Asian-Australasian Journal of Animal Sciences

  • 제24권8호
  • /
  • Pages.1069-1085
  • /
  • 2011
  • /
  • 1011-2367(pISSN)
  • /
  • 1976-5517(eISSN)
아세아태평양축산학회 (Asian Australasian Association of Animal Production Societies)
권호 표지
DOI QR코드

DOI QR Code

Plasma Osmolality Controls Dry Forage Intake in Large-type Goats

  • 투고 : 2011.03.11
  • 심사 : 2011.04.20
  • 발행 : 2011.08.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In large-type goats that were fed on dry forage twice daily, dry forage intake was markedly suppressed after 40 min of feeding had elapsed. The objective of this study was to clarify whether or not increases in plasma osmolality and subsequent thirst sensations produced by dry forage feeding suppress dry forage intake. Eight large-type male esophageal- and ruminal-fistulated goats (crossbred Japanese Saanen/Nubian, aged 3 to 6 years, weighing $72.3{\pm}2.74$ kg) were used in two experiments conducted under sham feeding conditions. The animals were fed ad libitum a diet of roughly crushed alfalfa hay cubes for 2 h from 10:00 to 12:00 h during two experiments. Water was withheld during feeding in both experiments but was available for a period of 30 min after completion of the 2 h feeding period. In experiment 1, an intraruminal infusion of artificial parotid saliva (RIAPS) in the control replenished saliva lost via the esophageal fistula and an intraruminal infusion of hypertonic solution (RIHS) in the treatment was carried out in order to reproduce the effects of changing salt content due to feed entering the rumen. In experiment 2, the RIHS control was conducted in the same manner as the RIHS treatment of experiment 1. The treatment group consisted of RIHS-with an intravenous infusion of artificial mixed saliva (VIAMS) treatment that was carried out for 3 h to prevent increases in plasma osmolality during feeding. The results of the RIHS treatment in experiment 1 showed that ruminal fluid osmolality increased and then an increase in plasma osmolality was observed. This resulted in the production of thirst sensations and the reduction of cumulative dry forage intake to 43.3% (p<0.05) of the RIAPS control. The results of the RIHS-VIAMS treatment in experiment 2 indicated that ruminal fluid osmolality was the same as the RIHS control but plasma osmolality significantly decreased, and thirst level was markedly reduced. This caused a significant increase of 31.4% (p<0.05) in cumulative dry forage intake in the RIHS-VIAMS treatment compared to the RIHS control. These results indicate that increases in ruminal fluid osmolality during dry forage feeding indirectly suppresses dry forage intake by causing an increase in plasma osmolality and subsequently inducing thirst sensations. The results of the present study suggest that marked decreases in dry forage intake after 40 min of feeding are caused by increases in plasma osmolality and subsequent thirst sensations produced by dry forage feeding.

