Improving Malagasy zebu production in the face of booming Malagasy population and regression of the animal number, this study was initiated to put forth some Malagasy zebu carcass weight performance and dressing perce...Improving Malagasy zebu production in the face of booming Malagasy population and regression of the animal number, this study was initiated to put forth some Malagasy zebu carcass weight performance and dressing percentages following slaughter. Measurements concerned live weight before slaughtering, carcass weights, quarters and carcass halves, left and right and the fiffla quarter （blood, leather, intestine, lung, heart, liver, kidneys, spleen and rumen with its content） weights on 544 individuals without distinction （age nor sex）. Descriptive statistical analysis was undertaken to qualify and compare the various weights. It results high proportion females （66%）, smaller size （live weight less than 250 kg, 60%） and 5 live weight classes. Live weight was different in the 2 sexes starting class 3 （live weight 〉 250 kg） （p = 0.0027）. Males fore quarters were heavier than females （p 〈 1‰）. Carcass dressing percentage increased according to live weight class, whereas, 5th quarter yield presented a regressive reduction with increasing weight class. Survey shows an average dressing percentage of 46.20% with an average 5th quarter yield of 37.43%. Malagasy zebus are light weighted animals compared to the African zebus. Precocious slaughtering （before 250 kg live weight） doesn＇t allow a good meat yield.展开更多
Considering the WHO warning about the emergence of a’post-antibiotic’era during the 21st century in which common infections and minor injuries will have a dramatic impact on human death toll,search for new potential...Considering the WHO warning about the emergence of a’post-antibiotic’era during the 21st century in which common infections and minor injuries will have a dramatic impact on human death toll,search for new potential antibacterial drug targets became a necessary need.Targets that are extensively explored concern the modulation展开更多
Madagascar becomes a large isolated island after its dislocation from East Africa at its western part during the opening of the Mozambique Channel and its separation from India at its eastern part during the opening o...Madagascar becomes a large isolated island after its dislocation from East Africa at its western part during the opening of the Mozambique Channel and its separation from India at its eastern part during the opening of the basin of the Mascarene. From a stratigraphic point of view, Karroo of Madagascar shares substantial similarities with the stratigraphic strata of East Africa.While oil companies have taken a liking to the basins of East Africa, they also turn to the basins in the western part of Madagascar especially after the discovery of large oil fields at Tsimiroro and Bemolanga. According to the study of their geological history, the basins of Madagascar contain huge hydrocarbon potential. The western basins, which is more developed than the east coast of the island, have been the subject of many in-depth studies by numerous researchers. The cross-referencing of bibliographic data with geological studies, and knowledge of hydrocarbon formation and maturation stages, carried out in this study served to determine the nature of source rocks, reservoir rocks, bedrock and eventual trapping system of hydrocarbons in Madagascar. This study identified the properties of Madagascar source rocks, reservoir rocks, bedrock and the final oil and gas trap system by cross-referencing the literature and geological research, oil and gas formation and maturity stages, and shows that Madagascar has considerable hydrocarbon potential.展开更多
With 213,000 ha of remaining mangroves in 2016, Madagascar has about 4260 ha of mangrove on its Eastern coast. The purpose of this article is to provide essential data on the spatial distribution of this ecosystem of ...With 213,000 ha of remaining mangroves in 2016, Madagascar has about 4260 ha of mangrove on its Eastern coast. The purpose of this article is to provide essential data on the spatial distribution of this ecosystem of Eastern Madagascar, its ecological potentials and the pressures on its resources. Five Eastern Mangrove sites were selected, from South to North, because of their accessibility and their spatial position: Foulpointe, Sainte Marie, Manompana, Mananara Nord and Rigny. Eastern mangroves regenerate quite well, with a regeneration rate of over 500%. Their height and basal area range respectively between 1.7 - 12 m and 7 - 42 m2·ha-1. The aboveground biomass perfacies can go up to 47 t·ha-1, or even more, at the level of the large homogeneous mangrove of Mananara and Rigny (>70 t·ha-1), whereas this one does not exceed 10 - 20 t·ha-1 in the sporadic mangroves of Foulpointe and Manompana. The carbon sequestration capacity of the aboveground biomass is estimated at more than 5 - 20 t·ha-1, along a South-North gradient, equivalent to a minimum sequestration potential of 21,300 to 85,200 t for the whole East. Despite these ecological potentials and the low annual clearance rates observed for some sites, this ecosystem is subject to anthropogenic pressures linked to urbanization, timber harvesting and irrational exploitation of fishery resources.展开更多
