Production et caractéristiques physico-chimiques des œufs de la poule locale de Niamey (Niger)

Taffa, Adamou Guisso; Issa, Salissou; Ali, Maman-Bachir Souley; Detilleux, Johann; Chaibou, Mahamadou; Moula, Nassim

doi:10.25518/2295-8010.2144

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…On the other hand, swelling was low for temperatures between 50 and 60 °C because starch granules only react to thermal shock from 65°C onwards [33]. The hydration rate and percentage of solubilized starch (19.22 gw/gdm and 20.14%) were close to those (22 gw/gdm and 22%) determined by Singh et al [37] for ordinary maize starch but remain higher than those (6.2 gw/gdm and 11.9%; 15.3 gw/gdm and 11%) of different sorghum cultivars grown in India [38]. According to Amani et al [39], the study of the evolution of solubility as a function of swelling generally shows the existence of a linear relationship between the two phenomena, whereby an increase in swelling is accompanied by a high degree of solubility.…”

Section: Discussionsupporting

confidence: 68%

Physicochemical and functional properties of native starch from seeds of Pterocarpus santalinoides

Etche¹,

Kouadio²,

Digbeu³

et al. 2022

World J. Bio. Pharm. Health Sci.

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In order to enhance the value of the seeds of P. santalinoides, consumed like peanut seeds by certain populations of Côte d'Ivoire, studies on a few physicochemical and functional properties have been carried out on the starch extracted from these seeds. Indeed, the humidity rate, the percentage of amylose and amylopectin as well as the non-carbohydrate composition (proteins, lipids, ash) were evaluated. In addition to these parameters, the shape and size of the grains, the water absorption capacity, the clarity, the swelling and solubility power as well as the percentage of syneresis were investigated at -15 and 4 °C for 4 weeks. The results obtained indicate that the starch grains exhibited spherical shapes for some and polyhedral shapes with a smooth outline for others. Also, the average starch grain diameter was 10.30 µm. The rate of amyloidosis was 27.40% and 65.01% for amylopectin. The low humidity rate (6.72%) observed gave the starch long-lasting preservation. The non-carbohydrate composition for its part gave 0.87%. In addition, the in vitro digestibility study revealed that the starch of P. santalinoides was digestible. The recorded water absorption capacity was 117.34% with a percentage clarity that ranged from 5.84 to 0.62% transmittance in four weeks. The swelling ranged from 1.33 at 50 °C to 19.22 ge / gms at 90 °C. In contrast, the solubility was 0.50 at 50 °C and then intensified to reach 20.14% at 90 °C. These values for swelling and solubility reflect a possible use of this starch in food technology. The syneresis study indicated a value of 59.41% for storage at -15 °C compared to 52.72% at 4 °C. This study, which revealed interesting properties of the native starch of the seeds of P. santalinoides, thus suggests some areas of use of these seeds.

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Section: Discussionsupporting

confidence: 68%

Physicochemical and functional properties of native starch from seeds of Pterocarpus santalinoides

Etche¹,

Kouadio²,

Digbeu³

et al. 2022

World J. Bio. Pharm. Health Sci.

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“…Indeed, the pre-laying feed had a larger particle size than the grower feed, which could cause animals to look for the intermediate-sized particles they were used to while ejecting the larger particles into the litter. Another explanation would be the triggering of the sexual maturation process of these chickens, which occurs between 18 and 20 weeks of age for the chicken breed of the present study (Guisso Taffa et al, 2022a). Indeed, sexual maturity is a qualitative phenomenon requiring nutrients and energy (Larbier and Leclercq, 1992).…”

Section: Food Valorizationmentioning

confidence: 89%

Zootechnical Performance and Growth Curve Modelling of the Niamey Local Chickens in Niger

Taffa¹,

Issa²,

Hamani³

et al. 2023

WVJ

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The Niamey region in Niger depends on imports to meet its chicken meat needs. Although consumers appreciate local poultry products, they cannot fulfill their needs. The reluctance of modern producers to use local chickens on their farms is linked to a lack of knowledge of the production characteristics of local strains, which have been little studied. Thus, this study aimed to determine the growth profile of traditional chickens from villages in the Niamey region (Niger). In doing so, 100 local chicks whose parents were collected in the surrounding villages of the Niamey region were followed from hatching until the age of 140 days. The chickens were raised in cages with 10 per compartment of 3 m length and 1.5 m width. Food consumption was recorded daily, and weights were measured weekly. The parameters of the growth curves were obtained using the Gompertz equation. Female and male chickens had a significant weight difference at the third week of age. The mean weight of chicks at hatching was 24.90 ± 0.36 g. At the end of the follow-up, males, with a mean weight of 1523.05 ± 26.22 g were significantly heavier than females (1052.73 ± 14.04 g). Over the entire period of the experiment, the average daily gain and consumption indices were 9.5 g/d and 5.12, respectively. Asymptotic weights were 2096.78 g and 1313.26 g for males and females, respectively. The maturation factor of the Gompertz equation was higher in females (0.0196 g/d) than in males (0.0181 g/d), and the inflection age averaged 75 days for both sexes. In conclusion, Niamey local chickens are slow growing and have a high feed conversion ratio compared to the modern broiler or layer strains.

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Production et caractéristiques physico-chimiques des œufs de la poule locale de Niamey (Niger)

Cited by 2 publications

References 11 publications

Physicochemical and functional properties of native starch from seeds of Pterocarpus santalinoides

Physicochemical and functional properties of native starch from seeds of Pterocarpus santalinoides

Zootechnical Performance and Growth Curve Modelling of the Niamey Local Chickens in Niger

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