1970	B.Sc., Biology, Tel-Aviv University
1972	MSc., Zoology, Tel-Aviv University
1978	Ph.D., Physiology, Tel-Aviv University
1979	Post-Doc., Hannah Research Institute Scotland
1980	Post-Doc., School of Veterinary Medicine Hanover , Germany
1981 -	Faculty Member, Zoology Department, Tel Aviv University

 

Comparative physiology with special emphasis on the bioenergetics and water economy, kidney function, digestive physiology and Intestinal transport in desert ruminants.

  Current research projects:

•  Comparative aspects in estimating daily energy expenditure by heart rate monitoring in animals.

•  Effect of acid base variables on intestinal water and solute transport, and the particular role of carbonic anhydrase in a burrowing herbivores - the mole rat (Spalax ehrenbergi) .

Choshniak, I. and A. Shkolnik. 1977. The rumen as a protective osmotic mechanism during rapid rehydration in the black Bedouin goat. Alfred Benzon Symp. XI, 344-3).

Choshniak, I. and A. Shkolnik. 1977. Rapid rehydration in the black Bedouin goat: Red blood cell fragility and role of the rumen. Comp. Biochem. Physiol. 56A, 581-583.

Choshniak, I. , B.G. Munck, and E. Skadhauge. 1977. NaCl transport across the chicken coprodeum. Basic characteristics and dependence on NaCl intake. J. Physiol. Lond. 271, 489-504.

Dmi'el, R., D. Robertshaw, and I. Choshniak. 1979. The control of sweating in the Bedouin goat. Physiol. Zool. 52, 558-564.

Choshniak, I. , D. McEwan Jenkinson, Blatchford D.R. and M. Peaker. 1982. Blood flow and catecholamine concentration in bovine and caprine skin during thermal sweating. Comp. Biochem. Physiol. 71C, 37-42.

Maltz,E., Olsson,K., Glick,S.M., Fyhrquist,F., Silanikove,N., Choshniak, I. , and Shkolnik,A., 1984. Homeostatic Responses to Water-Deprivation Or Hemorrhage in Lactating and Non-Lactating Bedouin Goats. Comparative Biochemistry and Physiology A-Physiology 77, 79-84.

Choshniak, I. , Arnon,H., and Shkolnik,A., 1984. Digestive Efficiency in A Wild Goat - the Nubian Ibex. Canadian Journal of Animal Science 64, 160-162.

Choshniak, I. , Wittenberg ,C., Rosenfeld,J., and Shkolnik,A., 1984. Rapid Rehydration and Kidney-Function in the Black Bedouin Goat. Physiological Zoology 57, 573-579.

Choshniak, I. and Arnon,H., 1985. Nitrogen-Metabolism and Kidney-Function in the Nubian Ibex (Capra Ibex nubiana). Comparative Biochemistry and Physiology A-Physiology 82, 137-139.

Wittenberg ,C., Choshniak, I. , Shkolnik,A., Thurau,K., and Rosenfeld,J., 1986. Effect of Dehydration and Rapid Rehydration on Renal-Function and on Plasma-Renin and Aldosterone Levels in the Black Bedouin Goat. Pflugers Archiv-European Journal of Physiology 406, 405-408.

Brosh,A., Choshniak, I. , Tadmor,A., and Shkolnik,A., 1986. Infrequent Drinking, Digestive Efficiency and Particle-Size of Digesta in Black Bedouin Goats. Journal of Agricultural Science 106, 575-579.

Brosh,A., Shkolnik,A., and Choshniak, I. , 1986. Metabolic Effects of Infrequent Drinking and Low-Quality Feed on Bedouin Goats. Ecology 67, 1086-1090.

Israely,H. and Choshniak, I. , 1985. Energy-Metabolism and Digestibility in Donkeys Fed Low Quality Food. Israel Journal of Zoology 33, 116.

Choshniak, I. and Yahav,S., 1987. Can Desert Rodents Better Utilize Low Quality Roughage Than Their Non-Desert Kindred. Journal of Arid Environments 12, 241-246.

Choshniak, I. , Wittenberg ,C., and Saham,D., 1987. Rehydrating Bedouin Goats with Saline - Rumen and Kidney-Function. Physiological Zoology 60, 373-378.

Brosh,A., Shkolnik,A., and Choshniak, I. , 1987. Effects of Infrequent Drinking on the Nitrogen-Metabolism of Bedouin Goats Maintained on Different Diets. Journal of Agricultural Science 109, 165-169.

Israely,H., Brosh,A., and Choshniak, I. , 1987. Physiological-Characteristics That Help Goats and Donkeys to Cope with the Nitrogen Shortage in Desert Forage. Israel Journal of Zoology 34, 97.

