scholarly journals Mirrors Improve Rabbit Natural Behavior in a Free-Range Breeding System

Animals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 533 ◽  
Author(s):  
Vincenzo Mastellone ◽  
Fulvia Bovera ◽  
Nadia Musco ◽  
Valentina Panettieri ◽  
Giovanni Piccolo ◽  
...  
Keyword(s):  
Small Groups ◽  
Breeding System ◽  
Serum Cortisol ◽  
Wire Mesh ◽  
Behavioral Repertoire ◽  
Natural Behavior ◽  
Free Range ◽  
Stress Markers ◽  
Mirror Group ◽  
Locomotion Activity

The aim of this research was to evaluate the possible usefulness of mirrors in improving rabbit behavior in a free-range breeding system. Three groups (each consisting of nine replicates of three animals) were compared: isolated, isolated with mirrors and separated by a wire mesh (possible visual and olfactory contacts). Rabbits allowed to have a visual and olfactory contact showed a significantly higher expression of important natural behaviors (olfactory investigation, gnawing, alertness, stretching, locomotion) compared to the isolated rabbits (with or without mirrors); while rabbits in the mirror group showed higher allo-grooming activity than those isolated and no different locomotion activity than those separated by wire mesh. Thus, mirrors seemed to be able to modify the behavioral repertoire of isolated rabbits by acting on social perception in rabbits reared in small groups in a free-range system. Nevertheless, despite it being advisable to use a combination of different indicators in order to assess the stress level of an animal, the accuracy of serum cortisol, as well as of some secondary stress markers assay, appeared to be limited in this type of breeding.

scholarly journals PSIX-5 Behavioral Repertoire of Commercial Layers Under Free Range, Semi-Intensive and Intensive Rearing Systems.

2018 ◽  
Vol 96 (suppl_3) ◽  
pp. 16-17
Author(s):  
A Mahmud ◽  
A Husnain ◽  
S Mehmood ◽  
K Javed ◽  
M Khan ◽  
...  
Keyword(s):  
Behavioral Repertoire ◽  
Free Range ◽  
Intensive Rearing

scholarly journals Free-Range Rearing Density for Male and Female Milanino Chickens: Growth Performance and Stress Markers

2019 ◽  
Vol 28 (4) ◽  
pp. 1342-1348 ◽  
Author(s):  
Fabio Mosca ◽  
Luisa Zaniboni ◽  
Nicolaia Iaffaldano ◽  
Ahmad Abdel Sayed ◽  
Maria G. Mangiagalli ◽  
...  
Keyword(s):  
Growth Performance ◽  
Male And Female ◽  
Free Range ◽  
Stress Markers ◽  
Rearing Density

PSIX-25 Feed and water deprivation at weaning and subsequent heat stress impacts serum and ileal markers of gastrointestinal integrity in nursery pigs

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 496-497
Author(s):  
Nathan L Horn ◽  
Adrienne Woodward ◽  
Kola Ajuwon ◽  
Layi Adeola
Keyword(s):  
Gene Expression ◽  
Heat Stress ◽  
Water Deprivation ◽  
Intestinal Barrier ◽  
Serum Cortisol ◽  
Intestinal Barrier Function ◽  
Nursery Pigs ◽  
Stress Markers ◽  
Pig Performance ◽  
The Impact

Abstract Social and environmental stressors impact nursery pig performance and may be linked to gastrointestinal dysfunction. The current experiment was conducted to investigate the impact of feed and water deprivation on serum stress markers and ileal mucosal gene expression in nursery pigs. Mixed-sex pigs were allotted on the basis of IBW (7.0 kg ± 0.89) in a RCBD with treatments in a split-plot arrangement and consisting of the whole-plot factor of with or without a 24-h feed and water deprivation at weaning and the sub-plot factor of with or without a cyclic 3-d heat stress starting 27 d post-weaning. On 1, 27, and 30 d post-weaning one pig from each pen was selected, blood was collected for measurement of serum cortisol, corticotrophin releasing factor (CRF), and endotoxins, and an ileal mucosal scraping was taken and gene expression of claudin 1 (CL-1), occludin (OC), and zonula occludens 1 (ZO-1) were measured by RT PCR. There was an increase (P < 0.05) in serum CRF and endotoxins and a tendency for an increase (P = 0.09) in serum cortisol due to the deprivation 1 d post-weaning. Further, there was a tendency for an increase (P < 0.10) in serum endotoxins and CRF due to the deprivation at 27 and 30 d post-weaning, respectively. Gene expression of CL-1 tended to increase (P = 0.10), and OC decreased (P = 0.05) due to the deprivation 1 d post-weaning. Expression of the OC gene decreased (P < 0.05) due to the deprivation 27 d post-weaning and OC and ZO-1 gene expression tended to decrease (P = 0.07) due to the heat stress 30 d post-weaning. These results show that post-weaning stress events alter serum stress markers and impact intestinal barrier function.

