Physiological Response and Stress Indicators of California Rabbits under Intensive Conditions in Egypt

Kalaba, Z. M.

doi:10.3923/ajpsaj.2012.65.78

Cited by 13 publications

(11 citation statements)

References 3 publications

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“…In this context, Kalaba (2012) reported that increasing cage density of growing rabbits induced stress effects which increased level of blood cortisol. Also, Tanchev et al (2014) recorded that road transportation leads to an increase in the levels of ACTH and cortisol in blood of California rabbits compared with before transportation.…”

Section: Discussionmentioning

confidence: 99%

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Behavioral Activities, Physiological Body Reactions, Hematological Parameters and Hormonal Profiles for Bucks of New Zealand White and Baladi Red Rabbits Exposed to Short Term of High Temperature

Khalil¹,

Yaseen²,

Hamdy³

2015

Asian J. of Poultry Science

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This study was conducted to investigate the effect of acute short term heat exposure on behavioral activities, physiological body reactions, hematological parameters and hormonal profiles of New Zealand White (NZW) and Baladi Red (BR) bucks. Twenty male NZW and BR bucks were divided into two groups; natural winter climate of 19±1°C and 55±5%, Relative Humidity (RH) (control group) and the bucks in the other group were exposed to short term heat stress for 1 h at 37±0.5°C and 20±2% RH. The results indicated that, heat stress decreased (p#0.001) standing and walking behavior and increased (p#0.001) sitting behavior compared with these recorded under control temperature. Moreover, Respiration Rate (RR), Rectal Temperatures (RT) and Time of Sexual Libido (TSL) were significantly increased (p#0.001) following stress. Concentration of plasma testosterone and T 3 were significantly reduced (p#0.001) and cortisol were significantly increased after submission to stress. The RBCs, WBCs, Hb, PCV values were insignificantly reduced and lymphocyte was significantly reduced after stress. In contrast, neutrophils, Neutrophils/Lymphocytes (N/L) ratio were increased (p#0.05) and monocytes were insignificantly increased after the end of heat stress. On the other hand, breeds of rabbit had significant effects on most of the studied traits, especially after heat exposure. The BR bucks were significantly superior; RBCs, WBCs, neutrophils, N/L ratio and monocytes than those recorded in NZW bucks after heat stress. Also, plasma concentration of testosterone were significantly higher but cortisol and T 3 were significantly lower (p#0.05) in BR bucks than those estimated in NZW bucks. Moreover, BR bucks had insignificantly higher walking and lower standing behavior than those recorded in NZW bucks. Also, RR was significantly higher (p#0.001), but RT and TSL were significantly lower (p#0.001) in BR bucks than those recorded in the NZW bucks. Furthermore, the results showed that there were prevalent significant (p#0.05) negative correlation between plasma level of cortisol and each of plasma level of testosterone, RBCs, WBCs counts, standing and walking behavior and significant (p#0.001) positive with RR, RT, TSL and time of sitting behavior. Current results explained that acute short term heat stress, negatively affected of internal environment of rabbit bucks which were reflected in their performance. Also, behavioral traits, sexual libido, hematological parameters and hormonal profile in BR bucks seem to be better than those recorded by NZW bucks after exposed heat stress, which may be explained, why BR breed had more tolerate to heat stress compared to exotic breeds.

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Section: Discussionmentioning

confidence: 99%

“…This confirms that NZW bucks are less adapted to high heat exposure than BR bucks. Kalaba (2012) who reported that increased level blood cortisol due to negative effect in physiological parameters in rabbits.…”

Section: Discussionmentioning

confidence: 99%

Behavioral Activities, Physiological Body Reactions, Hematological Parameters and Hormonal Profiles for Bucks of New Zealand White and Baladi Red Rabbits Exposed to Short Term of High Temperature

Khalil¹,

Yaseen²,

Hamdy³

2015

Asian J. of Poultry Science

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“…Total protein could be designated as a long-term stress indicator in rabbits, as a study of the effect of noise on rabbits showed significantly lower total protein values after 50 days of daily exposure (Elwasife et al 2015) and another one reported that a higher concentration of rabbits in a cage also resulted in a reduction in protein values (Kalaba 2012). Table 5.…”