Raed,M., Choshniak, I. , and Shkolnik,A., 1987. Effect of Excessive Environmental Heat Load on the Bioenergetics of the Black Mamber Goat. Israel Journal of Zoology 34, 96-97.

Brosh,A., Choshniak, I. , Tadmor,A., and Shkolnik,A., 1988. Physicochemical Conditions in the Rumen of Bedouin Goats - Effect of Drinking, Food Quality and Feeding Time. Journal of Agricultural Science 111, 147-153.

Izraely,H., Choshniak, I. , Stevens,C.E., Demment,M.W., and Shkolnik,A., 1989. Factors Determining the Digestive Efficiency of the Domesticated Donkey (Equus asinus asinus). Quarterly Journal of Experimental Physiology and Cognate Medical Sciences 74, 1-6.

Yahav,S. and Choshniak, I. , 1989. Energy-Metabolism and Nitrogen-Balance in the Fat Jird (Meriones crassus) and the Levant Vole (Microtus guentheri). Journal of Arid Environments 16, 315-322.

Izraely,H., Choshniak, I. , Stevens,C.E., and Shkolnik,A., 1989. Energy Digestion and Nitrogen Economy of the Domesticated Donkey (Equus asinus asinus) in Relation to Food Quality. Journal of Arid Environments 17, 97-101.

Yahav,S. and Choshniak, I. , 1990. Response of the Digestive-Tract to Low Quality Dry Food in the Fat Jird (Meriones crassus) and the Levant Vole (Microtus guentheri). Journal of Arid Environments 19, 209-215.

Kasirer,H., Izraely,H.K., Choshniak, I. , and Shkolnik,A., 1992. Rehydration in the Donkey - Role of the Hindgut. Faseb Journal 6, A950.

Foley,W.J., Bouskila,A., Shkolnik,A., and Choshniak, I. , 1992. Microbial Digestion in the Herbivorous Lizard Uromastyx aegyptius (Agamidae). Journal of Zoology 226, 387-398.

Rubal,A., Choshniak, I. , and Haim,A., 1992. Daily Rhythms of Metabolic-Rate and Body-Temperature of 2 Murids from Extremely Different Habitats. Chronobiology International 9, 341-349.

Moravi,V., David,D., Akselrod,S., Bitton,Y., and Choshniak, I. , 1993. Myocardial Regional Blood-Flow - Quantitative Measurement by Computer-Analysis of Contrast-Enhanced Echocardiographic Images. Ultrasound in Medicine and Biology 19, 619-633.

Shaham,D., Choshniak, I. , Rosenfeld,J., Witenberg,C., Thurau,K., and Shkolnik,A., 1994. Neural Control of Renal-Function in Newly Rehydrated Bedouin Goats. Comparative Biochemistry and Physiology A-Physiology 107, 57-61.

Shaham,D., Choshniak, I. , Rosenfeld,J., Witenberg,C., Thurau,K., and Shkolnik,A., 1994. Modulation of Plasma Arginine-Vasopressin During Rehydration in the Bedouin Goat. Journal of Comparative Physiology B-Biochemical Systemic and Environmental Physiology 164, 112-117.

Choshniak, I. , Benkohav,N., Taylor ,C.R., Robertshaw,D., Barnes,R.J., Dobson,A., Belkin,V., and Shkolnik,A., 1995. Metabolic Adaptations for Desert Survival in the Bedouin Goat. American Journal of Physiology-Regulatory Integrative and Comparative Physiology 37, R1101-R1110.

Mualem,R. and Choshniak, I. , 1995. Modulation of Water and Solute Transport Following Food Restriction in the Colons of the Levant Vole (Microtus guenteri) and the Mouse (Mus musculus). Physiological Zoology 68, 524-538.

Tandler,A., Anav,F.A., and Choshniak, I. , 1995. The effect of salinity on growth rate, survival and swimbladder inflation in gilthead seabream, Sparus aurata, larvae. Aquaculture 135, 343-353.

Rubal,A., Haim,A., and Choshniak, I. , 1995. Resting metabolic rates and daily energy intake in desert and non-desert murid rodents. Comparative Biochemistry and Physiology A-Physiology 112, 511-515.

Choshniak, I. and Mualem,R., 1997. SCFA and electrolyte absorption in the colon of three rodent species. Comparative Biochemistry and Physiology A-Physiology 118, 381-384.

Unna ,R.B., Shalitin,O., Martens,H., and Choshniak, I. , 1997. Water transport in the forestomach epithelium of the black Beduin Goat. Zeitschrift fur Saugetierkunde-International Journal of Mammalian Biology 62, 236-237.