scholarly journals Visual Guidance and Egg Collection Scheme for a Smart Poultry Robot for Free-Range Farms

Sensors ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 6624
Author(s):  
Chung-Liang Chang ◽  
Bo-Xuan Xie ◽  
Chia-Hui Wang
Keyword(s):  
Recognition Rate ◽  
Climatic Conditions ◽  
Egg Laying ◽  
Egg Recognition ◽  
Labor Costs ◽  
Natural Behavior ◽  
Feature Extraction Method ◽  
Free Range ◽  
Smart Mobile ◽  
Navigation Method

Free-range chicken farming allows egg-laying hens to move freely through their environment and perform their natural behavior, including laying her eggs. However, it takes time to gather these eggs manually, giving rise to high labor costs. This study proposes a smart mobile robot for poultry farms that can recognize eggs of two different colors on free-range farms. The robot can also pick up and sort eggs without damaging them. An egg feature extraction method with automatic thresholding is employed to detect both white and brown eggs, and a behavior-based navigation method is applied to allow the robot to reach the eggs while avoiding obstacles. The robot can move towards the position of each egg via visual tracking. Once the egg is within the collection area of the robot, it is gathered, sorted and stored in the tank inside the robot. Experiments are carried out in an outdoor field of size 5 m × 5 m under different climatic conditions, and the results showed that the average egg recognition rate is between 94.7% and 97.6%. The proposed mobile poultry robot is low in production cost and simple in operation. It can provide chicken farmers with automatic egg gathering on free-range farms.

The Development of a Behavior System: Dustbathing in the Burmese Red Junglefowl I. the Influence of the Rearing Environment On the Organization of Dustbathing

Behaviour ◽  
1990 ◽  
Vol 112 (1-2) ◽  
pp. 99-116 ◽  
Author(s):  
Jaap P. Kruijt ◽  
Jerry A. Hogan ◽  
Klaus Vestergaard
Keyword(s):  
Small Groups ◽  
Diurnal Rhythm ◽  
Individual Behavior ◽  
Wire Mesh ◽  
Behavior Patterns ◽  
Frequency Of Occurrence ◽  
Red Junglefowl ◽  
Behavior System ◽  
The Individual ◽  
Functional Experience

AbstractThe purpose of this study was to determine the role played by functional experience in the development of the dustbathing behavior system in junglefowl. Small groups of birds were raised either in a rich environment with sand and earth, or in a poor environment with a wire mesh floor. Dustbathing and other behaviors were recorded at intervals between 2 and 9 months of age. The results showed that the form of the individual behavior patterns as well as the organization of extended bouts of dustbathing developed normally in chicks raised in a dustless environment. Further, the frequency of occurrence of dustbathing and the diurnal rhythm did not differ between groups raised in the two environments. Functional experience was necessary for the development of dust recognition, but some stimuli came to be recognized as "dust" more easily than others.

scholarly journals Mirrors Can Affect Growth Rate, Blood Profile, Carcass and Meat Traits and Caecal Microbial Activity of Rabbits Reared in a “Small Group” Free-Range System

Animals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 639 ◽  
Author(s):  
Musco ◽  
Lombardi ◽  
Addeo ◽  
Secci ◽  
Parisi ◽  
...  
Keyword(s):  
Growth Rate ◽  
Creatine Phosphokinase ◽  
Short Chain Fatty Acids ◽  
The Other ◽  
Blood Profile ◽  
Face To Face ◽  
Free Range ◽  
The Third ◽  
Final Weight ◽  
Locomotion Activity

The aim of this work was to propose a model of free-range raising for rabbit able to maximize the animal welfare and at the same time the productive performances through the use of mirrors. A total of 81 rabbits were allocated into free-range areas and divided into three groups (nine replicates per group): in the first group (face to face, F2F), the rabbits of each replicate could see each other. In the second group (blind) each replicate was isolated from the others; in the third group (mirrors), the replicates were divided as for the Blind group but two mirrors were placed in a corner of the perimeter. The blind group rabbits showed the lowest final weight (p < 0.05), while rabbits from the mirrors groups showed the best FCR and net dressing out values. The blind group showed the highest production of total short chain fatty acids, acetate (p < 0.05) and propionate (p < 0.01). The F2F rabbits showed higher levels of creatine phosphokinase and lactate dehydrogenase and lower values of blood glucose than those of the other groups, due to the higher locomotion activity. The use of mirrors can improve rabbit’s growth performance and carcass traits by lowering the rabbit’s locomotion activity in comparison to the other tested systems.

