Effects of Restricted Feeding on Performance, Carcass Quality and Hormone Profiles in Finishing Barrows

  • Cho, S.B. (Nutrition Physiology Division, National Livestock Research Institute, RDA) ;
  • Cho, S.H. (Nutrition Physiology Division, National Livestock Research Institute, RDA) ;
  • Chang, S.S. (Nutrition Physiology Division, National Livestock Research Institute, RDA) ;
  • Chung, I.B. (Nutrition Physiology Division, National Livestock Research Institute, RDA) ;
  • Lim, J.S. (Department of Agricultural Biotechnology, Seoul National University) ;
  • Kil, D.Y. (Department of Agricultural Biotechnology, Seoul National University) ;
  • Kim, Yoo Yong (Department of Agricultural Biotechnology, Seoul National University)
  • Received : 2006.05.27
  • Accepted : 2006.09.05
  • Published : 2006.11.01


To investigate the effects of feeding restricted on growth, carcass characteristics and plasma profiles in an attempt for optimum responses, a total of 108 cross-bred finishing barrows [(Landrace${\times}$Yorkshire)${\times}$Duroc]weighing an average of $46.88{\pm}0.52kg$ were assigned in a randomized complete block (RCB) design to one of four treatments with three replicates and nine pigs per pen. Feeding regimens were, 1) ad libitum from 50 kg to market weight (Ad 3/3), 2) restricted feeding from 90 kg to market weight (Ad 2/3), 3) restricted feeding from 70 kg to market weight (Ad 1/3), and 4) restricted feeding from 50 kg to market weight (Ad 0/3). During the experimental period, average daily feed intake (ADFI) was decreased from 2.53 kg (AD 3/3) to 2.09 kg (AD 0/3) with increasing restricted feeding duration of (p<0.05). Average daily gain (ADG) of AD 3/3 (0.79 kg) was significantly higher (p<0.05) than those of AD 1/3 (0.74 kg) or AD 0/3 (0.72 kg). Feed efficiency was not influenced by restriction regimens. Blood IGF-I concentrations were increased from 74.14 to 134.25 (167.36-115.66) ng/ml as body weight increased. Blood leptin concentrations were affected by feed intake level and coincided with blood IGF-I concentrations. Most of carcass characteristics were not significantly affected by restricted feeding, however cooking losses in AD 1/3 and Ad 0/3 treatment diet were higher than those in Ad 3/3 and Ad 2/3. In addition, there was a trend that backfat thickness was lowered in proportional to decreasing feed intake (p>0.05). In conclusion, restricted feeding improved feed efficiency after 50 kg body weight without deteriorating the pork quality of barrows.


