Gilberto Silber Schmidt1
1Pesquisador Embrapa Suínos e Aves
Os organismos vivos, quando submetidos à pressão de seleção natural ou artificial, apresentam alta capacidade de evoluir, atributo este que vêm sendo explorado com a finalidade de melhorar a capacidade produtiva e reprodutiva das espécies domesticadas. Os métodos convencionais (genética quantitativa e de populações) envolvidos no processo de melhoramento genético não têm, necessariamente, como base o conhecimento do gene e (ou) seu mecanismo de funcionamento envolvido na expressão da característica de interesse, portanto, pode resultar no favorecimento da expressão de genes com efeito secundários, que podem ter efeitos negativos para o setor produtivo, para o consumidor ou para o meio ambiente.
By Chris Harris
The PIG Site – Consumption of cooking oil is also expected to rise by 35 per cent while sugar consumption will go up by 52 per cent and consumption of dairy products will rise by 116 per cent.
The reason for the sharp change in eating habits is the change in the Chinese population to a wealthier more urban people, according to Sylvia Ren.
FAPESP – The aviation industry is committed to reducing its environmental impact and has established ambitious goals to reach carbon neutral growth by 2020 and to reduce carbon dioxide emissions by 50% (from 2005 levels) by 2050. Currently, the aviation industry generates approximately 2% of man-caused carbon dioxide emissions; it is a small but growing share that is projected to reach 3% by 2030.
By Michael Hill
MSN News – The orchards, part of the New York State Agricultural Experiment Station, are essentially a 50-acre lab devoted to developing apples that are tasty for consumers and hardy for farmers. The station has released 66 apple varieties over more than a century including Cortland, Macoun, and two new entries at farm markets this fall: SnapDragon and RubyFrost.
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The Poultry Site – This week’s news in the global poultry markets has included some significant developments in terms of the food safety risks from poultry meat.
One key area was whether changes to poultry meat inspection will improve global standards in terms of meat quality and food safety.
The question of the efficiency and efficacy of poultry meat inspection has been addressed on both sides of the Atlantic recently.
In the EU last year, the European Food Safety Authority (EFSA) published an opinion on the existing inspection procedures in poultry slaughterhouses and came to the conclusion that the simple visual inspection is not sufficient at a time when concerns over pathogens such as Salmonella and Campylobacter are rising.
The Korea Herald – Oceans that grow more acidic through Man‘s fossil fuel burning emissions, can amplify global warming by releasing less of a gas that helps shield Earth from radiation, a study said Sunday.
And the authors warned the potentially vast effect they uncovered is not currently factored into climate change projections.
Scientists say that Man’s carbon dioxide (CO2) emissions contribute to planetary warming by letting the Sun‘s heat through the atmosphere but trapping heat energy reflected back from Earth, so creating a greenhouse effect.
The Korea Herald – Crop-damaging insects, bacteria, fungus and viruses are moving poleward by nearly 3 kilometers each year, helped by global warming, a study said.
A team at Britain’s University of Exeter trawled through two huge databases to chart the latitude and dates for the earliest record of 612 crop pests.
Since 1960, these pests have been heading either northwards or southwards at a rate of around 2.7 kilometers yearly.