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Livestock Research for Rural Development, Volume 33, Number 3, March 2021
ISSN 0121-3784


In this and subsequent issues of LRRD, we review some of the steps that were taken, beginning in 2008, to promote research aimed at adapting tropical animal production systems starting from their own environment to reduce their carbon footprint and contribute to the conservation of biodiversity by promoting knowledge and use of its own resources. We propose to continue this series of trials at intervals during 2021. We hope that the information will serve as a guide and encouragement to researchers in tropical countries in planning and executing their own research activities.

The research was done in Cambodia, Lao PDR and Vietnam with support from the MEKARN I and MEKARN II regional projects, financed by the Swedish International Development Agency (Sida).



  1. Adapting systems of livestock production to be compatible with global commitments to restore the health of planet Earth; ecosystems that remove atmospheric carbon and provide food, feed and renewable energy; T R Preston, R A Leng and María E Gomez Z [EDITORIAL]

  2. Impact of tree canopies on selected soil chemical properties and pasture nutritive values in a semi-intensive grazing system in South-western Uganda; D Nabasumba, R Muzira, S Natuha, G Tugume and H Kirunda

  3. Bioeconomic impact of the pastoral plantation project on the steppe rangelands of the Djelfa province, Algeria; Houari A, Djenane A-M and Chettouh B (In french)

  4. Variability and genetic structure in ten Mexican ovine populations; Joel Domínguez-Viveros, Felipe A Rodríguez-Almeida, José A Martínez-Quintana, Francisco J Jahuey-Martínez, Nelson Aguilar-Palma and América Chávez-Martínez

  5. Effect of different drying methods on the mineral content of Seaweed Sargassum sp; Agustinus Paga, Ali Agus, Kustantinah and I Gede Suparta Budisatria

  6. Analysis of variability for 3 local goat breeds near Agadir in Morocco; El Kheyyat H and El Madidi S (In french)

  7. The substitution of fish meal with larvae of Hermetia illucens supplemented with Trichoderma sp on quail's nutritional utility and egg production; Mulyono Mulyono, Widiyanto Widiyanto, Istna Mangisah, Lilik Krismiyanto, Vitus Dwi Yunianto, Budi Ismadi, Bambang Sukamto, Fajar Wahyono and Nyoman Suthama

  8. The use of sprouted grains as dietary feed ingredients for broilers - a brief overview; Sugiharto Sugiharto

  9. The effect of using mannan oligosaccharides extracted from fermented palm kernel cake and cassava by-product mixture in ration on broiler gut profile; Nurhayati, Hartutik, Osfar Sjofjan and Eko Widodo

  10. Biomass production and resprouting capacity in four forage shrubs for small ruminant consumption, La Guajira, Colombia; Darwin Fabian Lombo Ortiz, Juan Ricardo Zambrano Ortiz and Clara Viviana Rúa Bustamante (In spanish)

  11. Improved broiler growth, carcass and meat yields by phyto-additive Chromanone Deamine (ChD) from Aegle marmelos (L) Correa fruits; Sumardi, R Murwani, S Kismiati and P Bintoro

  12. Nutritive value of different processed elephant foot yam (Amorphophallus companulatus) tuber meal for broiler chickens; Theresia Nur Indah Koni, Tri Anggarini Yuniwati Foenay and I Gusti Komang Oka Wirawan

  13. Land use/cover change analysis and its implication on livestock feed resource availabilities in southeastern rangeland of Ethiopia; Matiwos Habte, Mitiku Eshetu, Abiyot Legesse, Melesse Maryo and Dereje Andualem

  14. Descriptive typology of camel farming system in Mauritania; M B Biya, M S Chrif Ahmed, C Y Dieye, A K M Diop, R B Mohamed, M M Salem, M Sidatt, K M Side Elemine, M S Mohamed, F B N’Diaye, G Meiloud, G Konuspayeva and B Faye (In french)

  15. Methane production in vitro rumen incubation of ensiled cassava root and urea is reduced by supplementation with low levels of Brewers’ spent grains and by supplementation with cassava foliage rather than water spinach; Vor Sina and T R Preston

  16. Genetic and phenotypic correlations for reproductive and milk production traits of pure Jersey dairy cows at Adea-Berga, central highland of Ethiopia; N Beneberu, K Alemayehu, W Mebratie, K Getahun, F Wodajo and Z Tesema