Desempeño productivo, sanitario y viabilidad económica de ovinos criollos suplementados con bloques multinutricionales a base de harina de hoja de yuca y afrecho de yuca

Emiro Andres Suarez Paternina; Yacerney  Paternina Paternina; Lorena Angelica Aguayo Ulloa; Lorena Ines Mestra Vargas; Jose Edwin Mojica Rodriguez; Adriana Patricia Tofiño Rivera

doi:10.22490/21456453.10351

Vol. 17 No. 2 (2026)

Published 2026-09-26

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Productive performance, health and economic viability of creole sheep supplemented with multinutritional blocks based on cassava leaf meal and cassava bran

DOI: https://doi.org/10.22490/21456453.10351

Emiro Andres Suarez Paternina Colombian Corporation for Agricultural Research - AGROSAVIA

Yacerney Paternina Paternina Colombian Corporation for Agricultural Research - AGROSAVIA

Lorena Angelica Aguayo Ulloa Colombian Corporation for Agricultural Research - AGROSAVIA

Lorena Ines Mestra Vargas Colombian Corporation for Agricultural Research - AGROSAVIA

Jose Edwin Mojica Rodriguez Colombian Corporation for Agricultural Research - AGROSAVIA

Adriana Patricia Tofiño Rivera Colombian Corporation for Agricultural Research - AGROSAVIA

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Abstract
References

Context: In the Colombian Caribbean region, droughts affect the availability and quality of pasture, reducing the productivity of sheep production systems. Given this scenario, sustainable food strategies that minimize the impact of seasonality are required. An efficient alternative is the use of multi-nutritional blocks (BMN), made from agricultural by-products such as cassava leaves and cassava bran, which can provide essential nutrients for animal production.

Knowledge gap: although there is a growing interest in the region in using cassava crop by-products for animal feed, there is still a knowledge gap related to their effect on production parameters, health and carcass quality of creole sheep. Current information is limited and focuses mainly on animal response, making it difficult to formulate technical recommendations for its inclusion in BMN as a nutritional strategy in critical periods.

Objective: to evaluate the productive performance, health and economic viability of creole sheep supplemented with BMN based on cassava leaf meal and cassava bran.

Methodology: the study was carried out at the Turipaná Research Center - El Carmen de Bolívar (AGROSAVIA) site, and it used twenty-one whole creole sheep, 90 days old and weighing 16.1 ± 4.1 kg, distributed in three treatments: T1 = grazing only; T2 = grazing + BMN with 15% bran and 20% cassava leaf meal (BMNF1); T3 = grazing + BMN with 20% bran and 30% cassava leaf meal (BMNF2). The nutritional composition of the raw materials, pastures and BMN was characterized. Forage availability and health status were evaluated using Famacha®, egg count per gram of feces (e.g., h.p.g.) and hematocrit. Dry matter intake was estimated using chromium oxide as an external marker and acid detergent indigestible fiber (ADFi) as an internal marker. Animal performance was determined from daily weight gain and body condition. Carcass quality was evaluated by determining hot carcass weight (PCC), cold carcass weight (PCF) and hot and cold carcass yield (RCC; RCF). Researchers also measured pH at 24 hours postmortem (pH24) and determined the tissue composition of the back after dissection. Finally, an economic analysis was performed. The information was analyzed by ANOVA under a completely randomized design. When significant differences were detected (p < 0.05), means were compared by Tukey's test.

Results and conclusions: BMN consumption remained similar among animals (p > 0.05), with an average of 128.5 kg·animal⁻¹·day⁻¹. Sheep supplemented with BMN recorded higher total dry matter intake (CMST), reaching 1,127 and 0.895 kg·animal⁻¹·day⁻¹for animals receiving BMNF1 (20HY–15AY) and BMNF2 (30HY–20AY), respectively. Similarly, there was an observed increase (p<0.05) in crude protein intake (0,160 and 0,130 kg·animal⁻¹·day⁻¹), higher in animals supplemented with BMN compared to the control group (0,070kg·animal⁻¹·day⁻¹). The supplemented animals also showed the highest weight gains (p<0.05) with 8,21 and 8,09 kg for BMNF1 (20HY-15AY) and BMNF2 (30HY-20AY), compared to 5,98 kg in the control. No significant differences were found in carcass quality or tissue composition. BMN supplementation generated higher net income (US$5,12 and US$5,40) compared to the control (US$2,18). Overall, the BMNF2 (30HY–20AY) formulation offers a more efficient balance between productivity and profitability, making it the most recommended alternative for sheep producers under tropical conditions.

keywords: agro-industrial by-products, supplementation, forage consumption, weight gain, feed sustainability

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Suarez Paternina, E. A., Paternina Paternina, Y. ., Aguayo Ulloa, L. A., Mestra Vargas, L. I., Mojica Rodriguez , J. E., & Tofiño Rivera, A. P. (2026). Productive performance, health and economic viability of creole sheep supplemented with multinutritional blocks based on cassava leaf meal and cassava bran. Revista De Investigación Agraria Y Ambiental, 17(2), 203-228. https://doi.org/10.22490/21456453.10351

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