Bahat,O., Choshniak, I. , and Houston , D.C. , 1998. Nocturnal variation in body temperature of Griffon Vultures. Condor 100, 168-171.

Jessen,C., Dmi'el,R., Choshniak, I. , Ezra,D., and Kuhnen,G., 1998. Effects of dehydration and rehydration on body temperatures in the black Bedouin goat. Pflugers Archiv-European Journal of Physiology 436, 659-666.

Kasirer-Izraeli,H., Shkolnik,A., and Choshniak, I. , 2001. Kidney response to rapid rehydration in the donkey. Israel Journal of Zoology 47, 29-39.

Sinai,P., Krasnov,B.R., Shenbrot,G.I., and Choshniak, I. , 2003. Ecology and behavior of the lesser Egyptian gerbil (Gerbillus gerbillus) (Rodentia : Gerbillidae) from the Negev Highlands and Arava valley, Israel. Mammalia 67, 1-14.

Brosh1 A , Y. Aharoni , E. Shargal , B. Sharir , and M. Gutman , I. Choshniak   2004. Measurements of energy balance of grazing beef cows in Mediterranean pasture, the effects of stocking rate and season: 2. Energy expenditure estimation from heart rate and oxygen consumption, and the energy balance. Livest. Prod. Sci. 90 pp. 101–115

REFEREED ARTICLES

•  Shkolnik, A., A. Borut, and I. Choshniak. Water economy of the Bedouin goat. Symp. Zool. Soc. Lond. 31, 1972 (229-242).

•  Choshniak, I. , and A. Shkolnik. The rumen as a protective osmotic mechanism during rapid rehydration in the black Bedouin goat. Alfred Benzon Symp. XI, 1977 (344-35).

•  Choshniak, I. , and A. Shkolnik. Rapid rehydration in the black Bedouin goat: Red blood cell fragility and role of the rumen. Comp. Biochem. Physiol. 56A, 1977 (581-583)

•  Choshniak, I. , B.G. Munck, and E. Skadhauge. NaCl transport across the chicken coprodeum. Basic characteristics and dependence on NaCl intake. J. Physiol. Lond. 271, 1977 (489-504).

•  Dmi'el, R., D. Robertshaw, and I. Choshniak. The control of sweating in the Bedouin goat. Physiol. Zool. 52, 1979 (558-564).

•  Choshniak, I. , D. McEwan Jenkinson, Blatchford D.R. and M. Peaker. Blood flow and catecholamine concentration in bovine and caprine skin during thermal sweating. Comp. Biochem. Physiol. 71C , 1982 (37-42).

•  Maltz, E., K., Olsson, S.M. Glick, F. Fydrquist, N. Silanikove, I. Choshniak , and A. Shkolnik. Homeostatic responses to water deprivation or hemorrahge in lactating and non-lactating Bedouin goats. Comp. Biochem. Physiol. 77A, 1984 (79-84).

•  Choshniak, I. , C. Wittenberg, J. Rosenfeld, and A. Shkolnik. Rapid rehydration and kidney function in the black Bedouin goat. Physiol. Zool. 57 (5), 1984 (573-579).

•  Choshniak, I. , H. Arnon, and A. Shkolnik. Digestive efficiency in a wild goat: the Nubian ibex. Can. J. Anim. Sci. 64, 1984 (160-162).

•  Choshniak, I. , and H. Arnon. Nitrogen metabolism and kidney function in the Nubian ibex. Comp. Biochem. Physiol. 82A (1), 1985 (137-139).

•  Brosh, A., A. Shkolnik, and I. Choshniak. Effect of infrequent drinking and low quality feed on water and energy metabolism of Bedouin goats. Ecology 67(4), 1985 (1086-1090).

•  Wittenberg , C., I. Choshniak, J. Rosenfeld, K. Thurau, and A. Shkolnik. Effect of dehydration and rapid rehydration on renal function and plasma renin and aldosteron levels in the black Bedouin goat. Pflugers Archiv. 406, 1985 (405-408).

•  Brosh, A., I. Choshniak, and A. Shkolnik. Infrequent drinking, digestive efficiency and particle size of digesta in the black Bedouin goat. J. Agric. Sci. Camb. 106, 1986 (575-579).

•  Choshniak, I. , and S. Yahav. Can desert rodents better utilize low quality roughages than their non desert kindred? J. of Arid Environ. 12, 1987 (241-246).

•  Choshniak, I. , C. Wittenberg, and D. Shaham. Rehydrating Bedouin goats with saline: Rumen and kidney function. Physiol. Zool. 60(3), 1987 (373-378).