  1. Almeida, F. R. C. L., J. Mao, S. Novak, J. R. Cosgrove and G. R. Foxcroft. 2001. Effects of different patterns of feed restriction and insulin treatment during the luteal phase on reproductive, metabolic, and endocrine parameters in cyclic gilts. J. Anim. Sci. 79:200-212
  2. AOAC. 1995. Official Methods of analysis. 16th ed. Association of Official Analytical Chemists, Arlington, VA
  3. Blair, H. T., S. N. McCutcheon, D. D. S. Mackenzie, P. D. Gluckman and J. E. Ormsby. 1987. Variation in plasma concentration of insulin-like growth factor-I and its covariation with liveweight in mice. Aust. J. Biol. Sci. 40:287-293
  4. Campbell, R. G. and M. R. Taverner. 1988. Genotype and sex effects on the relationship between energy intake and protein deposition in growing pigs. J. Anim. Sci. 66:676-686
  5. Dammacco, F., M. F. Boghen, F. Camanni, M. Cappa, C. Ferrari, E. Ghigo, G. Giordano, S. Loche, F. Minuto, M. Lucci, E. E. Muller and the Italian Collaborative Group of Neuroendocrinology. 1993. Somatotropic function in short stature: Evaluation by integrated auxological and hormonal indices in 214 children. J. Clin. Endocrinol. Metab. 77:68-72
  6. Hahn, J. D., R. R. Biehl and D. H. Baker. 1995. Ideal digestible lysine level for early- and late- finishing swine. J. Anim. Sci. 73:773-784
  7. Han, I. K., J. H. Kim, K. S. Chu, Z. N. Xuan, K. S. Shon and M. K. Kim. 1998. Effect of phase feeding on the growth performance and nutrient utilization in finishing pigs. Asian-Aust. J. Anim. Sci. 11(5):559-565
  8. Ketelslegers, J. M., D. Maiter, M. Maes, L. E. Underwood and J. P. Thissen. 1996. Nutritional regulation of the growth hormone and insulin-like growth factor-binding proteins. Horm. Res. 42:252-257
  9. Ko, T. G., J. H. Lee, B. G. Kim, T. S. Min, S. B. Cho, In K. Han and Y. Y. Kim. 2004. Effects of phase feeding and sugar beet pulp on growth performance, nutrient digestibility, blood urea nitrogen, nutrient excretion and carcass characteristics in finishing pigs. Asian-Aust. J. Anim. Sci. 17:1150-1157
  10. Mao, J., L. J. Zak, J. R. Cosgrove, S. Shostak and G. R. Foxcroft. 1999. Reproductive, metabolic and endocrine responses to feed restriction and GnRH treatment in lactating primiparous sows. J. Anim. Sci. 77:724-735
  11. Whittemore, C. T. 1987. Elements of pig science. Longman scientific & technical, London
  12. Yen, H. T., D. J. A. Cole and D. Lewis. 1986b. Amino acid requirements of growing pigs. 8. The response of pigs from 50 to 90 kg live weight to dietary ideal protein. Anim. Prod. 43:155
  13. Owens, P. C., K. L. Gatford, P. E. Walton, W. Morley and R. G. Campbell. 1999. The relationship between endogenous insulinlike growth factors and growth in pigs. J. Anim. Sci. 77:2098-2103
  14. van de Ligt, C. P. A., M. D. Lindemann and G. L. Cromwell. 2002. Assessment of chromium tripicolinate supplementation and dietary energy level and source on growth, carcass, and blood criteria in growing pigs. J. Anim. Sci. 80:483-493
  15. Barb, C. R., J. B. Barrett, R. R. Kraeling and G. B. Rampacek. 2001. Serum leptin concentrations, luteinizing hormone and growth hormone secretion during feed and metabolic fuel restriction in the prepubertal gilt. Domest. Anim. Endocrinol. 20:47-63
  16. Hodgson, R. R., G. W. Davis, G. C. Smith, J. W. Savell and H. R. Cross. 1991. Relationships between pork loin palatability traits and physical characteristics of cooked chops. J. Anim. Sci. 69:4858-4865
  17. Bikker, P., M. W. A. Verstegen, B. Kemp and M. W. Bosch. 1996. Performance and body composition of finishing gilts (45 to 85 kilograms) as affected by energy intake and nutrition in earlier life : I. Growth of the body and body components. J. Anim. Sci. 74:806-816
  18. Clapper, J. A. and T. M. Clark. 1999. Serum concentrations of IGF-I and relative amounts of IGF binding proteteins (IGFBPs) in growing boars, barrows and gilts. J. Anim Sci. 77(Suppl. 1):97(Abstr.)
  19. SAS. 1985. SAS User's Guide. SAS Inst. Inc., Cary, NC
  20. DeVol, D. L., F. K. McKeith, P. J. Betchel, J. Novakofski, R. D. Shanks and T. R. Carr. 1988. Variation in composition and palatability traits and relationships between muscle characteristics and palatability in a random sample of pork carcasses. J. Anim. Sci. 66:385-395
  21. Hall, K., A. Hilding and M. Thoren. 1999. Determinants of circulating insulin-like growth factor-I. J. Endocrinol. Invest. 22:48S-57S
  22. Langlois, A. and F. Minvielle. 1989. Comparisons of three-way and backcross swine: I. Growth performance and commercial assessment of the carcass. J. Anim. Sci. 67:2018-2024
  23. Smith, W. J., L. E. Underwood and D. R. Clemmons. 1995. Effects of caloric or protein restriction on insulin-like growth factor-I (IGF-I) and IGF-binding proteins in children and adults. J. Clin. Endoclrinol. 80:443-449
  24. Booth, P. J., J. R. Cosgrove and G. R. Foxcroft. 1996. Endocrine and metabolic responses to realimentation in feed-restricted prepubertal gilts: associations among gonadotropins, metabolic hormones, glucose, and uteroovarian development. J. Anim. Sci. 74:840-848
  25. Quiniou, N., J. Y. Dourmad and J. Noblet. 1996. Effect of energy intake on the performance of different types of pig from 45 to 100 kg body weight. 1. Protein and lipid deposition. Anim. Sci. 63:277-288
  26. Ocak, N. and G. Erener. 2005. The effects of restricted feeding and feed form on growth, carcass characteristics and days to first egg of Japanese quail (Coturnix coturnix japonica). Asian-Aust. J. Anim. Sci. 18:1479-1484
  27. Klindt, J. J., T. Yen and R. K. Christenson. 2001. Level of dietary energy prepubertal growth and reproductive of gilts. J. Anim. Sci. 79:2513-2523
  28. Williams, W. D., G. L. Cromwell, T. S. Stahly and J. R. Overfield. 1984. The lysine requirement of the growing boar versus barrow. J. Anim. Sci. 58:657
  29. Hammell, K. L., J. P. Laforest and J. J. Dufour. 1993. Evaluation of the growth performance and carcass characteristics of commercial pigs produced in Quebec. Can. J. Anim. Sci. 73:495-508
  30. Yen, H. T., D. J. A. Cole and D. Lewis. 1986a. Amino acid requirements of growing pigs. 7. The response of pigs from 25 to 55 kg live weight to dietary ideal protein. Anim. Prod. 43:141-154
  31. Buonomo, F. C., T. J. Lauterio, C. A. Baile and D. R. Campion. 1987. Determination of insulin-like growth factor I (IGF-I) and IGF binding protein levels in swine. Domest. Anim. Endocrinol. 4:23-31
  32. Tullis, J. B. 1981. Protein growth in pigs. Ph. D. Thesis. Univ. of Edinburgh
  33. Lee, C. Y., H. P. Lee, J. H. Jeong, K. H. Baik, S. K. Jin, J. H. Lee and S. H. Sohn. 2002. Effects of restricted feeding, low energy diet, and implantation of trenbolone acetate plus estradiol on growth, carcass traits, and circulating concentrations of insulin-like growth factor (IGF)-I and IGF-binding protein-3 in finishing barrows. J. Anim. Sci. 80:84-93