Alopecia in four kittens caused by abnormal maternal licking behaviour

2015 ◽  
Vol 93 (11) ◽  
pp. 417-419 ◽  
Author(s):  
N Fanton ◽  
M Michelazzi ◽  
L Cornegliani
Keyword(s):  
2011 ◽  
Vol 41 (5) ◽  
pp. 563-569 ◽  
Author(s):  
Alain Bousquet-Mélou ◽  
Philippe Jacquiet ◽  
Hervé Hoste ◽  
Julien Clément ◽  
Jean-Paul Bergeaud ◽  
...  

2008 ◽  
Vol 53 (4) ◽  
pp. 361-368 ◽  
Author(s):  
G. Bejat ◽  
D. Yao ◽  
J.W. Hu ◽  
G.M. Murray ◽  
B.J. Sessle

2001 ◽  
Vol 31 (14) ◽  
pp. 1687-1692 ◽  
Author(s):  
Céline M Laffont ◽  
Michel Alvinerie ◽  
Alain Bousquet-Mélou ◽  
Pierre-Louis Toutain

2020 ◽  
Author(s):  
Kate Z Peters ◽  
Andrew M J Young ◽  
James E McCutcheon

AbstractDisruptions in attention, salience and increased distractibility are implicated in multiple psychiatric conditions. The ventral tegmental area (VTA) is a potential site for converging information about external stimuli and internal states to be integrated and guide adaptive behaviours. Given the dual role of dopamine signals in both driving ongoing behaviours (e.g. feeding) and monitoring salient environmental stimuli, understanding the interaction between these functions is crucial. Here we investigate VTA neuronal activity during distraction from ongoing feeding. We developed a task to assess distraction exploiting self-paced licking in rats. Rats trained to lick for saccharin were given a distraction test, in which three consecutive licks within 1 second triggered a random distractor (e.g. light and tone stimulus). On each trial they were quantified as distracted or not based on the length of their pauses in licking behaviour. We expressed GCaMP6s in VTA neurons and used fibre photometry to record calcium fluctuations during this task as a proxy for neuronal activity. Distractor stimuli caused rats to interrupt their consumption of saccharin, a behavioural effect which quickly habituated with repeat testing. VTA neural activity showed consistent increases to distractor presentations and, furthermore, these responses were greater on distracted trials compared to non-distracted trials. Interestingly, neural responses show a slower habituation than behaviour with consistent VTA responses seen to distractors even after they are no longer distracting. These data highlight the complex role of the VTA in maintaining ongoing appetitive and consummatory behaviours while also monitoring the environment for salient stimuli.


2021 ◽  
Author(s):  
Eluned Broom ◽  
Vivian Imbriotis ◽  
Frank Sengpiel ◽  
William M Connelly ◽  
Adam Ranson

A long-range circuit linking anterior cingulate cortex (ACC) to primary visual cortex (V1) has been previously proposed to mediate visual selective attention in mice during visually guided behaviour. Here we used in vivo two-photon functional imaging to measure endogenous activity of ACC neurons projecting to layer 1 of V1 (ACC-V1axons) in mice either passively viewing stimuli or performing a go/no-go visually guided task. We observed that while ACC-V1axons were recruited under these conditions, this was not linked to enhancement of neural or behavioural measures of sensory coding. Instead, ACC-V1axon activity was observed to be associated with licking behaviour, modulated by reward, and biased towards task relevant sensory cortex.


Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1153
Author(s):  
Gamaliel Simanungkalit ◽  
Jamie Barwick ◽  
Frances Cowley ◽  
Robin Dobos ◽  
Roger Hegarty

Identifying the licking behaviour in beef cattle may provide a means to measure time spent licking for estimating individual block supplement intake. This study aimed to determine the effectiveness of tri-axial accelerometers deployed in a neck-collar and an ear-tag, to characterise the licking behaviour of beef cattle in individual pens. Four, 2-year-old Angus steers weighing 368 ± 9.3 kg (mean ± SD) were used in a 14-day study. Four machine learning (ML) algorithms (decision trees [DT], random forest [RF], support vector machine [SVM] and k-nearest neighbour [kNN]) were employed to develop behaviour classification models using three different ethograms: (1) licking vs. eating vs. standing vs. lying; (2) licking vs. eating vs. inactive; and (3) licking vs. non-licking. Activities were video-recorded from 1000 to 1600 h daily when access to supplement was provided. The RF algorithm exhibited a superior performance in all ethograms across the two deployment modes with an overall accuracy ranging from 88% to 98%. The neck-collar accelerometers had a better performance than the ear-tag accelerometers across all ethograms with sensitivity and positive predictive value (PPV) ranging from 95% to 99% and 91% to 96%, respectively. Overall, the tri-axial accelerometer was capable of identifying licking behaviour of beef cattle in a controlled environment. Further research is required to test the model under actual grazing conditions.


1989 ◽  
Vol 29 (6) ◽  
pp. 771
Author(s):  
PJS Hasker

The value of melengestrol acetate (MGA) as a means of suppressing oestrus and its administration by utilising the licking behaviour of the animal were investigated in 3 groups of 30 Sahiwal cross heifers. For 63 days 0.5 mg MGA was either individually fed daily (fed group) or applied daily with molasses to the midrib of heifers to be licked off (licking group). The third group received no treatment (control group). When treatments ceased, fertile bulls were introduced for 11 weeks. The heifers were then slaughtered. Control animals exhibited oestrus regularly throughout the treatment period while those in the treated groups failed to exhibit oestrus after the first week. Post treatment oestrus was synchronised in the fed group but only partial synchronisation occurred in the licking group. Pregnancy rates from the first post-treatment oestrus of 63, 17 and 33% for the control, fed and licking groups respectively were significantly different (P<0.01). Pregnancy rates of 87, 60 and 80% from the first plus second post-treatment oestrus for the control, fed and licking groups respectively also differed significantly (P<0.05). There was no significant difference in the cumulative pregnancy rates after the third post-treatment oestrus. This study demonstrated that daily oral administration of MGA suppresses oestrus in heifers, but pregnancy rates following cessation of treatment are depressed. Application of MGA with molasses to an area on the coat to exploit the licking behaviour of the animal appeared successful. However, the practicability of the technique needs verification under extensive grazing conditions.


1985 ◽  
Vol 85 (2) ◽  
pp. 240-243 ◽  
Author(s):  
S�ren Korsgaard ◽  
Uffe Juul Povlsen ◽  
Axel Randrup

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