•  Brosh, A., A. Shkolnik, and I. Choshniak. Effect of infrequent drinking on the nitrogen metabolism of Bedouin goats maintained on different diets. J. Agric. Sci. Camb. 109, 1987 (165-169).

•  Brosh, A., I. Choshniak, A. Tadmor, and A. Shkolnik. Physico-chemical conditions in the rumen of the Bedouin goat; Effect of drinking, food quality and feeding time. J. Agric. Sci. Camb. 111, 1988 (147-153).

•  Yahav, S., and I. Choshniak. Energy Metabolism and Nitrogen Balance in the Fat Jird ( Meriones Crassus ) and the Levant Vole ( Microtus guentheri ). J. of Arid Environments 16, 1989 (315-322).

•  Izraeli, H., I. Choshniak, C.E. Stevens, and A. Shkolnik. Energy digestion and nitrogen economy of the domesticated donkey ( Equus asinus ) in relation to food quality. J. of Arid Environments 17, 1989 (97-101).

•  Izraeli, H., I. Choshniak, C.E. Stevens, and A. Shkolnik. Factors determining the digestive efficiency of the domesticated donkey ( Equus asinus ). J. Exp. Physiol. 74, 1989 (1-6).

•  Izraeli, H., I. Choshniak, C.E. Stevens, and A. Shkolnik. The Donkey: Coping with low quality feed. Asian J. of Animal Science 2, 1989 (289-291).

•  Mualem, R., I. Choshniak, and A. Shkolnik. Environmental heat load, bioenergetics and water economy in two breed of goats: The Mamber goat versus the desert Bedouin goat. J. of World Review of Animal Production 25, 1989 (91-95).

•  Yahav, S., and I. Choshniak. Response of the digestive tract to low quality dry food in the fat jird ( Meriones Crassus ) and the Levant Vole ( Microtus guentheri ) J. of Arid Enviroments 19, 1990 (209-215).

•  Rubal, A., I. Choshniak, and A. Haim. Daily rhythms of metabolic rate and body temperature of two murids from extremely different habitats. Chronobiology International 9, 1992 (341-349) .

•  Foley, W. J., A. Bouskila, A. Shkolnik, and I. Choshniak. Microbial digestion in herbivorous lizard Uromastyx aegyptius (Agamidae). J. Zool. Lond. 226, 1992 (387-398).

•  Mor-Avi, V., S. Akselrod, I. Bitton, I. Choshniak, and D. David. Myocardial Regional blood flow: Quantitative measurement by computer analysis of contrast enhanced echocardiographic images. Ultrasound in Medicine and Biology. 1993 (619-633).

•  Shaham, D., I. Choshniak, J. Rosenfeld C. Wittenberg , K. Thurau, and A. Shkolnik. Neural control of renal function in newly rehydrated Bedouin goats. Comp. Biochem. and Physiol. 107A, 1994 (57-61).

•  Izraeli, H., I. Choshniak, and A. Shkolnik. Dehydration and rehydration in donkeys: The role of the hind gut as a water reservoir. J. of Basic and Clinical Physiology & and Pharmacology. 5, 1994 (89-100).

•  Shaham, D., I. Choshniak, J. Rosenfeld, C. Wittenberg, K. Thurau, and A. Shkolnik. Modulation of plasma arginine vasopressin during rehydration in the Bedouin goat. J. Comp. Physiol. B. 164, 1994 (112-117).

•  Choshniak, I., N. Ben-Kohav, C. R. Taylor, D. Robertshaw, R. J. Barnes, A. Dobson, V. Belkin, and A. Shkolnik. Metabolic adaptations for desert survival in the Bedouin goat. Am. J. of Physiology 268 (Regulatory Integrative Comp. Physiol. 37), 1995 (R1101-R1110).

•  Mualem, R. and I. Choshniak. Modulation of water and solute transport following food restriction in the colon of the Levant Vole ( Microtus guenteri ) and the mouse ( Mus musculus ). Physiological Zoology 68, 1995 (524-538).

•  Anav F., A Tandler, and I. Choshniak. The effect of salinity on growth, respiration and Na/K ATPase in gilthead seabream ( sparus aurata ). Aquaculture 135, 1995 (343-353).

•  Rubal A., A. Haim, and I. Choshniak. Resting metabolic rates and daily energy intake in desert and non desert murid rodents. Comp. Biochem. Physiol. 112A, 1995 (511-515).

•  Choshniak, I. , and R. Mualem. SCFA and electrolyte absorption in the colon of three rodent species. Comparative Biochemistry and Physiology. 118A, 1997.(381-384)

•  Bahat, O., I. Choshniak, D. Houston. Nocturnal variation in body temperature of Griffon vultures. The Condor 100, 1998 (168-171).

