Ingestive Behavior of Lambs Confined in Individual and Group Stalls

  • Filho, A. Eustaquio (Southwest State University of Bahia) ;
  • Carvalho, G.G.P. (Federal University of Bahia) ;
  • Pires, A.J.V. (Southwest State University of Bahia) ;
  • Silva, R.R. (Southwest State University of Bahia) ;
  • Santos, P.E.F. (Southwest State University of Bahia) ;
  • Murta, R.M. (Instituto Federal do Norte de Minas Gerais) ;
  • Pereira, F.M. (Southwest State University of Bahia)
  • Received : 2013.04.14
  • Accepted : 2013.08.18
  • Published : 2014.02.01


The experiment was conducted to evaluate the ingestive behavior of lambs confined in individual and group stalls. We used thirty-four lambs in their growing phase, aged an average of three months, with mean initial live weight of $17.8{\pm}5.2$ kg. They were allotted in a completely randomized design with 24 animals kept in individual stalls and 10 animals confined as a group. The experiment lasted for a total of 74 days, and the first 14 days were dedicated to the animals' adaption to the management, facilities and diets. The data collection period lasted 60 days, divided into three 20-d periods for the behavior evaluation. The animals were subjected to five days of visual observation during the experiment period, by the quantification of 24 h a day, with evaluations on the 15th day of each period and an interim evaluation consisting of two consecutive days on the 30th and 31st day of the experiment. The animals confined as a group consumed less (p<0.05) fiber. However, the animals confined individually spent less (p<0.05) time on feeding, rumination and chewing activities and longer in idleness. Therefore, the lower capacity of lambs confined in groups to select their food negatively affects their feeding behavior.




  1. Burger, P. J., J. C. Pereira, A. C. Queiroz, J. F. C. Silva, S. C. Valadares Filho, P. R. Cecon, and A. D. P. Casali. 2000. Ingestive behavior in Holstein calves fed diets with different concentrate levels. R. Bras. Zootec. 29:236-242.
  2. Carvalho, G. G. P., A. J. V. Pires, R. R. Silva, B. M. A. Carvalho, H. G. O. Silva, and L. M. Carvalho. 2007a. Methodological aspects of feeding behaviour of sheep fed ammoniated elephantgrass and agro-industrial by-products. R. Bras. Zootec. 36:1105-1112.
  3. Carvalho, G. G. P., A. J. V. Pires, R. R. Silva, C. M. Veloso, and H. G. O. Silva. 2006. Ingestive behaviour of sheep fed with ammoniated or non-ammoniated elephantgrass silage and agro industrial by-products. R. Bras. Zootec. 35:1805-1812.
  4. Carvalho, G. G. P., A. J. V. Pires, H. G. O. Silva, C. M. Veloso, and R. R. Silva. 2007b. Methodological aspects of chewing activity of dairy goats fed cocoa meal or palm cake. R. Bras. Zootec. 36:103-110.
  5. Detmann, E., M. F. Paulino, L. S. Cabral, S. C. Valadares Filho, P. R. Cecon, J. T. Zervoudakis, R. P. Lana, M. I. Leão, and A. J. N. Melo. 2005. Simulation and validation of digestive kinetic parameters using an in vitro gas production system in crossbred steers with pasture supplementation. R. Bras. Zootec. 34:2112-2122.
  6. Fischer, V., A. G. Deswysen, L. Despres, P. Dutilleul, and J. F. P. Lobato. 1998. Nycterohemeral patterns of ingestive behavior of sheep. R. Bras. Zootec. 27:362-369.
  7. Fischer, V., P. Dutilleul, A. G. Deswysen, L. Dèspres, and J. F. P. Lobato. 2000. Use of time-dependent transition probabilities for quantitative analysis of ingestive behavior of sheep. Part I. Rev. Bras. Zootec. 29:1811-1820.
  8. Licitra, G., T. M. Hernandez, and P. J. Van Soest. 1996. Standardization of procedures for nitrogen fractionation of ruminant feed. Anim. Feed Sci. Technol. 57:347-358.
  9. Marques, J. A., D. Maggioni, and J. J. S. Abrahao. 2005. Behavior of young bulls in confinement housed separately or in group. Arch. Latinoam. Prod. Anim. 13:97-102.
  10. Marques, J. A., A. P. Pinto, J. J. A. Abrahão, and W. G. Nascimento. 2008. Intervals between observations for ingestive behavior evaluation of young bulls in feedlot. Semina: Ciencias Agrarias, 29:955-960.
  11. Mertens, D. R. 2002. Gravimetric determination of amylase-treated neutral detergent fiber in feeds with refluxing in beakers or crucibles: collaborative study. J. AOAC Int. 85:1217-1240.
  12. National Research Council (NRC). 2007. Nutrient requirements of small ruminants. Washington, DC: National Academy Press. p. 362.
  13. Pinheiro, A. A., C. M. Veloso, H. A. Santana Júnior, A. L. Rocha Neto, R. R. Silva, F. B. L. Mendes, L. N. Oliveira, S. T. Azevedo, and U. Cecato. 2011. Evaluation of the intervals and numbers of observations on the ingestive behavior of dairy heifers confined. Revista Brasileira de Saude e Producao Animal, Salvador, 12:480-490.
  14. Prince, E. O., T. E. Adams, and C. C. Huxoll. 2003. Aggressive behavior is reduced in bulls actively immunized against gonadotropin-releasing hormone. J. Anim. Sci. 81:411-415.
  15. Silva, D. J. and A. C. Queiroz. 2002. Analise de alimentos: metodos quimicos e biologicos. Vicosa: UFV. p. 235.
  16. Silva, R. R., F. F. Silva, I. N. Prado, G. G. P. Carvalho, I. Franco, F. Mendes, C. Cardoso, A. Pinheiro, and D. Souza. 2006. Methodology for studying the behavior of calves in confinement during the post-weaning phase. Archivos Latinoamericanos de Produccion Animal, 14:135-138.
  17. Van Soest, P. J. 1994. Nutritional ecology of the ruminant. 2.ed. Ithaca: Cornell University Press. p. 476.

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