Feeding behavior of lambs fed diets containing old man saltbush hay

Authors

  • 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

DOI:

https://doi.org/10.17533/udea.rccp.v34n4a03

Keywords:

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

Abstract


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

https://orcid.org/0000-0002-7458-9482
Department of Zootechnics, Federal University of Alagoas, Arapiraca, Alagoas, Brazil.

Hirasilva Borba, São Paulo State University

https://orcid.org/0000-0001-7057-3945
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

https://orcid.org/0000-0001-9605-1096
Agricultural Research Center of the Semi Arid Tropic, Brazilian Agricultural Research Corporation, Petrolina, Bahia, Brazil.

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

https://orcid.org/0000-0002-8792-1587
Biodiversity and Forest Institute, Federal University of Western Pará, Santarém, Pará, Brazil.

Oscar Boaventura-Neto, Federal University of Alagoas

https://orcid.org/0000-0002-5064-861X
Viçosa Educational Unit, Federal University of Alagoas, Viçosa, Alagoas, Brazil.

Salete Alves-de-Moraes, Brazilian Agricultural Research Corporation

https://orcid.org/0000-0002-8329-0933
Agricultural Research Center of the Semi Arid Tropic, Brazilian Agricultural Research Corporation, Petrolina, Bahia, Brazil.

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

https://orcid.org/0000-0002-4108-6782
Departament of Zootechnics, Federal University of Bahia, Salvador, Bahia, Brazil.

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

https://orcid.org/0000-0002-1154-8579
Department of Zootechnics, Federal University of Alagoas, Arapiraca, Alagoas, Brazil.

Douglas dos-Santos-Pina, Federal University of Bahia

https://orcid.org/0000-0002-5625-1453
Departament of Zootechnics, Federal University of Bahia, Salvador, Bahia, Brazil.

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Published

2020-11-30

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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