This review examines some aspects of pig breeding schemes which affect their economic efficiency. These include the type of crossbreeding system, the selection applied within the lines, the importance of starting up relatively quickly, of maintaining efficient production within the breeding herds and of...
This review examines some aspects of pig breeding schemes which affect their economic efficiency. These include the type of crossbreeding system, the selection applied within the lines, the importance of starting up relatively quickly, o... M Bichard - 《Livestock Production Science》 被引量: 22...
The study attempts to investigate the socio-economic and technical characteristics of pig producers and their husbandry practices in the urban and peri-urban zones of Dschang-West region of Cameroon. 114 pig farmers were randomly selected from the zone and interviewed. A structural questionnaire was...
When attempting to assess welfare and economic attributes of systems, there are certain caveats that require discussion, in particular weighting of the contribution of different design attributes to pig welfare, the relative importance of the sow and her piglets and the many potential confounding ...
a你应该做的最重要的事情就是少吃,多锻炼 You should do the matter of primary importance is little eats, multi-exercises[translate] a大量发扎公共交通 Sends massively grips the mass transit[translate] a不要在走廊里大声喧哗 Do not clamor loudly in the corridor[translate] ...
The male excess risk of premature ischemic heart disease (IHD) mortality may be partially due to an unknown macro-environmental influence associated with economic development. We examined whether excess male risk of IHD mortality was higher with birth in
aIllustrate its importance with an example? Write a short paragraph about the importance of word of mouth. 说明它的重要性以例子? 写短的段关于口头表达的重要性。[translate] aAs a result vibrant designs and true to life visuals can be printed in high level photographic resolutions. All desired ...
This report also stressed the importance of volunteer work, estimated at 7.5 million hours to support the preparation of the State of Nature report. The authors concluded that “although financial investment is crucial, as are government policy and legislation,….the most successful conservation ...
Brobbey LK, Hansen CP, Kyereh B, Pouliot M (2019a) The economic importance of charcoal to rural livelihoods: evidence from a key charcoal-producing area in Ghana. For Policy Econ 101:19–31. https://doi.org/10.1016/j.forpol.2019.01.013 Article Google Scholar Brobbey LK, Pouliot M, ...
food types such as beef and poultry rise, while prices for maize and soybean used in feed decline. There is a slight decline in average per capita calorie availability in China, indicating the importance of assuring the dietary needs of low-income populations. Outside China, projections for cal...