Morphometric analysis of eggs laid by two ectotypes of snail &lt;i&gt; Archachatina marginata (Swainson) raised in captivity

Ibom, L. A.

doi:10.4314/gjass.v7i2.2371

Cited by 11 publications

(21 citation statements)

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“…These results are higher than the mean values of 1.61 mm and 1.43 mm reported by Ibom et al (2008) for black skinned and white skinned ectotypes of snails respectively. However, are lower than the mean values of 16.0 mm and 19.7 mm reported by Awesu (1980) and Amubode (1994) respectively for black skinned snails.…”

Section: Resultscontrasting

confidence: 75%

“…The mean clutch sizes obtained in this study were 6.50±0.57 (group I), 6.00±0.38 (group II) and 5.75±0.60 (group III). These values are higher than the mean value of 5.23 reported by Ibom et al (2008) for white skinned ectotype, but lower than the value of 7.8 reported by the same authors for black skinned ectotype. However, these results are lower than the values of 7, 8 and 8.5…”

Section: Resultscontrasting

confidence: 74%

“…The mean egg weights recorded were lower than the 3.0 g and 1.80 g reported by Amubode (1994) and Ibom et al (2008) for black skinned ectotype.…”

Section: Resultscontrasting

confidence: 73%

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Reproductive performance and EGG quality traits of crossbreeding between two strains of snails

2011

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Section: Resultscontrasting

confidence: 75%

Section: Resultscontrasting

confidence: 74%

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Reproductive performance and EGG quality traits of crossbreeding between two strains of snails

2011

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“…These differences in mean egg weights between the two snail breeds and their crosses were highly significant (P<0.01) only between the blackskinned purebred and the black-skinned x white-skinned crossbred. The mean egg weight values obtained in this study for the black-skinned and white-skinned purebred ectotypes were quite similar to the mean values of 1.80 g and 1.05 g obtained by Ibom et al (2008) for the black-skinned and white-skinned purebreds respectively, but lower than the mean values of 2.7 g (2.6-2.9 g) and 2.4 g (2.3-2.5 g) recorded by Okon et al (2009b) for the black-skinned and white-skinned purebreds of A. marginata in the same study area. On the other hand, Amubode (1994) obtained quite higher mean egg weights of 3.5 g and 3.0 g for A. marginata and A. achatina respectively.…”

Section: Egg and Hatchling Traitssupporting

confidence: 87%

Effects of Breed on Reproductive Efficiency of Two Most Popular Snails [Archachatina marginata (S) and Achatina achatina (L)] in Nigeria

Okon¹,

Ibom²,

Williams³

et al. 2012

JAS

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The effects of breed on the reproductive efficiency of the two most popular snail breeds [Archachatina marginata (S) and Achatina achatina (L)] in Nigeria were evaluated. Sixty snails each of the Archachatina marginata and the Achatina achatina breeds consisting of 30 black-skinned and 30 white-skinned ectotypes each of A. marginata and A. achatina were used. The snails were randomized into three mating groups; black-skinned x black-skinned (BS X BS), white-skinned x white-skinned (WS X WS) and black-skinned x white-skinned crossbred (BS X WS) and replicated five times in the randomized complete block design. Results of the study on mean egg traits revealed a highly significant (P<0.01) mean egg weight and mean egg length at lay between the black-skinned purebred and the black-skinned x white-skinned crossbred. The mean egg width also indicated highly significant (P<0.001) differences between the black-skinned purebreds of A. marginata and A. achatina. The variations in mean egg traits between the two breeds and the crosses of their ectotypes in this study may indicate variation in genetic composition of the snails. Results of hatchling traits evaluated showed that there also was a highly significant difference (P<0.001) in mean hatchling weights between the black-skinned purebreds of A. marginata and A. achatina. The hatchlings mean shell length results also showed significant differences (P<0.05) between the black-skinned purebreds and the crossbreds mating groups in the two breeds. The percent variability results indicated that high and low percent egg weight variability existed between the black-skinned purebred and the crossbred mating groups of the A. marginata and A. achatina at lay. There also was high and low percent variability for egg weight at hatch for the black-skinned purebred and the black-and white-skinned crossbred mating groups. The variability observed among the traits of hatchlings was due to genetic factors and could mean that their improvement will not be markedly influenced by the environment. The results of correlation among traits revealed positive and highly significant phenotypic correlation (r p ) within egg and hatchling traits for the two snail breeds studied. The correlation could suggest that there are direct relationships between the traits, and that selection for one trait will lead to improvement in the other trait. It is recommended that intensive domestication and massive production of A. marginata be embarked upon since it appears to have higher potentials to meet the animal protein supply of the populace than A. achatina. This is because of its larger size.

