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Reproductive traits of male rabbits as affected by climatic conditions, in the subtropical environment of Egypt

Published online by Cambridge University Press:  18 August 2016

I. F. M. Marai ,
A. M. Habeeb  and
A. E. Gad
I. F. M. Marai*
Affiliation:
Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
A. M. Habeeb
Affiliation:
Department of Radiobiological Applications, Nuclear Research Centre, Atomic Energy Authority, Inshas, Cairo, Egypt
A. E. Gad
Affiliation:
Department of Radiobiological Applications, Nuclear Research Centre, Atomic Energy Authority, Inshas, Cairo, Egypt
*
E-mail: [email protected]
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Abstract

The present work was planned to study the effects of mild and hot conditions on reproductive traits of male rabbits. The traits studied were libido (reaction time), semen quality characteristics (hydrogen-ion value, ejaculate volume, sperm motility, dead sperm, sperm abnormalities, acrosomal abnormalities, sperm-cell concentration and total sperm output), seminal biochemical traits (total protein, albumin, globulin, total lipid, cholestrol and creatinine), seminal enzymes (glutamic-pyruvate transaminase (GPT), glutamic oxalo-acetic transaminase (GOT), alkaline phosphatase and acid phosphatase), seminal hormones (tri-iodothyronine (T3) and cortisol), thermoregulatory parameters (respiration rate and temperatures of ear, rectum and skin), food and water consumption, blood metabolites (total protein, albumin, globulin, glucose, total lipid and cholesterol), kidney function (urea-N and creatinine), liver function (serum GPT, serum GOT and alkaline and acid phosphatase) and endocrine functions (T3 and cortisol hormones).

The estimated temperature-humidity index (THI) values were 20·2 during the mild and 30·1 in the hot period, indicating absence of heat stress in the first period and exposure of rabbits to very severe heat stress in the second one.

In semen characteristics, the effects of heat stress on reaction time, semen pH, sperm motility, percentages of dead sperm, sperm abnormalities and acrosomal damage, were not significant. However, ejaculate volume, sperm-cell concentration and total sperm output were significantly lower (P < 0·01) under heat stress than under mild conditions. In seminal plasma, effects of heat stress were not significant on total protein, globulin, total lipid, cholesterol, creatinine and alkaline phosphatase. Meanwhile, seminal plasma albumin, acid phosphatase, T3 and cortisol were significantly (P < 0·01 or P < 0·05) lower, while GPT and GOT were significantly (P < 0·01) higher in heat stress than in mild conditions.

Thermoregulatory parameters (respiration rate and temperatures of ear, rectum and skin) and water consumption were significantly (P < 0·01) higher, while consumption of food was significantly (P < 0·01) lower in heat stress than in mild conditions. Blood serum globulin was not affected, while serum total proteins, albumin, glucose, total lipid, cholesterol, acid phosphatase, T3 and cortisol were significantly (P < 0·01 or P < 0·05) lower and urea-N, creatinine, GPT, GOT and alkaline phosphatase were significantly (P < 0·01 or P < 0·05) higher in heat stress than in mild conditions, within the Egyptian subtropical climate.

Keywords

heat stressmetabolitesrabbitssemen productionthermoregulation
Type
Reproduction
Information
Animal Science , Volume 77 , Issue 3 , December 2003 , pp. 451 - 458
Copyright
Copyright © British Society of Animal Science 2003

