acid, 10.1 μg%) produce anxiolytic-like effects that are comparable to diazepam in Wistar rats, suggesting the involvement ofγ-aminobutyric acid-A (GABAA) receptors, a possibility not yet explored. Wistar rats were subjected to the defensive burying test, elevated plus maze, and open field test. In different groups, threeGABAAreceptor antagonists were administered 30 min before FAT-M administration, including the competitive GABA binding antagonist bicuculline (1 mg/kg),GABAAbenzodiazepine antagonist flumazenil (5 mg/kg), and noncompetitiveGABAAchloride channel antagonist picrotoxin (1 mg/kg). The FAT-M exerted anxiolytic-like effects in the defensive burying test and elevated plus maze, without affecting locomotor activity in the open field test. TheGABAAantagonists alone did not produce significant changes in the behavioral tests. Picrotoxin but not bicuculline or flumazenil blocked the anxiolytic-like effect of the FAT-M. Based on the specific blocking action of picrotoxin on the effects of the FAT-M, we conclude that the FAT-M exerted its anxiolytic-like effects throughGABAAreceptor chloride channels.

Acute effects of ethanol on behavioral responses of male and female zebrafish in the open field test with the influence of a non-familiar object

2021 ◽  
pp. 104474
Author(s):  
Thiele P. Souza ◽  
Francini Franscescon ◽  
Flavia V. Stefanello ◽  
Talise E. Müller ◽  
Laura W. Santos ◽  
...  
Keyword(s):  
Open Field ◽  
Field Test ◽  
Open Field Test ◽  
Behavioral Responses ◽  
Familiar Object ◽  
Acute Effects ◽  
Male And Female ◽  
Female Zebrafish
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