SOUTH CANTERBURY FARMING FOR PROFIT NEWSLETTER | NOVEMBER 5 2015 FARMING FOR PROFIT — TOPICS & SPEAKERS — Getting the best out of your sheep Paul Kenyon, Massey University Senior Lecturer Creep grazing Ross Brown, Farmer NOVEMBER 5 2015 SOUTH CANTERBURY Faster growing lambs for better returns Faster growing lambs in spring and early summer for better returns was the focus of an excellent Farming for Profit field day held at Evan and Clare Chapman’s property, Rockburn Farm, near Geraldine. A good crowd of about 70 came along to tour the farm and hear from Professor Paul Kenyon (Professor of Sheep Husbandry at Massey University) speaking about growing and finishing lambs and cattle. Health and safety from a farmer perspective Mark Adams — CONTACT— Facilitators Jacqui and Richard Robinson 03 6939077 [email protected] Extension Manager Angela Stead 03 686 9877 or 027 801 4758 [email protected] 0800 BEEFLAMB (0800 233 352) | WWW.BEEFLAMBNZ.COM | BY FARMERS. FOR FARMERS 1 SOUTH CANTERBURY FARMING FOR PROFIT NEWSLETTER | NOVEMBER 5 2015 Evan (left) and Angus (centre) Chapman explain their bull finishing system. The 24ha area was developed by Angus 20 years ago and is now sown in 6 different ryegrass varieties. One in each lane. Rockburn Farm (540ha—397 cultivated and 510 effective) has been farmed by the Chapman family for a number of generations, and we were able to observe some of the improvements that have happened. The Kakahu irrigation scheme from Lake Opuha has enabled intensification of the flat area with a centre pivot covering 42ha. It also supplies K-Line irrigation to another 110ha on the lower rolling country. 3000 ewes produce about 150% lambing with lambs finished to 17.5kg c/wt. They finish a mix of beef-bred and Friesian cattle (mostly bulls), aiming to finish 240/ year with a kill weight of >300kg. The farm has a dryland beef finishing area (technosystem) where the cattle are divided into small groups and shifted every two days. The farm is mostly ryegrass based although there is some use of specialist lamb finishing mixes, notably a chicory/plantain/red and white clover mix. Evan has found this to be very successful although he also values the ease of management and year round production of ryegrass. Having a rotation that enables a significant area of finishing crops while still allowing enough area for lambing ewes in early spring can be difficult. This year the rainfall has been substantially below the expected annual rainfall and comes straight after a challenging time last year, when the Opuha Irrigation scheme was not able to deliver any water at all for a large part of the summer. This put a lot of pressure on the farm and resulted in some stock not being finished to their expected weights. Evan notes that this spring already seems to be drier than it was at the same time last year! Getting the best out of your sheep Professor Paul Kenyon is the current head of the institute of Veterinary, Animal and Biomedical Sciences at Massey University. He is also the Professor of Sheep Husbandry. The research he undertakes is aimed at improving on-farm productivity and profitability. He has led or co-led more than 100 sheep research studies in the last 10 years in New Zealand and he came to Kakahu to talk on how to target and achieve good lamb and cattle growth rates in spring and early summer. Paul began by giving a brief refresher on some basic principles of lamb growth to achieve high performance: • Do not restrict intake • Maximise bite size • Allow the animal the ability to choose • Ensure herbage is of high quality. This will allow heavier lambs at weaning which generally display greater lifetime performance as well as being a more efficient system with less feed required in total. The feed saved will then give options for the farmer in terms of more feed to maintain the capital stock or to finish more stock. There are some important principles that need to be considered to achieve this high performance: • Sheep need to be offered pasture of at least 1200kgDM/ha but any greater than 1800kgDM/ha doesn’t result in any greater intake or growth rate • Ideally, ewes need to be in BCS of 3.0/3.5 to get rear lambs to their potential (he observes that farmers seem to be reluctant to put their hand on sheep to assess BCS) • Sheep farmers are dairy farmers because they need to focus on maximising the daily milk yield early in the lactation of the ewe. Paul then used this information to discuss the recent research that some of his team have been doing around the use of herb and clover mixes in sheep systems. 