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References

Aboul-Naga, A. I. 1987. The role of aldosterone in improving productivity of heat-stressed farm animals with different techniques. Ph. D. thesis, Zagazig University, Egypt.Google Scholar
Alvarez, M. B. and Johnson, H. D. 1973. Effects of environment heat exposure on cattle plasma catecholamine and glucocorticoids. Journal of Dairy Science 56: 189–194.Google Scholar
Ayyat, M. S. and Marai, I. F. M. 1996. Effects of summer heat stress on growth performance, some carcass traits and blood components of New Zealand White rabbits fed different dietary protein-energy levels, under sub-tropical Egyptian conditions. Proceedings of the sixth world rabbit congress, Toulouse, vol. 2, pp. 151–161.Google Scholar
Ayyat, M. S. and Marai, I. F. M. 1997. Effects of heat stress on growth, carcass traits and blood components of New Zealand White rabbits fed various dietary energy-fibre levels, under Egyptian conditions. Journal of Arid Environments 37: 557–568.Google Scholar
Boiti, C., Chiericato, G. M., Filotto, N. and Conali, C. 1992. Effects of high environmental temperature on plasma testosterone, cortisol, T3 and T4 levels in the growing rabbit. Journal of Applied Rabbit Research 15: 447–455.Google Scholar
Chiericato, G. M., Bailoni, L. and Rizzi, C. 1992. The effects of environmental temperature on the performance of growing rabbits. Journal of Applied Rabbit Research 15: 723–731.Google Scholar
Chiericato, G. M., Rizzi, C. and Rosteliato, V. 1996. Effect of genotype and environmental conditions on the productive and slaughtering performance of growing meat rabbits. Proceedings of the sixth world rabbit congress, Toulouse, vol. 3, pp. 147–151.Google Scholar
Collier, R. J., Breede, D. K., Thatcher, W. W., Israel, L. A. and Wilcox, C. J. 1982. Influence of environment and its modification on dairy animal health and production. Journal of Dairy Science 65: 2213–2227.CrossRefGoogle ScholarPubMed
Duncan, D. B. 1955. Multiple range and multiple F-test. Biometrics 11: 1–42.Google Scholar
El-Masry, K.A, Nasr, A. S. and Kamal, T. H. 1994. Influences of season and dietary supplementation with selenium and vitamin E or zinc on some blood constituents and semen quality of New Zealand White rabbit males. World Rabbit Science 2: 79–86.Google Scholar
Fitzsmons, J. T. 1979. The physiology of thirst and sodium appetite. Cambridge University Press, Cambridge.Google Scholar
Gonzalez, R. R., Kluger, M. J. and Hardy, J. D. 1971. Partitional calorimetery of the NZW rabbit at temperatures 5-35oC. Journal of Applied Physiology 31: 728–734.Google Scholar
Habeeb, A. A. 1987. The role of insulin in improving productivity of heat stressed farm animals with different techniques. Ph. D. thesis, Zagazig University, Egypt.Google Scholar
Habeeb, A. A., Aboul-Naga, A. I. and Yousef, H. M. 1993. Influence of exposure to high temperature on daily gain, feed efficiency and blood components of growing male Californian rabbits. Egyptian Journal of Rabbit Science 3: 73–80.Google Scholar
Habeeb, A. A. M., El-Maghawry, A.M, Marai, I. F. M. and Gad, A. E. 1998. Physiological thermoregulation mechanism in rabbits drinking saline water under hot summer conditions. Proceedings of the first international conference on animal production and health in semi-arid areas, El-Arish, North-Sinai, Egypt, pp. 443–456.Google Scholar
Habeeb, A. A. M., El-Maghawry, A.M, Marai, I. F. M. and Gad, A. E. 1999. Interaction effects between drinking saline water and ambient temperature on T3, survival rate, kidney function and some productive traits in two breeds of acclimatized rabbits. Proceedings of the first international conference on indigenous versus acclimated rabbits, El-Arish, North Sinai, Egypt, pp. 265–280.Google Scholar
Habeeb, A. A. M., Marai, I. F. M., El-Maghawry, A. M. and Gad, A. E. 1997. Growing rabbits as affected by salinity in drinking water under winter and hot summer conditions of Egypt. Egyptian Journal of Rabbit Science 7: 81–94.Google Scholar
Hackett, A. J. and Macpherson, J. W. 1965. Some staining procedures for spermatotozoa (a review). Canadian Veterinary Journal 6: 55–62.Google Scholar
Herbein, J. H., Aiello, R. J., Eckler, L. I., Pearson, R. E. and Akers, R. M. 1985. Glucagon, insulin, growth hormone and glucose concentrations in blood plasma of lactating dairy cows. Journal of Dairy Science 68: 320–325.CrossRefGoogle ScholarPubMed
