The top headlines on just-food had a meaty flavour this week, with news of Cargill's local merger with Australian beef processor Teys Bros, Tyson Foods' half-year numbers and a look at how the UK and US food industries are dealing with concerns over animal welfare. We also reported on how Beijing is looking to introduce additive regulations in the wake of a contaminated pork scandal. Elsewhere, Sainsbury's issued its annual results and we took a look at the speculation around Tesco's loss-making venture in the US. Click on the headlines for more.

In the spotlight: Sainsbury's faces margin worries
Sainsbury's heralded its annual results yesterday (11 May) with claims that it "outperformed the market". In some quarters of the City, however, concerns remain that the UK's third-largest retailer, facing fierce competition and a weak consumer, is feeling pressure on its margins.

BRAZIL: Fonterra set to build dairy farm
Fonterra is set to develop a pilot dairy farm in Brazil to support its South American venture with Nestle, Dairy Partners Americas.

CHINA: Beijing to bring in additive regulations
China's health ministry has announced that new national safety and technical definition standards for food additives will be released by the end of 2011.

US/AUS: Cargill, Teys merge Australian beef businesses
US food giant Cargill has merged its Australian beef business with Teys Bros., the country's second-largest beef processor.

EU: Russia, Argentina could lose duty concessions
Russia, Argentina and Uruguay are among almost 100 countries expected to lose tariff breaks for their food exports to the EU under planned reform of the bloc's Generalised System of Preferences (GSP) system.

Collaborative approach sets UK apart on animal welfare
Animal welfare is becoming an increasingly important issue for consumers both in the UK and the US. However, Ben Cooper writes, while progress in the UK has been underpinned by collaboration between industry and NGOs, the same spirit of cooperation has so far been largely lacking on the other side of the Atlantic.

On the money: We are ahead of the pack, says Tyson
Tyson Foods management has insisted that the food group's business model is ahead of its peers in the protein market, meaning that it is well-positioned to deal with rising feed costs.

Talking shop: Has Tesco been "foolhardy" in the US?
Speculation is mounting over the future of Tesco's operations in the US. Investor Warren Buffett has described the venture as "foolhardy", while some industry watchers believe potential Californian restrictions on the sale of alcohol could be a hammer blow for business. Why has Fresh & Easy struggled so much in the US, and how likely is it that the loss-making venture will turn a profit? Petah Marian investigates.

IRELAND: Aldi, Lidl gain share in Ireland - Kantar
Discount retailers Aldi and Lidl are gaining market share in Ireland, according to the latest figures from analysts at Kantar Worldpanel.

US: Dean Foods shares jump on raised earnings forecast
Shares in Dean Foods jumped today (10 May) after the US dairy giant raised its full-year earnings target despite a fall in first-quarter profits.