Adaption of horses to a novel dynamic feeding system : movement and behavioural responses

Reasons for performing study: Many domestic horses and ponies are sedentary and obese due to confinement to small paddocks and stables and a diet of infrequent, high-energy rations. Severe health consequences can be associated with this altered lifestyle. Objectives: The aims of this study were to investigate the ability of horses to learn to use a dynamic feeder system and determine the movement and behavioural responses of horses to the novel system. Methods: A dynamic feed station was developed to encourage horses to exercise in order to access ad libitum hay. Five pairs of horses (n = 10) were studied using a randomised crossover design with each pair studied in a control paddock containing a standard hay feeder and an experimental paddock containing the novel hay feeder. Horse movement was monitored by a global positioning system (GPS) and horses observed and their ability to learn to use the system and the behavioural responses to its use assessed. Results: With initial human intervention all horses used the novel feeder within 1 h. Some aggressive behaviour was observed between horses not well matched in dominance behaviour. The median distance walked by the horses was less (P = 0.002) during a 4 h period (117 [57–185] m) in the control paddock than in the experimental paddock (630 [509–719] m). Conclusions: The use of an automated feeding system promotes increased activity levels in horses housed in small paddocks, compared with a stationary feeder.

Effects of water movement and aeration system on the survival and growth of hatchery bred sugpo (Penaeus monodon Fabricius) in earthen nursery ponds

An experiment was conducted to determine the effects of water movement and airlift aeration on the survival and growth of P. monodon fry reared from P sub(4)P sub(5) to P sub(32)P sub(33) in earthen brackishwater ponds. The high survival rates obtained justify the need for aeration when using the earliest stages of fry (P sub(4)P sub(5)) at higher stocking densities. For older stages regardless of source and at lower stocking densities, nursery operations based on traditional methods could also achieve better survival rates.

Activities of the ECLAC system to promote and support technical cooperation among developing countries and regions during the 2002-2003 biennium: note by the Secretariat

Includes bibliography

Activities of the ECLAC system to promote and support South-South cooperation during the 2004-2005 biennium. Note by the Secretariat

Includes bibliography

Activities of the ECLAC system to promote and support South-South cooperation during the 2006-2007 biennium

Includes bibliography

Activities of the ECLAC system to promote and support South-South cooperation during the 2010-2011 biennium

Versión en inglés disponible en Biblioteca

Actividades del sistema de la CEPAL para promover y apoyar la cooperación entre países y regiones en desarrollo = Activities of the ECLAC system to promote and support co-operation among developing countries and regions

Da cuenta de las principales actividades operacionales realizadas por el sistema de la CEPAL desde el 21 periodo de sesiones de la Comision, especialmente en el marco de su resolucion 486(XXI): Cooperacion tecnica y economica entre paises y regiones en desarrollo.

Actividades del sistema de la CEPAL para promover y apoyar la cooperación técnica entre países y regiones en desarrollo = Activities of the ECLAC system to promote and support technical co-operation among developing countries and regions

Incluye Bibliografía