Colour Doppler energy insonation of placental vasculature in monochorionic twins: absent arterio-arterial anastomoses in association with twin-to-twin transfusion syndrome

Objective To determine in vivo whether monochorionic pregnancies complicated by twin-to-twin transfusion syndrome are associated with absence of haemodynamically-compensatory arterio-arterial anastomoses

Effect of dietary phytase suplementation on the performance, bone densitometry, and phosphorus and nitrogen excretion of broilers

This experiment was carried out to evaluate the effects of the inclusion of different levels of phytase on broiler performance, bone densitometry, and phosphorus and nitrogen excretion. Nine hundred and sixty one-day old broilers, 50% males and 50% females, were distributed in a completely randomized experimental design into five treatments and six replicates 32 birds each. The treatments consisted of a control diet and four diets with the addition 25, 50, 75, and 100 g/ ton of phytase (250, 500, 750 and 1000 FTU of phytase/kg fed). Diets were formulated to contain equal nutritional levels, and considered the phytase product nutritional levels. In general, the addition of phytase resulted in a linear decrease in broiler performance. However, the performance results obtained with the level of 250 FTU phytase/kg feed were not different from the control treatment. The best bone density results were observed in the control treatment, with no phytase. The results of this experiment indicate that the nutritional matrix of the phytase product needs to be reviewed when added in levels higher 250 FTU/kg to broiler diets

Of Buffalo and Butchers: Coupling Traditional Procurement Studies with Taphonomic Analyses to Explore Intensive Wild Animal Processing Patterns at Two Early Iron Age Sites in the Kruger National Park

Located in northeastern South Africa in the Kruger National Park, the wilddominated faunal assemblages at Le6 and Le7 allow for a site-level examination of the treatment of wild species within the highly variable spectra of Early Iron Age animal use. Looking at hunting beyond pure subsistence choices, this paper couples traditional morphological analysis with taphonomic analysis and theoretical frameworks of intensification to ask new socially focussed zooarchaeological questions of these assemblages. Through this, both the procurement and processing methods utilized at Le6 and Le7 are identified and the significance of these choices is discussed. In so doing, the paper addresses possible specialization in both the hunting and the processing of large wild mammals. The socio-economic implications and potential drivers of these faunal choices are then considered within the broader context of the southern African Early Iron Age, and a potentially new faunal use strategy and site type are introduced.Les sites archéologiques Le6 et Le7 sont localisés dans le Parc National Kruger, au nord-est de l’Afrique du Sud. Les assemblages, qui sont dominés par des espèces sauvages, permettent une analyse intra-site du traitement spécifique des espèces sauvages au sein du large spectre des pratiques d’utilisation des ressources animales qui existent pour l’Age du Fer ancien. Dans cet article, la sphère cynégétique n’est pas abordée seulement sous l’angle des choix de subsistance. Il présente une approche plus large, qui recoupe les analyses morphologiques traditionnelles, les résultats taphonomiques ainsi que les cadres des théories d’intensification afin d’aborder des questions archéozoologiques novatrices, abordant l’aspect social des accumulateurs des ensembles fauniques. Ces méthodes d’analyse permettent d’identifier les stratégies d’acquisition et de traitement des ressources animales à Le6 et Le7 et de discuter l’importance des choix effectués. Parmi ces choix, nous discutons de la possibilité que les assemblages fauniques reflètent une spécialisation de la chasse et du traitement de grands mammifères sauvages. Les implications socio-économiques et les facteurs potentiels ayant mené à ces choix fauniques sont considérés dans le contexte de l’Age du Fer ancien d’Afrique australe. Enfin, sont introduits un nouveau type de stratégie d’utilisation des ressources animales et un nouveau type de site archéologique qui lui est associé.http://link.springer.com/journal/104372017-12-31hb2017Anthropology and Archaeolog