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“…Cela pourrait être justifié par le fait que les régimes végétaux étant pauvres en minéraux et en protéine, les escargots en consomment beaucoup plus pour chercher à satisfaire leurs besoins en nutriments notamment en protéine (Akinnusi, 2002;Ibom, 2008 ;Otchoumou et al, 2005). Le rendement écologique de croissance s'est amélioré avec la teneur en protéine du régime alimentaire.…”

Section: Discussionunclassified

Effet de la teneur en protéines alimentaires sur la croissance de l’escargot terrestre <i>Archachatina marginata</i> (Swainson, 1821)

Piba¹,

Karamoko²,

Adou³

et al. 2015

Int. J. Bio. Chem. Sci

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RÉSUMÉDeux cent vingt-cinq escargots Archachatina marginata, âgés d'environ trois jours, ont été soumis à deux régimes constitués de fourrages verts (R 1 et R 2 ) et trois régimes concentrés de farines (R 3 , R 4 et R 5 ) avec des teneurs en protéine variables [10,5% (R 3 ); 14% (R 4 ) et 17,5% (R 5 )], pendant 50 semaines d'élevage en milieu expérimental. Ce travail vise à étudier l'effet du régime et de la teneur en protéine brute alimentaire sur la croissance de l'escargot Archachatina marginata (Swainson, 1821) en captivité. Le régime R 1 est constitué de Lactuca sativa (Asteraceae), de Carica papaya (Caricaceae), Brassica oleracea (Brassicaceae), de Cecropia peltata (Moraceae), Laportea aestuans (Urticaceae) et de Phaulopsis falcisepala (Acanthaceae). Le régime R 2 , en plus des feuilles utilisées pour le régime R 1 , est additionné de feuilles de Leucena leucocephala (FabaceaeMimosoideae), une plante relativement riche en protéines. Les performances de croissances pondérale et coquillière ainsi que les taux de survie des escargots soumis aux régimes concentrés riches en protéine ont été nettement meilleures que ceux soumis aux régimes constitués de fourrages verts relativement pauvres en protéine. La croissance pondérale s'est améliorée avec l'augmentation de la teneur en protéine de l'aliment concentré. Ainsi, le meilleur poids vif final (216,27 g) est présenté par les escargots soumis au régime concentré R 5 (17,5% de protéine) et le plus faible (103,8 g) par le régime végétal R 1 (2,75% de protéine) sans L. leucocephala. Le régime végétal R 2 contenant les feuilles de L. leucocephala à un taux de 37,78% a causé le plus de mortalité. En revanche, Les escargots soumis aux régimes concentrés ont présenté les plus faibles taux de mortalité (6,67% pour R 3 ; 4,44% pour R 4 et 6,67% pour R 5 ). L'étude a montré que la protéine est un nutriment indispensable qui contribue à améliorer notablement la croissance de cet escargot. A un taux de 17,5%, les animaux ont présenté au bout de 50 semaines d'élevage, un poids vif moyen de 216,27 ± 9,28 g, une longueur moyenne coquillière de 12,14 ± 0,63 cm. Aussi, les feuilles de L. leucocephala fraîches causent-elles assez de mortalité chez les naissains et les juvéniles.

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Morphometric analysis of eggs laid by two ectotypes of snail <i> Archachatina marginata (Swainson) raised in captivity

Cited by 11 publications

References 0 publications

Reproductive performance and EGG quality traits of crossbreeding between two strains of snails

Reproductive performance and EGG quality traits of crossbreeding between two strains of snails

Effects of Breed on Reproductive Efficiency of Two Most Popular Snails [Archachatina marginata (S) and Achatina achatina (L)] in Nigeria

Effet de la teneur en protéines alimentaires sur la croissance de l’escargot terrestre <i>Archachatina marginata</i> (Swainson, 1821)

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