Ibrahim, Z. A. 1994. Some reproductive traits of newly imported Bouscat, New Zealand White and Californian breeds as affected by Egyptian environmental conditions. Egyptian Journal of Rabbit Science 4: 183–190.Google Scholar
Kamal, T. H., Habeeb, A. A., Abd El-Samee, A. M. and Marai, I. F. M. 1989. Milk production of heat stressed Friesian cows and its improvement in the subtropics. Proceedings of the international symposium on the constrains and possibilities of ruminant production in dry subtropics, Cairo, Egypt, pp. 156–158.Google Scholar
Karras, W. 1952. Waerme wasserbal und Registratur, ihre Entwickiung und an wendung. Deutsche Tierärztlice Wochenschrift 59: (suppl. 2) 60-62 and 68–69.Google Scholar
Kechil, A. A., Richards, S. A. and Sykes, A. H. 1981. An acute drinking response in hens induced by thermal stimuli. Physiology and Behavior 27: 73–76.Google Scholar
Lebas, F., Coudert, P., Rouvier, R. and Rochambeau, H. de. 1986. Rabbit husbandry, health and production. Animal Production and Health Series, FAO, Rome.Google Scholar
Lee, J. A., Roussell, J. D. and Beaty, J. F. 1976. Effect of temperature-season on bovine adrenal cortical function, blood cell profile and milk production. Journal of Dairy Science 59: 104–114.Google Scholar
Marai, I. F. M., Abd El-Kariem, M.A, Zeidan, A. E. B. and Selem, T. S. T. 1998. Reproductive performance of heat-stressed low fertile male rabbits as affected by types of Gn-RH injection. Proceedings of the first international conference on animal production and health in semi-arid areas, North Sinai, Egypt, pp. 423–431.Google Scholar
Marai, I. F. M., Ayyat, M. S. and Abd El-Monem, U. M. 2001. Growth performance and reproductive traits at first parity of New Zealand White female rabbits as affected by heat stress and its alleviation, under Egyptian conditions. Tr opical Animal Health and Production 33: 1–12.Google ScholarPubMed
Marai, I. F. M., Ayyat, M. S., Gabr, H. A. and Abd El-Monem, U. M. 1996. Effect of summer heat stress and its amelioration on production performance of New Zealand White adult female and male rabbits, under Egyptian conditions. Proceedings of the sixth world rabbit congress, Toulouse, vol. 2, pp. 197–208.Google Scholar
Marai, I. F. M., Ayyat, M. S., Gabr, H. A. and Abd El-Monem, U. M. 1999. Growth performance, some blood metabolites and carcass traits of New Zealand White broiler male rabbits as affected by heat stress and its alleviation under Egyptian conditions. Cahiers Options Méditerranéennes 41: 35–42.Google Scholar
Marai, I. F. M., El-Masry, K. A. and Nasr, A. S. 1994a. Heat stress and its amelioration with nutritional, buffering, hormonal and physical techniques for New Zealand White rabbits maintained under hot summer conditions of Egypt. Options Méditerranéennes 8: (suppl. ) 475–487.Google Scholar
Marai, I. F. M. and Habeeb, A. A. 1994. Thermoregulation in rabbits. Options Méditerranéennes 8: 33–41.Google Scholar
Marai, I. F. M., Habeeb, A. A. M., Daader, A. H. and Yousef, H. M. 1995. Effect of Egyptian sub-tropical conditions and the heat stress alleviation techniques of water spray and diaphoretics on the growth and physiological functions of Friesian calves. Journal of Arid Environments 30: 219–225.Google Scholar
Marai, I. F. M., Habeeb, A. A. M., El-Sayiad, Gh. A. and Nessem, M. Z. 1994b. Growth performance and physiological response of New Zealand White and Californian rabbits under hot summer conditions of Egypt. Options Méditerranéennes 8: (suppl. ) 619–625.Google Scholar
Marai, I. F. M., Habeeb, A. A. M. and Gad, A. E. 2002. Rabbits’ productive, reproductive and physiological performance traits as affected by heat stress: a review. Livestock Production Science 78: 71–90.CrossRefGoogle Scholar
Salem, I. A., Kobeisy, M. A., Zenhom, M. and Hayder, M. 1998. Effect of season and ascorbic acid supplementation on some blood constituents of suckling Chios lambs and its crosses with Ossimi sheep in upper Egypt. Assiut Journal of Agriculture Sciences 29: 87–100.Google Scholar
Snedecor, G. W. and Cochran, W. G. 1982. Statistical methods, sixth edition. Iowa State University Press, Ames, IA.Google Scholar
Tharwat, E. E., Amin, S. O., Khadr, A. F. and Kotby, E. A. 1994. The physiological responses of New Zealand White rabbits to heat stress. Options Méditerranéennes 8: 634–637.Google Scholar