This followed 46,900 yarded in the last week of June.

Agent Colin Hood, from Christie and Hood, Dubbo said the recent volume rise in lamb and sheep sales had kept agents busy.

"The sheep and lamb markets have been strong, which has been very rewarding for our clients who are getting a good return," he said.

Local stock and station agent, Bill Tatt said it was a very productive day at the saleyards.

"The lamb market has been very strong when compared to the beef market," he said.

Mr Tatt said a combination of public holidays, wet weather and good prices have driven numbers up at the sale-yards.

"It has been terrific this time of year, numbers build due to rain, public holidays and good prices," he said.

Producers have been coming from all over, including Queensland, who want to sell in a major centre.

"Dubbo sale-yards have attracted big numbers which then attracts a very big field of buyers and through word of mouth the numbers keep expanding," Mr Tatt said.

There were good quality numbers of heavy weight and extra heavy weight lambs, with only a small percentage of lightweights throughout the penning.

Heavier weight lambs started cheaper, however as the sale progressed they finished $3 to $4 per head dearer.

Trade weight lambs were a firm $4 dearer yesterday than last week. The 18kg to 22kg new season lambs were selling between $95 to $138 per head.

Good quality hoggets (sheep between one and two years of age) sold for $120.

Merino lambs were $3 cheaper with trade weights selling between $86 to $132 per head and lightweight lambs were firm with 12kg to 18kg, two score, selling from $46 to $90 per head.

It was a mixed quality yarding of mutton, with merino ewes and wethers $2 to $4 dearer, while crossbred sheep were firm to $3 per head cheaper.

Meat and Livestock Australia (MLA) forecasts lamb exports to the United States, China and the Middle East to increase in 2014, making up 69 per cent of total exports.