•  Jessen C. R. Dmiel I. Choshniak, D Ezra, G. Kuhnen. Effects of dehydration and rehydration on the body temperatures in the black Bedouin goat. Pflugers Arch-Eur. J. Physiol. 436: 1998 (659-666).

•  Brosh, A., Aharoni, Y., Shargal, E., Choshniak, I. , Sharir, B., Holzer, Z., and Gutman. M. 2001. The use of heart rate to measure energy expenditure and energy balance of cattle. In: (A. Chwalibog and K. Jakobsen eds) Energy Metabolism in Animals. Proceedings of the 15th Symposium on Energy Metabolism in Animals. Wageningen Press p. 19-22.

•  Kasirer-Izraeli, H., I. Choshniak, and A. Shkolnik. Kidney response to rapid rehydration in the donkey . Israel Journal of Zoology., 2001, 47: 29 -39

•  Sinai,P., Krasnov,B.R., Shenbrot,G.I., and Choshniak, I. , 2003. Ecology and behavior of the lesser Egyptian gerbil ( Gerbillus gerbillus ) (Rodentia : Gerbillidae) from the Negev Highlands and Arava valley, Israel. Mammalia 67, 1-14.

•  Brosh, A., Aharoni, Y., Shargal, E., Choshniak, I. , Sharir, B., and Gutman, M. 2004. Measurements of energy balance of grazing beef cows in Mediterranean pasture, the effects of stocking rate and season: 2. Energy expenditure estimation from heart rate and oxygen consumption, and the energy balance. Livest. Prod. Sci. 90: 101-115.

•  A. Brosh , Y. Aharoni , E. Shargal , B. Sharir , and M. Gutman , I. Choshniak
Energy balance of grazing beef cattle in Mediterranean pasture, the effects of stocking rate and season: 2. Energy expenditure as estimated from heart rate and oxygen consumption, and energy balance. The Sixth International Symp. on the Nutrition of Herbivores (ISNH6), 19 - 24 October 2003. Merida , Yucatan , Mexico . Eds: J. Herrera-Camacho and Sandoval-Castro.Pp. 391-396.

•  Gutman, R., I. Choshniak and N. Kronfeld-Schor. 2006. Defending body mass during food restriction in Acomys russatus – a desert rodent that does not store food. American Journal of Physiology – Regulatory, Integrative and Comparative Physiology, 290 (4): R881-R891..

•  Gutman, R., I. Choshniak and N. Kronfeld-Schor. 2007. Two strategies for coping with food shortage in desert golden spiny mice. Physiology and Behavior 90: 95-102

BOOKS

•  Physiology and History of the Black Bedouin Goat. by Amiral Shkolnik and Itzhak Choshniak . A.R.G. Gantner Verlag Kommandit Gesellschaft, Ruggell (2006).

CHAPTERS IN BOOKS

•  Shkolnik, A., E. Maltz, and I. Choshniak. The role of the ruminant's digestive tract as a water reservoir. In: Digestive Physiology and Metabolism in Ruminants. Ed. Y. Rockebusch and P. Thiven. MTP Press, 1980 (pp731-741).

•  Shkolnik, A., and I. Choshniak. Physiological Responses and Productivity of Goats. In: Stress Physiology in Livestock, Vol. II. M.K. Yousef (ed). CRC Press, 1984 (pp39-57).

•  Shkolnik, A., and I. Choshniak Water Depletion and Repid Rehydration in the Hot and Dry Terrestrial Environment. Comparative Physiology: Life in Water and Land. P. Dejours, L. Bolis, C.R. Taylor, E. R. Weibel, (eds.) Padova, Fidia Reserch Series, IX-Liviana Press, 1987 (pp141-151).

•  Choshniak, I. , A. Brosh, and A. Shkolnik. Productivity of Bedouins: Coping with shortages of water and adequate food. Isotope aided studies on livestock productivity in Mediterranean and North Africa countries. Vienna , International Atomic Energy Agency, 1988 (p91-98)

•  Choshniak, I. , D. Shaham, and A. Shkolnik Renal Responses to Rapid Rehydration. In: Milestones in Environmental Physiology. M.K. Yousef. The Hague SPB Academic Publishing, 1989 (p155-161).

•  Shkolnik, A., and I. Choshniak Seasonal aspects in the physiological ecology of livestock in the desert.. Wild and domestic ruminants in extensive land use systems. R. R. Hofman and H. J. (eds.) Okologische Hefte, heft 2 -Humboldt University press, 1995 (pp9-19).