Section: Discussionmentioning

confidence: 99%

“…The level of glycaemia is considered a stress indicator in a number of other cases because many factors lead to the change of the glucose concentration in rabbits (Washington and Van Hoosier 2012), e.g. chronic noise exposure can cause a reduction (Elwasife et al 2015) but heat stress (Składanowska-Baryza et al 2018), higher concentration of rabbits in the cage (Kalaba 2012) or transport to slaughter (Składanowska-Baryza et al 2018) can cause its elevation. Transport and manipulation in the laboratory can increase the glucose concentration (and other variables) in laboratory rats (Castelhano-Carlos and Baumans 2009).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of stress in laboratory rabbits used for teaching purposes

et al. 2019

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This study was intended as a contribution to the argument about possible suffering of animals used for demonstrative purposes during teaching at universities. Pharmacology lectures at the University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic were selected for this experiment. The study focused on stress assessment using haematological and biochemical indices. Blood samples were drawn from 20 rabbits (Oryctolagus cuniculus f. domesticus L.) 10 days after arrival at the institute (before the first practical lesson), and then in the 7th and 12th weeks of the semester with practical lessons. The haematological and biochemical indices were compared between the experimental group (n = 10) used for practical demonstrations and the control group (n = 10) which was kept in its hutch. Practical lessons included manipulation with rabbits, health examination, topical or total application and observation of the drugs’ effects. All the acts were carried out by students. Significant changes were detected in some of haematological (erythrocytes, haemoglobin, haematocrit) and biochemical (glucose, total protein, enzymes aspartate aminotransferase and lactate dehydrogenase) variables compared to the control group. The values obtained from the last blood sampling indicate a possible habituation process in the experimental group between the 8th and 12th week. The results were compared between the experimental and control group and also with the results of other studies with different stressors. In conclusion, the stress the rabbits used for teaching purposes at universities are exposed to, is tolerable.

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“…However, extreme density might affect the productivity of animals (Bhattacharjya et al, 2017). In this respect, many attempts were conducted to investigate the effects of SD rates on rabbits or to determine the optimum SD rate for different rabbits' strains (Villalobos et al, 2008;Kalaba, 2012and Bhattacharjya et al, 2015.…”

Section: Introductionmentioning

confidence: 99%

Effect of Stocking Density with Supplementation Probiotic on Productive and Economical Performance in Local Growing Rabbits

Beshara

Ragab

Desoky

et al. 2019

Journal of Animal and Poultry Production

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An indoor experiment with factorial design (3 × 2) was conducted to investigate the effect of different levels of dietary Saltose Ex ® probiotic on productive performance and economic efficiency parameters of growing black Balady rabbits reared under different stocking density (SD) rates for 7 weeks. A total of 72 rabbits (7 weeks old) were divided into six treatments. The experimental treatments were being as follow; T 1 : rabbits fed basal diet (BD) + 0.0 g probiotic / Kg diet and reared under SD of 3 rabbits / cage, T 2 : rabbits fed BD + 0.4 g probiotic / Kg diet and reared under SD of 3 rabbits / cage, T 3 : rabbits fed BD + 0.0 g probiotic / Kg diet and reared under SD of 4 rabbits / cage, T 4 : rabbits fed BD + 0.4 g probiotic / Kg diet and reared under SD of 4 rabbits / cage, T 5 : rabbits fed BD + 0.0 g probiotic / Kg diet and reared under SD of 5 rabbits / cage and T 6 : rabbits fed BD + 0.4 g probiotic / Kg diet and reared under SD of 5 rabbits / cage during the period from 7 to 14 weeks of age. The obtained results revealed that addition of 0.4 g Saltose Ex ® /Kg diet not only alleviated the drastic effects of high SD on rabbits, but also significantly improved of growth performance, nutrients utilization, carcass quality traits, microbial activity, hematological parameters, besides it led to slightly increased of economic efficiency parameters of growing rabbits especially those reared under high SD (5 rabbits / cage). Thus, it could be concluded the addition of 0.4 g Saltose Ex ® / Kg diet had useful and practical effects on performance of growing black Balady rabbits reared under high stocking density, specifically reared in cages.

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Physiological Response and Stress Indicators of California Rabbits under Intensive Conditions in Egypt

Cited by 13 publications

References 3 publications

Behavioral Activities, Physiological Body Reactions, Hematological Parameters and Hormonal Profiles for Bucks of New Zealand White and Baladi Red Rabbits Exposed to Short Term of High Temperature

Behavioral Activities, Physiological Body Reactions, Hematological Parameters and Hormonal Profiles for Bucks of New Zealand White and Baladi Red Rabbits Exposed to Short Term of High Temperature

Evaluation of stress in laboratory rabbits used for teaching purposes

Effect of Stocking Density with Supplementation Probiotic on Productive and Economical Performance in Local Growing Rabbits

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