Feeding behavior of lambs fed diets containing old man saltbush hay


  • Greicy-Mitzi Bezerra-Moreno Federal University of Alagoas
  • Hirasilva Borba São Paulo State University
  • Gherman G. Leal-de-Araújo Brazilian Agricultural Research Company
  • Luis-Gabriel Alves-Cirne Federal University of Western Pará
  • Oscar Boaventura-Neto Federal University of Alagoas
  • Salete Alves-de-Moraes Brazilian Agricultural Research Corporation
  • Gleidson-Giordano Pinto-de-Carvalho Federal University of Bahia
  • Dorgival M. de Lima-Júnior Federal University of Alagoas
  • Douglas dos-Santos-Pina Federal University of Bahia




alternative feedstuff, chewing, ethology, feed efficiency, intake, feedlot, lamb, old man saltbush, rumination efficiency, sheep, weight gain


Background: We hypothesized that a diet with old man saltbush hay used as an alternative source of nutrients could partially replace the concentrate in the feeding of feedlot lambs. Objective: This study evaluated the behavior and performance of lambs fed diets containing increasing levels of old man saltbush hay plus concentrate. Methods: Twenty-four castrated Santa Inês lambs at approximately eight months of age (22 ± 1.97 kg) were confined in a randomized complete design and fed diets containing 30, 40, 50, and 60% (dry matter: DM) of old man saltbush hay. Results: The intake of DM and neutral detergent fiber was not affected (p>0.05) by the level of old man saltbush hay. Intake of mineral salt decreased (p<0.01) as the proportion of old man saltbush in the diet increased. Weight gain (kg) and feed efficiency worsened (p<0.05) with 40% inclusion of old man salt bush hay. The time spent on feeding and chewing increased (p<0.05), while idle time was reduced (p<0.01) with dietary inclusion of old man saltbush. Feed efficiency decreased (p<0.05) with the inclusion of old man saltbush. Conclusion: Dietary inclusion of old man saltbush affects the feeding behavior and performance of lambs in feedlot.

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Author Biographies

Greicy-Mitzi Bezerra-Moreno, Federal University of Alagoas

Department of Zootechnics, Federal University of Alagoas, Arapiraca, Alagoas, Brazil.

Hirasilva Borba, São Paulo State University

Department of Technology of Products of Animal Origin, São Paulo State University, Jaboticabal, São Paulo, Brazil.

Gherman G. Leal-de-Araújo, Brazilian Agricultural Research Company

Agricultural Research Center of the Semi Arid Tropic, Brazilian Agricultural Research Corporation, Petrolina, Bahia, Brazil.

Luis-Gabriel Alves-Cirne, Federal University of Western Pará

Biodiversity and Forest Institute, Federal University of Western Pará, Santarém, Pará, Brazil.

Oscar Boaventura-Neto, Federal University of Alagoas

Viçosa Educational Unit, Federal University of Alagoas, Viçosa, Alagoas, Brazil.

Salete Alves-de-Moraes, Brazilian Agricultural Research Corporation

Agricultural Research Center of the Semi Arid Tropic, Brazilian Agricultural Research Corporation, Petrolina, Bahia, Brazil.

Gleidson-Giordano Pinto-de-Carvalho, Federal University of Bahia

Departament of Zootechnics, Federal University of Bahia, Salvador, Bahia, Brazil.

Dorgival M. de Lima-Júnior, Federal University of Alagoas

Department of Zootechnics, Federal University of Alagoas, Arapiraca, Alagoas, Brazil.

Douglas dos-Santos-Pina, Federal University of Bahia

Departament of Zootechnics, Federal University of Bahia, Salvador, Bahia, Brazil.


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How to Cite

Bezerra-Moreno, G.-M., Borba, H., Leal-de-Araújo, G. G., Alves-Cirne, L.-G., Boaventura-Neto, O., Alves-de-Moraes, S., Pinto-de-Carvalho, G.-G., de Lima-Júnior, D. M., & dos-Santos-Pina, D. (2020). Feeding behavior of lambs fed diets containing old man saltbush hay. Revista Colombiana De Ciencias Pecuarias, 34(4), 267–277. https://doi.org/10.17533/udea.rccp.v34n4a03



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