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Extensive beef cattle production in Portugal

Portugal, located in the Mediterranean region, one of the "Hot Spot" of the planet, has a huge variability in terms of topography, soils, climate, agriculture, traditions, resulting in a high diversity of animal genetic resources, represented by 15 native cattle breeds, most of them threatened. A significant percentage of extensive beef cattle production in Portugal is based on the use of animals, differing fro...

Estudo da flora, vegetação e paisagem vegetal da Serra da Arrábida

Livestock production systems management and stray dogs attacks in and nearby pr...

The incidence and the damage done by stray dog’s attacks in sheep have economical impact in Portugal. We pretend to identify livestock management conditions that help to prevent stray dog’s attacks.

Sheep production and stray dogs attacks in Beira Interior - Portugal

Livestock production in extensive systems (mainly with sheep) if faced with a high level of attacks/predation done by stray dogs, wolves and other carnivores. In the region, sheep predation by stray dogs is recognised; foxes and Egyptians mongooses also attack lambs. The incidente of attacks on livestock animals was evaluated in Beira Interior, Portugal, based on inquiries (n=156) with the last actualisation in...

Projecto 254 - Produção de suínos ao ar livre : unidade de demonstração Program...

A produção de suínos ao ar livre pode contribuir para a preservação e valorização das raças autóctones e dos produtos delas derivados, evitando assim a sua extinção. O projecto, Produção de suínos ao ar livre – Unidade de demonstração, cujo período de execução vai de setembro de 2004 a dezembro de 2006, tem como principal objectivo demonstrar a tecnologia de produção de leitões ao ar livre.

Controle de plantas daninhas através da palha de cana-de-açúcar associada à mis...

O objetivo deste trabalho foi avaliar os efeitos da palha de cana-de-açúcar resultante da colheita sem queima e da mistura comercial dos herbicidas trifloxysulfuron sodium + ametrina, na emergência e no acúmulo de biomassa seca de nove espécies de plantas daninhas. Os tratamentos foram distribuídos em esquema fatorial 3 x 3, sendo três quantidades de palha resultantes da colheita da cana-de-açúcar sem queima (0...

The reproductive effect of kidding : artificial insemination interval in goats

Goat production in Portugal, even for milk, is based on indigenous breeds in extensive systems. Reproduction is based in April/May mating, with the kidding period in September/October. Artificial Insemination (AI) is a fundamental tool to implement breeding schemes for those breeds, which never had any improvement scheme, other than done empirically by the owner/shepherd. Te goal is to identify the necessary in...

Thermal restraint and fire resistance of columns

A proposal is made, based on the results of a series of tests and calculations, with the aim of being used as a simple method to correct the value of the critical temperature of steel columns free to elongate, in order to take into account the restraint effect of the structure to which they belong in a practical situation. To better illustrate the possible types of behaviour of heated steel columns with elastic...

Is Merino wool disappearing in Portugal? Merino da Beira Baixa case

In Portugal, we are facing a fast decrease in the production of good quality wool. This situation can be seen from a qualitative and quantitative point of view by looking at the most extreme situation, which involves almost the extinction of a Merino breed – Merino Beira Baixa (MBB) – due to its inability to produce high milk quantities when subjected to the better handling of the more intensive productions sys...

Extensive livestock production systems in Portugal

Comunicação oral apresentada no I Workshop of the PASTORAL Project, que decorreu em Sotto del Real, Espanha. ; Neste trabalho são apresentados dados relativos aos sistemas extensivos de produção animal, em Portugal.