Effects of enriched mesquite piperidine alkaloid extract in diets with reduced crude protein concentration on the rumen microbial efficiency and performance in lambs

Eliseu Ferreira Brito, Mara Lúcia Albuquerque Pereira, Herymá Giovane de Oliveira Silva, Ana Cláudia Maia Soares, George Soares Correia, Leandro Borges Sousa, Larisse Borges Sousa, Virgínia Patrícia dos Santos Soares and Vanderlúcia Fonseca de Paula
Additional contact information
Eliseu Ferreira Brito: Postgraduate Department of Animal Science, State University of Southwest Bahia, Spring, Itapetinga, Brazil
Herymá Giovane de Oliveira Silva: Postgraduate Department of Animal Science, State University of Southwest Bahia, Spring, Itapetinga, Brazil
Ana Cláudia Maia Soares: Postgraduate Department of Animal Science, State University of Southwest Bahia, Spring, Itapetinga, Brazil
George Soares Correia: Postgraduate Department of Animal Science, State University of Southwest Bahia, Spring, Itapetinga, Brazil
Leandro Borges Sousa: Postgraduate Department of Animal Science, State University of Southwest Bahia, Spring, Itapetinga, Brazil
Larisse Borges Sousa: Postgraduate Department of Animal Science, State University of Southwest Bahia, Spring, Itapetinga, Brazil
Virgínia Patrícia dos Santos Soares: Postgraduate Department of Animal Science, State University of Southwest Bahia, Spring, Itapetinga, Brazil
Vanderlúcia Fonseca de Paula: Postgraduate Department of Animal Science, State University of Southwest Bahia, Spring, Itapetinga, Brazil

Czech Journal of Animal Science, 2020, vol. 65, issue 7, 268-280

Abstract: The objective of this study was to evaluate the effects of enriched mesquite piperidine alkaloid (MPA) extract at 31 mg/kg of dry matter (DM) in diets with 16% or 13% of crude protein (CP) compared to a diet with 16% CP without additive (control) and diets with monensin (MON) at 31 mg/kg DM and 16% or 13% CP. The intake, ingestive behaviour, apparent digestibility, body weight gain, microbial protein synthesis and nitrogen balance were evaluated. A total of 30 uncastrated crossbred Santa Inês × Bergamasca lambs were used and allocated in a completely randomized design. No effects of additives on dry matter (DM), organic matter (OM), neutral detergent fibre (NDF), and non-fibre carbohydrate (NFC) intake were observed in diets with 16% and 13% CP compared to the control diet. The total digestible nutrient intake (g/kg BW) for the diet with MPA 13% CP was lower than for the control diet, while the metabolisable energy intake (MJ/kg BW) did not differ between diets. The DM feeding rate (g/min) was reduced for the diet with MON 13% CP compared to the control diet. There was no difference between MON or MPA with CP 16% or 13% and the control diet in the digestibility of DM, OM, NFC, and NDF. MON in the diet with 13% CP reduced the BW gain, which differed from the control diet, while MPA 13% CP did not differ from the control diet. The microbial protein synthesis efficiency was higher for diets with MPA compared to MON 13% CP and the control diet. Dietary nitrogen retention (g/kg metabolic weight) was lower in diets with 13% CP that differed from the diets with 16% CP. The nitrogen retained as a percentage of ingested and digested nitrogen was unchanged with the use of MPA or MON 13% CP due to lower urinary nitrogen excretion. The MPA 13% CP diet does not affect the performance of lambs by increasing the microbial synthesis efficiency in the rumen.

Keywords: body weight gain; ionophore; phytogenic additives; Prosopis juliflora; sheep (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://cjas.agriculturejournals.cz/doi/10.17221/54/2020-CJAS.html (text/html)
http://cjas.agriculturejournals.cz/doi/10.17221/54/2020-CJAS.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:65:y:2020:i:7:id:54-2020-cjas

DOI: 10.17221/54/2020-CJAS

Access Statistics for this article

Czech Journal of Animal Science is currently edited by Bc. Michaela Polcarová

More articles in Czech Journal of Animal Science from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().