cassava root
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2022 ◽  
Vol 172 ◽  
pp. 104353
Author(s):  
Jenifer Sthephanie Araújo da Silva ◽  
Erika Valente de Medeiros ◽  
Diogo Paes da Costa ◽  
Carlos Alberto Fragoso de Souza ◽  
Julyana Braga de Oliveira ◽  
...  

2022 ◽  
Vol 133 ◽  
pp. 126448
Author(s):  
Rebecca Oiza Enesi ◽  
Stefan Hauser ◽  
Pieter Pypers ◽  
Christine Kreye ◽  
Meklit Tariku ◽  
...  

2021 ◽  
Vol 150 ◽  
pp. 105810
Author(s):  
Friday Ekeleme ◽  
Alfred Dixon ◽  
Godwin Atser ◽  
Stefan Hauser ◽  
David Chikoye ◽  
...  

2021 ◽  
Vol 48 (5) ◽  
pp. 257-267
Author(s):  
K. O. Ande ◽  
A. O. Oso ◽  
O. O. Oluwatosin ◽  
L. O. Sanni ◽  
K Adebayo

Cassava is higher in supply of carbohydrates than maize and can potentially replace maize as a veritable energy source in poultry diets. A five-week experiment was conducted to investigate the effect of dietary supplementation of two varieties of cassava root meal (CRM) with various additives on growth performance and reproductive traits of pullets. Two hundred and forty 16-weeks old point of lay birdswere allotted to eight dietary treatments in a 2x4 factorial arrangement of white (TME 419) and yellow (ITA/IBD/1368) CRM supplemented with no additive, amino acids (methionine and lysine), enzyme and amino acids+enzyme (A.A+Enz). Growth measurements were recorded from 17 weeks till the start of lay at 21 weeks old and data on reproductive traits were also recorded in each treatment. Variety effect showed improved (p<0.05) live weight gain at a reduced cost in growing pullets fed with diets containing white cassava than yellow. Supplementing white cassava root meal (WCRM) and yellow cassava root meal (YCRM) with additives did not promote growth of the pullets. Pullets fed with diet containing WCRM supplemented with A.A laid the first egg at an earlier age with lower (p<0.05) body weight.In conclusion, feeding white cassava root meal with no additive to growing pullets improved live weight at a reduced cost, although supplementing white cassava root meal with amino acids resulted in the birds coming to lay earlier.     Le manioc est plus riche en glucides que le maïs et peut potentiellement remplacer le maïs en tant que véritable source d'énergie dans l'alimentation des volailles. Une expérience de cinq semaines a été menée pour étudier l'effet de la supplémentation alimentaire de deux variétés de farine de racine de manioc (CRM) avec divers additifs sur les performances de croissance et les caractéristiques de reproduction des poulettes. Deux cent quarante oiseaux de point de ponte âgés de 16 semaines ont été répartis en huit traitements diététiques dans un arrangement factoriel 2x4 de CRM blanc (TME 419) et jaune (ITA/IBD/1368) supplémenté sans additif, d'acides aminés (méthionine et lysine ), enzyme et acides aminés+enzyme (A.A+Enz). Les mesures de croissance ont été enregistrées à partir de 17 semaines jusqu'au début de la ponte à 21 semaines et des données sur les traits de reproduction ont également été enregistrées dans chaque traitement. L'effet de variété a montré une amélioration (p<0,05) du gain de poids vif à un coût réduit chez les poulettes en croissance nourries avec des régimes contenant du manioc blanc plutôt que du jaune. La supplémentation de farine de racine de manioc blanche (WCRM) et de farine de racine de manioc jaune (YCRM) avec des additifs n'a pas favorisé la croissance des poulettes. Les poulettes nourries avec un régime contenant du WCRM supplémenté en AAont pondu le premier œuf à un âge plus précoce avec un poids corporel inférieur (p<0,05). l'ajout d'acides aminés à la farine de racine de manioc blanc a permis aux oiseaux de pondre plus tôt


2021 ◽  
Vol 10 (6) ◽  
pp. 1
Author(s):  
Ngozi L. Edoh ◽  
Ukpabi J. Ukpabi ◽  
John O. Igoli

Cassava roots undergo postharvest physiological deterioration (PPD), and for most varieties it sets in within 72 hours of harvest. An untargeted metabolomics approach combined with a data-driven approach for statistical analysis was used to characterize and profile high beta-carotene cassava varieties with the aim of identifying any relevant metabolite changes that occur during PPD. Sixteen cassava root samples from four cassava lines were planted in a greenhouse and harvested after four months. The samples included four of 2 conventionally bred beta carotene cassava varieties &ndash; UMUCASS 38, UMUCASS 45 and four of 2 transgenic high beta carotene cultivars - EC20-7 and EC20-8 cassava lines. Extracts of fresh cassava roots from 20-100 mg tissues were used for the analyses and data were processed using Elements for Metabolomics software. Starch and lipid metabolites were the major constituents which may help explain the observed differences in starch and dry matter content among the varieties. The results provide further insight in the understanding of PPD and suggestions on controlling this deterioration in cassava are made.


