Resolución 3: Establecimiento de un Grupo Mixto de Trabajo con la Organización de Alimentación y Agricultura = Resolution 3: Establishment of a Joint Working Party with the Food and Agriculture Organization = Résolution 3: Création d'un groupe mixte de travail avec l'Organisation pour l'Alimentation et l'Agriculture

El símbolo E/840/Rev.1 corresponde a la edición bilingüe inglés/francés publicada en 1953

Evaluación de la primera alimentación en larvas de capaz pimelodus grosskopfii bajo condiciones de laboratorio

Evaluate the performance and survival of capaz larvae Pimelodus grosskopfii after supplying live food (Cladocera, Copepod and Artemia Salina). Materials and methods. Capaz larva were placed in plastic containers with an useful volume of 3 L , and a larvae density of 10 L-1, they were fed four times a day during 15 days with newly hatched Artemia nauplii, Cladocerans of the genders Moina and Ceriodaphnia and Copepods calanoides. Capaz larva were weighed and measured at the beginning and the end of the experiment in order to evaluate their weight gain (WG), length gain (LG), specific growth rate (SGR), relative growth factor (RGF), and survival rate(S). Results. The treatment that showed the best results in WG, LG and S was the lot fed with Artemia nauplii (3.8±0.2 mg, 8±0.7 mm and 48.3% respectively), followed by sample supplied with Cladocera and Copepods. Conclusions. The Artemia nauplii treatment revealed the best results on the productive variables evaluated in P. grosskopfii larvae at the beginning of their exogenous feeding.

Política social en Colombia: 1975-1986

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Políticas sociales en el Uruguay 1975-1984, primera etapa: la reproducción biológica y social

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Formas de aplicación de zinc para las plantas de maíz que crecen en Oxisol: Efectos sobre el suelo, la nutrición de las plantas y la productividad

The way of applying zinc can influence the zinc uptake and productivity of crops, especially cereals that have high demand for this nutrient. The aim of this study is to evaluate methods of Zn application on soil, nutritional status and productivity of maize. For this, an experiment was undertaken at FCAV/UNESP, Jaboticabal-SP, in Oxisol clay (DTPA on Zn: 0.5 mg dm-3) with maize (hybrid Simple Impact), from December through May 2009. Nine treatments with three doses of Zn in soil banded application (in furrows) and three doses of Zn by incorporation in soil (0-20 cm depth), foliar application, seed application and control (no Zn). The treatments were arranged in a randomized block design with four replications. Regardless of the method, Zn application promoted higher contents of this micronutrient in soil and higher accumulation in the shoots as well as increasing Zn in the maize grain. However, it did not affect the nutritional status and yield of the maize. The Zn application in the soil resulted in a greater Zn uptake by plants and maize yield, compared to Zn application in the plant by seed or foliar.

Situación y evolución de la agricultura y la alimentación en América Latina = Situation and evolution of food and agriculture in Latin America

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La planificación para satisfacer las necesidades de los niños de América Latina en materia de alimentos y nutrición = Planning for the food and nutrition needs of children in Latin America

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Ecología nutricional del lactante y del niño en edad preescolar: problemas de nutrición en América Latina = The nutritional ecology of the infant and pre-school child: nutritional problems in Latin America

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Estudio general sobre los recursos naturales renovables para la alimentación y la agricultura en el Gran Caribe = Overview on the state of renewable natural resources for food and agriculture in the Wider Caribbean

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