文摘Improving Malagasy zebu production in the face of booming Malagasy population and regression of the animal number, this study was initiated to put forth some Malagasy zebu carcass weight performance and dressing percentages following slaughter. Measurements concerned live weight before slaughtering, carcass weights, quarters and carcass halves, left and right and the fiffla quarter （blood, leather, intestine, lung, heart, liver, kidneys, spleen and rumen with its content） weights on 544 individuals without distinction （age nor sex）. Descriptive statistical analysis was undertaken to qualify and compare the various weights. It results high proportion females （66%）, smaller size （live weight less than 250 kg, 60%） and 5 live weight classes. Live weight was different in the 2 sexes starting class 3 （live weight 〉 250 kg） （p = 0.0027）. Males fore quarters were heavier than females （p 〈 1‰）. Carcass dressing percentage increased according to live weight class, whereas, 5th quarter yield presented a regressive reduction with increasing weight class. Survey shows an average dressing percentage of 46.20% with an average 5th quarter yield of 37.43%. Malagasy zebus are light weighted animals compared to the African zebus. Precocious slaughtering （before 250 kg live weight） doesn＇t allow a good meat yield.
文摘Considering the WHO warning about the emergence of a’post-antibiotic’era during the 21st century in which common infections and minor injuries will have a dramatic impact on human death toll,search for new potential antibacterial drug targets became a necessary need.Targets that are extensively explored concern the modulation
文摘Madagascar becomes a large isolated island after its dislocation from East Africa at its western part during the opening of the Mozambique Channel and its separation from India at its eastern part during the opening of the basin of the Mascarene. From a stratigraphic point of view, Karroo of Madagascar shares substantial similarities with the stratigraphic strata of East Africa.While oil companies have taken a liking to the basins of East Africa, they also turn to the basins in the western part of Madagascar especially after the discovery of large oil fields at Tsimiroro and Bemolanga. According to the study of their geological history, the basins of Madagascar contain huge hydrocarbon potential. The western basins, which is more developed than the east coast of the island, have been the subject of many in-depth studies by numerous researchers. The cross-referencing of bibliographic data with geological studies, and knowledge of hydrocarbon formation and maturation stages, carried out in this study served to determine the nature of source rocks, reservoir rocks, bedrock and eventual trapping system of hydrocarbons in Madagascar. This study identified the properties of Madagascar source rocks, reservoir rocks, bedrock and the final oil and gas trap system by cross-referencing the literature and geological research, oil and gas formation and maturity stages, and shows that Madagascar has considerable hydrocarbon potential.
文摘With 213,000 ha of remaining mangroves in 2016, Madagascar has about 4260 ha of mangrove on its Eastern coast. The purpose of this article is to provide essential data on the spatial distribution of this ecosystem of Eastern Madagascar, its ecological potentials and the pressures on its resources. Five Eastern Mangrove sites were selected, from South to North, because of their accessibility and their spatial position: Foulpointe, Sainte Marie, Manompana, Mananara Nord and Rigny. Eastern mangroves regenerate quite well, with a regeneration rate of over 500%. Their height and basal area range respectively between 1.7 - 12 m and 7 - 42 m2·ha-1. The aboveground biomass perfacies can go up to 47 t·ha-1, or even more, at the level of the large homogeneous mangrove of Mananara and Rigny (>70 t·ha-1), whereas this one does not exceed 10 - 20 t·ha-1 in the sporadic mangroves of Foulpointe and Manompana. The carbon sequestration capacity of the aboveground biomass is estimated at more than 5 - 20 t·ha-1, along a South-North gradient, equivalent to a minimum sequestration potential of 21,300 to 85,200 t for the whole East. Despite these ecological potentials and the low annual clearance rates observed for some sites, this ecosystem is subject to anthropogenic pressures linked to urbanization, timber harvesting and irrational exploitation of fishery resources.
