Yeast-fermented cassava as a protein source in cattle feed: systematic review and meta-analysis

Rodrigues, Arlan Araujo; Reis, Sara Silva; Costa, Dinah Correia da Cunha Castro; Santos, Milena Alves Dos; Paulino, Raniere de Sá; Rufino, Marcelo de Oliveira Alves; Neto, Severino Gonzaga

doi:10.1007/s11250-023-03494-7

Cited by 1 publication

(1 citation statement)

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“…The varying results in broilers offered fermented cassava could be ascribed to differences in strains of broilers used, cassava variety, type of microorganisms used for the fermentation, diet composition, and quantity of fermented cassava included in the ration shown to affect chicken performance (Ogbuewu and Mbajiorgu 2022 ). The use of meta-analysis (an advanced statistical method that combined multiple studies on the same topic) to resolve studies with conflicting findings has been reported in the literature (Ogbuewu and Mbajiorgu 2023b ; Rodrigues et al 2023 ). Therefore, this study aimed to use meta-analysis to explore the impact of fermented cassava on growth performance, visceral organ weight, carcass traits, and blood indices of broiler chickens.…”

Section: Introductionmentioning

confidence: 99%

Meta-analysis of blood indices and production physiology of broiler chickens on dietary fermented cassava intervention

Ogbuewu,

Mabelebele,

Mbajiorgu

2023

Trop Anim Health Prod

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The effects of dietary fermented cassava on the blood constituents and production parameters of broiler chickens have been reported with variable outcomes. Therefore, this investigation aimed to explore the impacts of dietary fermented cassava on growth traits, blood constituents, visceral organ, and carcass characteristics of broiler chickens. Four databases were searched for studies that assessed responses of broiler chickens dietary fermented cassava. Eleven articles were used for the investigation, and data generated were analysed using OpenMEE software. A random effects model was used, and effect sizes were presented as standardised mean difference (SMD) at a 95 % confidence interval (CI). Sources of heterogeneity were evaluated using the following modifiers: broiler strain used, cassava form, feeding duration, type of microbes used for the fermentation, and inclusion level of cassava. Results indicate that fermented cassava-based diets increased feed intake (SMD = 0.38; 95 % CI: 0.11, 0.65; P = 0.006), feed conversion ratio (SMD = 1.26; 95 % CI: 0.91, 1.61; P < 0.001), white blood cells (SMD = 1.26; 95 % CI: 0.54, 1.98; P < 0.001), total serum protein (SMD = 1.23; 95 % CI: 0.41, 2.05; P = 0.003), serum cholesterol (SMD = 0.43; 95 % CI: 0.01, 0.85; P = 0.050), serum creatinine (SMD = 2.53; 95 % CI: 0.53, 4.53; P = 0.013), and serum uric acid (SMD = 4.33; 95 % CI: 6.25, 2.41; P < 0.001), but lowered average daily gain and carcass yield, taking heterogeneity into account. Results reveal that studied modifiers were responsible for the inconsistent results among authors. In conclusion, dietary fermented cassava negatively influenced carcass yield, growth performance, and aspects of blood indices of broiler chickens, but did not affect abdominal fat content, visceral organ weights, and cut-part weights. However, more innovative research is needed to improve the feeding quality of cassava using other biotechnological tools in order to maximise its potential as an energy source in broiler chickens.

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Section: Introductionmentioning

confidence: 99%