scholarly journals Association Between the Levels of Stress Markers and the Onset of Kangaroo Disease (Lumpy Jaw Disease) in Captive Kangaroos

2018 ◽  
Vol 1 (1) ◽  
pp. 17-20 ◽  
Author(s):  
Yukari Sotohira ◽  
Haruna Okui ◽  
Kazuyuki Suzuki ◽  
Mitsuhiko Asakawa ◽  
Tadashi Sano
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Oral Cavity ◽  
Plasma Cortisol ◽  
Serum Cortisol ◽  
Cortisol Concentration ◽  
Related Factors ◽  
Blood Samples ◽  
Plasma Cortisol Concentration ◽  
Stress Markers

Kangaroo disease (lumpy jaw disease; LJD) is a disease of the oral cavity in Macropodidae that may be caused by stress-related factors; however, detailed information about its pathogenesis is lacking. Therefore, in this study, we evaluated markers of stress in kangaroos with and without LJD to determine the factors that cause an LJD outbreak. We evaluated the oxidative stress value, antioxidant activity, and plasma cortisol concentration in blood samples. Additionally, we measured the cortisol concentration in saliva samples. The oxidative stress value and serum cortisol concentrations were statistically significantly different between the two groups, but the antioxidant activity and saliva cortisol concentrations did not differ significantly. Relatively large variations were observed for each value within individuals.

scholarly journals Impact of Stress on Health and Final Weight in Fattening Lambs

Animals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1274
Author(s):  
Teresa Navarro ◽  
José María González ◽  
Juan José Ramos ◽  
María Carmen Marca ◽  
Lucia Figliola ◽  
...  
Keyword(s):  
Clinical Signs ◽  
Serum Cortisol ◽  
Adaptation Period ◽  
Road Transportation ◽  
The Road ◽  
Stress Markers ◽  
Fecal Cortisol ◽  
Final Weight ◽  
Fattening Period ◽  
Feedlot Lambs

In order to determine whether the stress level had any influence on the health and final weight of Rasa Aragonesa fattening lambs, stress markers were measured throughout the fattening period in 80 feedlot lambs (group F) and in 40 lambs finished on the farm of birth (group C). The highest values of the stress indicators—neutrophil-to-lymphocyte-ratio (N/L), non-esterified fatty acids (NEFA), serum cortisol and fecal cortisol metabolites (FCM)—were recorded after the road transportation of group F to the feedlot. No differences between the groups were identified at the end of the adaptation period, but at the end of the fattening, statistically significant higher values for NEFA and serum cortisol were determined in group F. However, statistically significant differences between the groups were not found in the percentage of lambs with clinical signs of illness and ovine respiratory complex (ORC) lesions or in the final weight of the lambs. Independent of the location at which the lambs were fattened, those with FCM values at the beginning of the study (at the time of weaning) in the highest quartile developed a higher percentage of clinical signs of illness (45.5% vs. 32.1%, p > 0.05) and ORC lesions (45.5% vs. 10.7%, p < 0.01), and their average final weight was lower (24.36 kg vs. 27.40 kg, p = 0.001) than those with values in the lowest quartile. Stress experienced by lambs prior to finishing seems to be relevant for their further development, and FCM concentration at the time of weaning could be used as an indicator of health and productive performance of the lambs during the fattening period, regardless of finishing location.

Protective role of peroxiredoxin-4 in heart failure

2020 ◽  
Vol 134 (1) ◽  
pp. 71-72
Author(s):  
Naseer Ahmed ◽  
Masooma Naseem ◽  
Javeria Farooq
Keyword(s):  
Heart Failure ◽  
Cardiac Fibroblasts ◽  
Protective Role ◽  
Oxidative Stress Markers ◽  
Stress Markers ◽  
Total Antioxidant ◽  
Galectin 3 ◽  
Consequent Increase ◽  
And Oxidative Stress

Abstract Recently, we have read with great interest the article published by Ibarrola et al. (Clin. Sci. (Lond.) (2018) 132, 1471–1485), which used proteomics and immunodetection methods to show that Galectin-3 (Gal-3) down-regulated the antioxidant peroxiredoxin-4 (Prx-4) in cardiac fibroblasts. Authors concluded that ‘antioxidant activity of Prx-4 had been identified as a protein down-regulated by Gal-3. Moreover, Gal-3 induced a decrease in total antioxidant capacity which resulted in a consequent increase in peroxide levels and oxidative stress markers in cardiac fibroblasts.’ We would like to point out some results stated in the article that need further investigation and more detailed discussion to clarify certain factors involved in the protective role of Prx-4 in heart failure.

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