Farming Monthly National June 2016 | Page 31

| Livestock Slurry revolution Rumen function priority Tramspread, the digestate and slurry handling specialists will be displaying a cross section of their range on stand number M594 at this year’s Livestock Event, including the Reck slatted floor mixer which revolutionises the management of slurry in under floor stores and channels. Faced with continuing low milk prices, dairy producers looking to boost margins by maximising milk from forage, reducing feed costs and minimising the post-turnout drop in milk quality are being urged to make rumen function a top priority this spring and summer. he folding impeller is simply lowered by a winch on the frame to fit through a floor slat and is then able to homogenise the slurry below without the need to lift out a concrete section. The mixing action can be further improved by specifying the optional ‘swing device’ which allows the frame to tilt the impeller to either side, enlarging the area to be mixed and so reducing the amount of times the mixer needs to be moved to cover an area. For an almost dry crust the water supply option is recommended as water runs through the mixer sword directly to the folding propeller and creates a free-flowing slurry. These mixers are available for cow sheds and pig sheds in either electric or hydraulic options, and in various sizes to suit any under floor store. For information on the extensive range of Reck mixers, and ptimising the efficiency with which forage is converted into milk has a massive impact on dairy unit profitability, and it starts with good rumen function,” states Dr Derek McIlmolye, AB Vista’s Technical Director for GB and Ireland. “The challenge following turnout is the poor fibre content in spring grass significantly increases the risk of low rumen pH, which compromises fermentation efficiency. Up to 16 litres of oxygen can also be mixed in with the feed consumed each day, which introduces aerobic conditions that are less than ideal.” Any time rumen content drops below pH 5.8, or oxygen is introduced, the activity and numbers of the fibre-digesting microbes in the rumen are reduced. Optimising rumen T O Sees us at Livestock Event 2016 Stand No: LE538 anything else in the TRAMSPREAD range from slurry test kits up to 7000m3 slurry stores, call in to their stand and speak to their knowledgeable and experienced personnel. conditions to best support these microbes is therefore critical to efficient forage fermentation. “Correctly formulated buffer feeds are essential to reduce the risk of SARA at turnout, including the addition of a live yeast like Vistacell,” Dr McIlmoyle continues. “These metabolically active yeasts not only limit production of the lactic acid responsible for lowering rumen pH, but they also help maintain anaerobic conditions by absorbing oxygen in the rumen. “Typical daily yield response can be as high as 2 litres/cow if the rumen is under severe pressure, such as following spring turnout, coupled with an improvement in butterfats due to improved fibre digestion. That’s a significant gain in feed efficiency and milk from forage that will typically provide a return on investment of between 3:1 and 6:1 based on either a one or two litres increase in daily milk yield.” www.farmingmonthly.co.uk June 2016 | Farming Monthly | 31