2021 ◽  
Author(s):  
Jitrana Kengkanna ◽  
Alexander Bucksch ◽  
Patompong Johns Saengwilai

2021 ◽  
Vol 2 (3) ◽  
pp. 15-26
Author(s):  
Allou Christian Armel Gnamien ◽  
Amoikon Tiemele Laurent Simon ◽  
Adingra Kouassi Martial-Didier ◽  
Brou Koffi Siméon ◽  
Tano Kablan

Cassava is an important staple food around the world, especially in Africa. It is cultivated throughout the Ivorian territory with predominance in the South. Due to the high demand, some producers opt for an early harvest, neglecting the impact of the harvest stage on the sensory parameters of cassava root derivatives. The objective of this work was to determine the stage of harvest allowing obtaining products of good sensory quality. The sensory characteristics of the attiéké were evaluated at different stages of harvest (11th, 12th, 13th and 14th months after planting the cuttings) of the cassava roots of the Yacé variety which were used for its production. The attiéké obtained in the twelfth month of harvest was generally much appreciated because it was less acidic, less fibrous and more homogeneous and had a better smell. Thus, cassava harvested in the twelfth month of cultivation makes it possible to obtain attiéké with the best sensory characteristics. Therefore, this stage of maturity of cassava roots is recommended for attiéké producers.


2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Phussorn Sumadong ◽  
Anusorn Cherdthong ◽  
Sarong So ◽  
Metha Wanapat

Abstract Background Total fresh cassava root (FCR) production was 275 million tonnes in 2018 which equals 61.1 % of the total production, and Thailand produced 10.7 % FCR of the total production. FCR is one of the main energy source for ruminant. The limitation of FCR utilization is due to the presence of hydrogen cyanide (HCN). The study aimed to evaluate the effect of sulfur, urea and FCR at various levels on in vitro gas production, ruminal fermentation and in vitro degradability. The study hypothesized that: (1) sulfur, urea and FCR have no interaction effect and (2) effect of FCR and urea is related to sulfur addition. Results The study aimed to elucidate the optimum level of elemental sulfur, fresh cassava root (FCR) and urea and their effect on in vitro gas production, ruminal fermentation, thiocyanate concentration, and in vitro degradability. A 3 × 2 × 4 in a completely randomized design were conducted. Factor A was level of sulfur at 0 %, 1 and 2 % of concentrate dry matter (DM), factor B was level of urea at 2 and 4 % of concentrate DM, and factor C was level of the FCR at 0, 200, 300 and 400 mg DM of the total substrate. The study found that elemental sulfur, urea and FCR had no interaction effect on the kinetics of in vitro gas, ruminal fermentation, HCN and in vitro degradability. Elemental sulfur supplementation (P < 0.05) significantly increased the in vitro gas produced from an insoluble fraction (b), in vitro DM degradability and either neutral detergent fiber (NDF) or acid detergent fiber (ADF) degradability and propionate (C3) concentration while decreased the ruminal HCN concentration. Urea levels showed a (P < 0.05) significant increase of the potential extent of in vitro gas production, ruminal ammonia nitrogen (NH3-N) and total volatile fatty acid (TVFA). Fresh cassava root supplementation (P < 0.05) significantly increased the in vitro gas produced from an immediate soluble fraction (a), in vitro gas produced from insoluble fraction, in vitro gas production rate constant, total VFA, C3 concentration and HCN while decreased ruminal pH, acetate and butyrate concentration. It could be concluded that 2 % elemental sulfur, 4 % urea and 300 mg FCR showed a greater effect on in vitro gas production, ruminal fermentation and HCN reduction. Conclusions The study found that elemental sulfur, urea, and FCR had no interaction effect on the kinetics of in vitro gas, total in vitro gas, ruminal fermentation, and HCN concentration. It could be concluded that 2 % elemental sulfur, 4 % urea, and 300 mg FCR showed a greater effect on in vitro gas production, ruminal fermentation, and HCN reduction.


2021 ◽  
Vol 51 (3) ◽  
pp. 191-198
Author(s):  
Juliana Schuch PITIRINI ◽  
Rosana Ingrid Ribeiro dos SANTOS ◽  
Francy Manoely da Silva LIMA ◽  
Ilano Silva Braga do NASCIMENTO ◽  
Jehmison de Oliveira BARRADAS ◽  
...  

ABSTRACT The use of cassava root silage for animal feeding is a suitable option for farmers who grow cassava as an alternative product and for cattle ranchers who have to deal with high prices of corn. Our objective was to determine the effects of cassava genotypes and the correction of soil acidity on the microbial population, fermentation characteristics, chemical composition, aerobic stability and losses of cassava root silage. We used a 2 × 3 factorial design in completely randomized blocks, with four replications. We evaluated two cassava genotypes (Caeté and Manteiguinha) and three methods of soil acidity correction (lime, gypsum, and lime+gypsum). The roots were harvested 11 months after planting, ensiled in PVC silos, and stored for 45 days. No interaction was observed between genotypes and soil acidity correction for any of the evaluated parameters. The silage of Caeté genotype showed the highest concentration of dry matter (421 g kg-1 fresh matter) and non-fibrous carbohydrates (893 g kg-1 dry matter), and the lowest concentrations of neutral detergent fiber (37.1 g kg-1 dry matter) . No significant differences were observed among treatments for lactic acid bacteria, yeast and mold counts in silages. Both genotypes resulted in silages with an adequate fermentation profile and considerably high aerobic stability, but with high effluent loss. The Caeté genotype showed to be potentially better for silage production due to its higher dry matter recovery. Due to the high level of effluent loss, it is recommended to test the effect of a moisture-absorbing additive during the ensiling process of these cassava roots.


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