키워드

참고문헌

  1. Anil, M. H., J. N. Mbanya, H. W. Symonds and J. M. Forbes. 1993. Responses in the voluntary intake of hay or silage by lactating cows to intraruminal infusions of sodium acetate, sodium propionate or rumen distension. Br. J. Nutr. 69:699-712. https://doi.org/10.1079/BJN19930071
  2. AOAC. 1990. Official methods of analysis. 15th Ed. Association of Official Analytical Chemists, Arlington, Virginia.
  3. Baile, C. A., J. Mayer and C. L. McLaughlin. 1969. Feeding behavior of goats: ruminal distension, ingesta dilution and acetate concentration. Am. J. Physiol. 217:397-402.
  4. Blair-West, J. R. and A. H. Brook. 1969. Circulatory changes and renin secretion in sheep in response to feeding. J. Physiol. 204:15-30.
  5. Campling, R. C. and C. C. Balch. 1961. Factors affecting the voluntary feed intake of the cow. 1. Preliminary observations on the effect, on the voluntary intake of hay, of changes in the amount of the reticulo-ruminal contents. Br. J. Nutr. 15:523- 530. https://doi.org/10.1079/BJN19610065
  6. Fitzsimons, J. T. 1979. The physiology of thirst and sodium appetite. Cambridge University Press, Cambridge, UK.
  7. Grovum, W. L. 1995. Mechanisms explaining the effects of short chain fatty acids on feed intake in ruminants-osmotic pressure, insulin and glucagons. In: Ruminant physiology: Digestion, Metabolism, Growth and Reproduction. Proceedings of the Eight International Symposium on Ruminant Physiology (Ed. W. V. Engelhardt, S. Leonhard-Marek, G. Breves and D. Giesecke). Ferdinant Enke Verlag, Stuttgart, Germany. pp. 173-197.
  8. Guyton, A. C. and J. E. Hall. 1996. Central nervous system centers for thirst. In: Textbook of Medical Physiology. W. B. Saunders Company, Philadelphia, Pennsylvania. p. 361.
  9. Kato, S., Y. Sasaki and T. Tsuda. 1979. Food intake and rumen osmolality in the sheep. Annales de Recherches Veterinaire 10:229-230.
  10. Leek, B. F. and R. H. Harding. 1975. Sensory nervous receptors in the ruminant stomach and the reflex control of reticulo-ruminal motility. In: Digestion and Metabolism in the Ruminant Stomach (Ed. I. W. McDonald and A. C. I. Warner). University of New England Publishing Unit, Armidale, Australia. pp. 60- 76.
  11. Mathai, M., M. D. Evered and M. J. McKinley. 1997. Intracerebroventricular losartan inhibits postprandial drinking in sheep. Am. J. Physiol. 272:R1055-R1059.
  12. McKinley, M. J. and A. K. Johnson. 2004. The physiological regulation of thirst and fluid intake. News Physiol. Sci. 19:1-6. https://doi.org/10.1152/nips.01470.2003
  13. McKinley, M. J., D. A. Denton, S. Hatzikostas and R. S. Weisinger. 1979. Effect of angiotensin II on parotid saliva secretion in conscious sheep. Am. J. Physiol. 237:E56-E60.
  14. Meyer, A. H., W. Langhans and E. Scharrer. 1989. Vasopressin reduces food intake in goats. Q. J. Exp. Physiol. Cogn. Med. Sci. 74:465-473. https://doi.org/10.1113/expphysiol.1989.sp003294
  15. Nagamine, I., K. Sunagawa, J. Kuriwaki and A. Shinjo. 2003. Changes in single unit activity in the lateral hypothalamic area of goats during feeding. J. Anim. Sci. 81:529-536.
  16. Prasetiyono, B. W. H. E., K. Sunagawa, A. Shinjo and S. Shiroma. 2000. Physiological relationship between thirst level and feed intake in goats fed on alfalfa hay cubes. Asian-Aust. J. Anim. Sci. 13:1536-1541. https://doi.org/10.5713/ajas.2000.1536
  17. SAS. 1990. SAS/STAT User's Guide: Volume 2, Version 6. 4th Ed. SAS Institute Inc., SAS Campus Drive, Cary, NC 27513.
  18. Sato, Y. 1975. The relationship between saliva secretion and body fluid balance during feeding in sheep. Ph.D. Thesis, Tohoku University, Sendai, Japan.
  19. Sunagawa, K., T. Hashimoto, M. Izuno, N. Hashizume. M. Okano, I. Nagamine, T. Hirata and A. Shinjo. 2008. An intravenous replenishment of salivary components decreases water intake and increases feed intake in freely drinking large-type goats fed dry forage. Can. J. Anim. Sci. 88:237-245. https://doi.org/10.4141/CJAS07104
  20. Sunagawa, K., Y. Nakatsu, Y. Nishikubo, T. Ooshiro, K. Naitou and I. Nagamine. 2002. Effects of intraruminal saliva flow on feed intake in goats fed on alfalfa hay cubes. Asian-Aust. J. Anim. Sci. 15:1738-1746. https://doi.org/10.5713/ajas.2002.1738
  21. Sunagawa, K., Y. Nakatsu, Y. Nishikubo, T. Ooshiro, K. Naitou and I. Nagamine. 2003. Effect of parotid saliva secretion on dry forage intake in goats. Asian-Aust. J. Anim. Sci. 16:1118- 1125. https://doi.org/10.5713/ajas.2003.1118
  22. Sunagawa, K., T. Ooshiro, N. Nakamura, Y. Ishii, I. Nagamine and A. Shinjo. 2007. Physiological factors depressing feed intake and saliva secretion on goats fed on dry forage. Asian-Aust. J. Anim. Sci. 20:60-69.
  23. Sunagawa, K., T. Ooshiro, N. Nakamura, Y. Ishii, I. Nagamine, S. Shiroma and A. Shinjo. 2005. Controlling factors of feed intake and salivary secretion in goats fed on dry forage. Asian- Aust. J. Anim. Sci. 18:1414-1420. https://doi.org/10.5713/ajas.2005.1414
  24. Sunagawa, K., R. S. Weisinger, M. J. McKinley, B. S. Purcell, C. Thomson and P. L. Burns. 2001. The role of angiotensin II in the central regulation of feed intake in sheep. Can. J. Anim. Sci. 81:215-221. https://doi.org/10.4141/A00-055
  25. Thang, T. V., K. Sunagawa, I. Nagamine and S. Kato. 2010. Deprivation of esophageal boluses and dry forage intake in large-type goats. Asian-Aust. J. Anim. Sci. 23:1174-1183. https://doi.org/10.5713/ajas.2010.10027
  26. Warner, A. C. I. and B. D. Stacy. 1977. Influence of ruminal and plasma osmotic pressure on salivary secretion in sheep. Q. J. Exp. Physiol. 62:133-142. https://doi.org/10.1113/expphysiol.1977.sp002383

피인용 문헌

  1. Nighttime Cooling Is an Effective Method for Improving Milk Production in Lactating Goats Exposed to Hot and Humid Environment vol.28, pp.7, 2015, https://doi.org/10.5713/ajas.14.0890
  2. The Physiological Suppressing Factors of Dry Forage Intake and the Cause of Water Intake Following Dry Forage Feeding in Goats — A Review vol.29, pp.2, 2016, https://doi.org/10.5713/ajas.15.0681