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Effects of Feeding Method of Compound Feed on the Development of the Digestive Organs and Other Internal Organs of Hanwoo Steers
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 Title & Authors
Effects of Feeding Method of Compound Feed on the Development of the Digestive Organs and Other Internal Organs of Hanwoo Steers
Yun, S.G.; Cho, W.M.; Lee, S.C.; Kim, C.-H.;
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A study was conducted to investigate the development of the digestive organs (rumen, reticulum, abomasums, small intestine, large intestine and rectum) and other internal organs (liver, spleen, lungs and heart) of Hanwoo (Korean cattle) steers fed diets of compound feed and rice straw by the age from 6 to 30 months old. In the experiment, Two hundreds of Hanwoo steers were allocated in one of two compound feed feeding treatments. The treatment groups were 1) feeding level 1 group fed 1.2 to 1.5% compound feed per kg body weight (BW) in the growing period, 1.7 to 1.8% compound feed per kg BW in the early fattening period, and compound feed ad libitum in the late fattening period and 2) feeding level 2 group fed compound feed ad libitum through the whole period. In every two months, eight steers in each group were slaughtered and the length and weight of the organs of the animals were measured. The weight of the reticulo-rumen was higher (p<0.05) in the group 2 at the age of 14 months. The abomasum weight of group 2 was higher than that of group 1 at the ages of 12 (p<0.01) and 20 months (p<0.05). The weights of the liver, lung and heart of steers in the group 2 were higher (p<0.05) than those in group 1 before 18 months old. At the ages of 8 (p<0.1), 10 (p<0.001), 12 (p<0.01), 16 (p<0.01) and 24 months (p<0.05), the abomasum of steers in the group 1 was longer than that in the group 2. The length of liver in both groups was sharply increased from 6 to 8 months old and then the increase was steady, while the length in the group 2 at the age of 12 months was significantly longer (p<0.01) than that in the group 1. The results indicate that the most organs examined showed the higher development in the feeding level 2 than in the feeding level 1 until the age before 18 months when the steers in the feeding level group 1 were given the compound feed ad libitum.
Digestive Organs;Hanwoo Steers;Compound Feed;Rice Straw;
 Cited by
AOAC. 1990. Official methods of analysis (15th), Association of Official Analytical Chemist. Washington, DC, USA.

Baldwin, R. L. 2000. Sheep gastrointestinal development in response to different dietary treatments. Small Ruminant Research. 35:39-47. crossref(new window)

Burrin, D. G., C. L. Ferrell, J. H. Eisemann, R. A. Britton and J. A. Nienaber. 1989. Effect of level of nutrition on splanchnic blood flow and oxygen consumption in sheep. Br. J. Nutr. 62:23-34. crossref(new window)

Carstens, G. E., D. E. Johnson, M. A. Ellenberger and J. D. Tatum. 1991. Physical and chemical components of the empty body during compensatory growth in beef steers. J. Anim. Sci. 69:3251-3264. crossref(new window)

Drouillard, J. S., C. L. Ferrell, T. J. Klopfenstein and R. A. Britton. 1991a. Compensatory growth following metabolizable protein or energy restrictions in beef steers. J. Anim. Sci. 69:811-818. crossref(new window)

Drouillard, J. S., T. J. Klopfenstein, R. A. Britton, M. L. Bauer, S. M. Gramlich, T. J. Wester and C. L. Ferrell. 1991b. Growth, body composition and visceral organ mass and metaboism in lambs during and after metabolizable protein or net energy restrictions. J. Anim. Sci. 69:3357-3375. crossref(new window)

Ferrell, C. L. and K. J. Koong. 1986. Influence of plane of nutrition on body composition, organ size and energy utilization of Sprague-Dawley rats. J. Nutr. 116:2525-2535.

Ferrell, C. L. and T. G. Jenkins. 1985. Cow type and the nutritional environment: Nutritional aspects. J. Anim. Sci. 61:725-741. crossref(new window)

Ferrell, C. L., L. J. Koong and J. A. Nienaber. 1986. Effect of previous nutrition on body composition and maintenance energy costs of growing lambs. Br. J. Nutr. 56:595-605. crossref(new window)

Fluharty, F. L. and K. E. McClure. 1997. Effects of dietary energy intake and protein concentration on performance and visceral organ mass in lambs. J. Anim. Sci. 75:604-610. crossref(new window)

Freetly, H. C., C. L. Ferrell, T. G. Jenkins and A. L. Goetsch. 1995. Visceral oxygen consumption during chronic feed restriction and realimentation in sheep. J. Anim. Sci. 73:843-852. crossref(new window)

Hamada, T., S. Maeda and K. Kameoka. 1976. Factors influencing growth of rumen, liver and other organs in kids weaned from milk replacers to solid foods J. Dairy Sci. 59:1110-1118. crossref(new window)

Hogg, B. W. 1991. Compensatory growth in ruminants. In: Grwoth Regulation in Farm Animals. (Ed. A. M. Pearson and T. R. Dutson). Elsevier Applied Science, New York, USA.

Johnson, D. E., K. A. Johnson and R. L. Baldwin. 1990. Changes in liver and gastrointestinal tract energy demands in response to physiological workload in ruminants. J. Nutr. 120:649-655. crossref(new window)

Ko, Y. D., J. H. Kim and C.-H. Kim. 2001. Influence of whole crop corn silage ensiled with poultry manure on the performance and carcass quality of Hanwoo steers. Asian-Aust. J. Anim. Sci. 14:1133-1137. crossref(new window)

Murray, D. M., N. M. Tulloh and W. H. Winter. 1977. The effect of three different rates on some offal components of Angus cattle carcass composition. J. Agric. Sci. 89:119-128. crossref(new window)

Nangia, O. P., N. Singh, J. P. Puri and S. L. Garg. 1982. Note on the early development of rumen function in buffalo-calves. 2. Postnatal development of stomach compartments as related to age and diet in young buffalo-calves. Indian J. Animal Sci. 52:939-943.

Nocek, J. E., C. W. Heald and C. E. Polan. 1984. Influence of ration physical form and nitrogen availability on ruminal morphology of growing bull calves. J. Dairy Sci. 67:334-343. crossref(new window)

Reynolds, C. K. and G. B. Huntington. 1988. Partition of portaldrained visceral net flux in beef steers. I. Blood flow and net flux of oxygen, glucose and nitrogenous compounds across stomach and post-stomach tissues. Br. J. Nutr. 60:539-551. crossref(new window)

Reynolds, C. K., H. F. Tyrrell and P. J. Reynolds. 1991. Effects of diet forage-to-concentrate ration and intake on energy metabolism in growing beef heifers: whole body energy and nitrogen balance and visceral heat production. J. Nutr. 121:994-1003. crossref(new window)

Sainz, R. D., F. De la Torre and J. W. Oltjen. 1995. Compensatory growth and carcass quality in growth-restricted and refed beef steers. J. Anim. Sci. 73:2971-2979. crossref(new window)

SAS. 1996. SAS/STAT(R) User's Guide, version 6.12. SAS Institute, Inc., Cary, NC, USA.

Thivand, P., R. Toullec and P. Guilloteau. 1980. In: Digestive Physiology and Metabolism in Ruminants. AVI Publ. Co., Inc. Westport, CN. USA.

Wester, T. J., R. A. Britton, T. J. Klopfenstein, G. A. Ham, D. T. Hickok and C. R. Krehbiel. 1995. Differential effects of plane of protein or energy nutrition on visceral organs and hormones in lambs. J. Anim. Sci. 73:1674-1688. crossref(new window)