The effect of Leucaena leucocephala on beef production and its toxicity in the Chaco Region of Argentina

Radrizzani, Alejandro; Nasca, José Andres

doi:10.17138/tgft(2)127-129

Cited by 10 publications

(14 citation statements)

References 4 publications

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“…Farmers are good at adapting to change, responding to year-to-year fluctuations in rainfall and prices by varying operational strategies, or adopting new technologies (Asseng and Pannell, 2013). Technologies like perennial forage shrubs can play a substantial role in the region, increasing productivity (Radrizzani and Nasca, 2014), enhancing economic returns and helping address environmental challenges (Monjardino et al, 2010), by reducing the amount of external inputs.…”

Section: Productive Resultsmentioning

confidence: 99%

Efficiency and stability in subtropical beef cattle grazing systems in the northwest of Argentina

Nasca

Feldkamp

Arroquy

et al. 2015

Agricultural Systems

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Section: Productive Resultsmentioning

confidence: 99%

Efficiency and stability in subtropical beef cattle grazing systems in the northwest of Argentina

Nasca

Feldkamp

Arroquy

et al. 2015

Agricultural Systems

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“…The introduction of legumes on grass-based pastures improves animal energy and protein intake, feed conversion and rumen function, as well as increases mineral and vitamin availabilities [39,63]. Steers grazed on Leucaena leucocephala and Urochloa brizantha pastures had higher weight gains compared to those on Urochloa brizantha only pasture [64].…”

Section: Augmenting Pastures With Legumesmentioning

confidence: 99%

Diet and Genetics Influence Beef Cattle Performance and Meat Quality Characteristics

Mwangi

Charmley

Gardiner

et al. 2019

Foods

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A comprehensive review of the impact of tropical pasture grazing, nutritional supplementation during feedlot finishing and fat metabolism-related genes on beef cattle performance and meat-eating traits is presented. Grazing beef cattle on low quality tropical forages with less than 5.6% crude protein, 10% soluble starches and 55% digestibility experience liveweight loss. However, backgrounding beef cattle on high quality leguminous forages and feedlot finishing on high-energy diets increase meat flavour, tenderness and juiciness due to improved intramuscular fat deposition and enhanced mono- and polyunsaturated fatty acids. This paper also reviews the roles of stearoyl-CoA desaturase, fatty acid binding protein 4 and fatty acid synthase genes and correlations with meat traits. The review argues that backgrounding of beef cattle on Desmanthus, an environmentally well-adapted and vigorous tropical legume that can persistently survive under harsh tropical and subtropical conditions, has the potential to improve animal performance. It also identifies existing knowledge gaps and research opportunities in nutrition-genetics interactions aimed at a greater understanding of grazing nutrition, feedlot finishing performance, and carcass traits of northern Australian tropical beef cattle to enable red meat industry players to work on marbling, juiciness, tenderness and overall meat-eating characteristics.

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“…Leucaena seed was zero till-planted in double row hedgerows (1 m apart) with 5 m between the twin hedgerows. Eight months after leucaena establishment, high grazing pressure was imposed to avoid leucaena plants growing too tall (Radrizzani and Nasca 2014), which caused a decline in grass cover and production (visual observation but not measured in this study) in the inter-row space. In December 2011, the interrow pasture was cultivated and overseeded with Chloris gayana cv.…”

Section: Pasture Descriptionmentioning

confidence: 91%

“…Planting the multipurpose forage tree legume, leucaena (Leucaena leucocephala ssp. glabrata), has been reported to improve topsoil fertility in hedgerows in silvopastoral systems (Radrizzani et al 2011;Conrad et al 2017) and to increase livestock productivity (Radrizzani and Nasca 2014). Although there is some information in the Chaco region on carbon sequestration in tropical grass pastures (Banegas 2014) and in silvopastoral systems (Corbella et al 2015), there is no published information on changes in soil OC and TN levels and their fractions (particulate and associate forms) under grazed leucaena pastures.…”

Section: Introductionmentioning

confidence: 99%

<i>Leucaena leucocephala</i> introduction into a tropical pasture in the Chaco region of Argentina. Effects on soil carbon and total nitrogen

Banegas

Corbella

Viruel

et al. 2019

Trop. grassl.-Forrajes trop.

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Keynote paper presented at the International Leucaena Conference, 1‒3 November 2018, Brisbane, Queensland, Australia.The introduction of leucaena (Leucaena leucocephala), apart from increasing animal production, improves soil fertility through biological nitrogen (N) fixation and its deep-rooted system. There is limited information on carbon and N dynamics in hedgerow silvopastoral systems, particularly in the subsoil profile. The concentrations and vertical distribution of organic carbon (OC) and total N , and their fractions (particulate and associate forms) in the profile (0‒100 cm) of a 4-year-old leucaena stand in a Urochloa brizantha-Chloris gayana pasture were compared with those in the adjacent pure tropical grass (U. brizantha) pasture. Leucaena introduction increased the OC concentration in the subsoil (20‒100 cm) by 45%, particularly the stable form (associate OC) in the deepest horizon (50‒100 cm). This was attributed to a greater abundance of leucaena roots deeper in the profile than for grass. Leucaena also enhanced by 7.6% the N concentration (from 0.131 to 0.141%) in the topsoil (0‒20 cm) associated with an increment in the labile form (particulate organic N), due to leaf deposition, recycling of animal feces and nodule-N turnover from N fixation. Leucaena establishment has the potential to improve soil fertility and hence availability of N to companion grass growth, and can be utilized as a greenhouse gas mitigation strategy.

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The effect of Leucaena leucocephala on beef production and its toxicity in the Chaco Region of Argentina

Cited by 10 publications

References 4 publications

Efficiency and stability in subtropical beef cattle grazing systems in the northwest of Argentina

Efficiency and stability in subtropical beef cattle grazing systems in the northwest of Argentina

Diet and Genetics Influence Beef Cattle Performance and Meat Quality Characteristics

<i>Leucaena leucocephala</i> introduction into a tropical pasture in the Chaco region of Argentina. Effects on soil carbon and total nitrogen

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