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Ingestion and In VivoDigestibility of a Concentrated Granulated Feed Containing Seeds of Moringa oleiferaAssociated with Pennisetum purpureumin Guinea Pigs

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Open Journal of Animal Sciences 2020年第4期10卷 782-791页

作者： David Fokom Wauffo Fernand Tendonkeng Emile Miégoué France-Gina Djoumessi Tobou camara sawa Mama Mouchili Gilles Azangue Jiope Institute of Agricultural Research for Development Bangangte Cameroon Department of Animal Science Faculty of Agronomy and Agricultural Sciences University of Dschang Dschang Cameroon Institute of Agronomic Research of Guinea Conakry Guinea Department of Plant Biology Faculty of Science University of Dschang Dschang Cameroon

In order to contribute to the improvement of guinea pig nutrition through the use of unconventional vegetable protein sources (Moringa oleifera seeds), experimental trials were carried out at the Animal Production and Nutrition Research Unit (URPRONAN) of the University of Dschang in April 2018. Moringa oleifera seeds from North Cameroon were divided into three treatments: the first consisted of whole Moringa oleifera seeds (MO-whole), the second of Moringa oleifera seeds soaked in cold water for 24 hours (MO-water) and the third of peeled Moringa oleifera seeds (MO-peeled). The seeds belonging to these three treatments were analyzed for the determination of the chemical composition before being incorporated into the different concentrates. Each concentrate was then granulated and combined with Pennisetum purpureum to make up the different rations. 40 English Guinea pigs with an average weight of 350 ± 50 g were used to evaluate the ingestion and digestibility of each ration. During the digestibility test which lasted 17 days (10 days of adaptation and 07 days of data collection), each ration was repeated on 10 Guinea pigs. The main results showed that the total tannin and phenol contents decreased significantly (p Moringa oleifera seeds soaked for 24 hours or pulped can be used in guinea pig feed as an alternative source of protein.

关键词： Chemical Composition Digestibility Ingestion Guinea Pigs Moringa oleifera Pennisetum purpureum

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Genetic Diversity of Local Rice Accessions Cultivated in Guinea Based on Agro-Morphological Traits and Identification of Sources of Tolerance to Iron Toxicity

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Agricultural Sciences 2021年第10期12卷 1070-1088页

作者： Mamadou Laho Barry Nerbéwendé sawadogo Mahamadi Hamed Ouédraogo Kiswendsida Romaric Nanema sawa camara Moussa Sié Pauline Bationo-Kando Mahamadou sawadogo Genetic and Plant Breeding Team (EGAP) Biosciences Laboratory Doctoral School of Science and Technology Joseph KI-ZERBO University Ouagadougou Burkina Faso Guinea Institute of Agronomic Research (IRAG) Conakry Guinea Institute of Environment and Agricultural Research Bobo-Dioulasso Burkina Faso

In Guinea, traditional rice varieties are the most widely cultivated in rural areas despite their low yield and high susceptibility to iron toxicity. Moreover, the introduction of new improved varieties tolerant to iron toxicity poses a serious threat to the preservation of the genetic resources of these traditional varieties, whose genetic diversity remains poorly known. The present study therefore aims at a better valorisation of these local rice cultivars through the evaluation of their agromorphological diversity and the identification of genotypes potentially tolerant or resistant to iron toxicity. Thus, 90 accessions collected in the regions of Kindia and Macenta and six controls susceptible or resistant to iron toxicity (AZUCENA, BOUAKE 189, CK 73, IR64, NERICAL 19 and AURYLUX 6) were evaluated in three replicate alpha lattice designs in two sites (Sérédou and Kilissi) using 16 agromorphological traits. The results showed significant agromorphological variability of the traditional accessions at both sites for all qualitative and most quantitative traits studied. In addition, 30 local cultivars expressed similar or higher grain yields than the resistant or tolerant controls at both sites, of which 12 were found to be stable at both sites. Of the 12 cultivars identified, five were resistant and seven tolerant to iron toxicity. These 12 accessions could be used in the varietal improvement of lowland rice in Guinea Conakry.

关键词： Local Varieties Oryza Genetic Variability Environmental Stress Guinea

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