0800 BEEFLAMB (0800 233 352) | WWW.BEEFLAMBNZ.COM | BY FARMERS. FOR FARMERS 2 SOUTH CANTERBURY FARMING FOR PROFIT NEWSLETTER | NOVEMBER 5 2015 They knew that different feeds have different growth rate responses and that these are largely a factor of feed quality, but they have found that offering a feed choice to the lamb results in better performance than when offered no choice. This is shown in the graph comparing leaf turnips with a herb/clover mix that has similar average growth rates for each mob but a much tighter spread. There will be fewer tail end lambs when grazed on the herb mix. ewe flock. This can mean that mating hoggets is not profitable if their live-weight targets cannot be met. The post Weaning growth rates of lambs in New Zealand on average are pretty low. A weaned lamb at 28kg late December and killed at 38kg mid-march has only averaged 100g/day. Generally this is an effect of not enough good quality feed being offered. Early weaning (at 19–20kg) can be successful if high quality “rocket fuel” herb/clover mixes are available to wean onto. This can result in better growth rates than the lamb would have achieved if it was unweaned on a poorer quality pasture, as it is effectively competing with its mother for that pasture. Another benefit is that the ewes that are to be retained after weaning are not further dragged down by producing milk for the lamb. Extra condition is not needed to be put back onto her before mating in the autumn. 1 BCS is equivalent to 7–8kg and so a ewe that is BCS 2.5 would need to grow at 75g/day from weaning, to be back at BCS 3.5 in time for mating. The better ewe performance and positive effects on the weaned lambs is even more important when hogget mating is considered, as any underfeeding will result in lambing difficulties, ewes that have not been grown out to their potential and probably less longevity in the To achieve their potential growth rate, lambs must be offered lots of easily harvested, good quality feed. Management of herb/ clover mixes to grow quickly and persist is the same management that is required for the lambs to grow at their maximum. 0800 BEEFLAMB (0800 233 352) | WWW.BEEFLAMBNZ.COM | BY FARMERS. FOR FARMERS 3 SOUTH CANTERBURY FARMING FOR PROFIT NEWSLETTER | NOVEMBER 5 2015 Fast cattle finishing is just as dependant on lots of good quality feed being offered. In Spring/summer: • • Keep pastures between 1400–1600 and 2500– 2800kg DM/ha for high performance in young cattle –– Pre grazing controls pasture quality –– Post grazing controls animal intake If possible, increasing post grazing residuals (closer to 2000kg DM/ha) and decreasing pre grazing levels allows even better growth. This is dependent on having another stock class that is able to “cleanup” behind the finishing cattle to maintain the quality of the sward. Recent research at Massey has shown some excellent benefits from offering young growing cattle a chicory/ plantain/clover pasture mix. Creep grazing Ross Brown farms near Fairlie and several years ago spoke to the South Canterbury Farming For Profit group about his experiences using creep grazing to achieve faster lamb growth rates pre-weaning. He came to this field day and gave an update of his recent results with creep grazing. It has certainly been successful for Ross. He weans his lambs at an average of 34.2kg at 93 days and that is from a lambing of 150%! The benefits he sees are that the lamb has an ability to select what it eats without the competition from the ewes. Ross also notices that the pastures that are creep grazed have better pasture quality. It takes very little training of the lambs but they are often offered a mineral lick to encourage them through the specially adapted creep grazing gate. It definitely achieves better growth rates in the lambs and this is shown when he compares the weaning weight of similar mobs on similar paddocks that have not had access to creep grazing. Ross was questioned whether it made the lambs “pokey” and inclined to push through fences. Ross replied that they didn’t seem to put any more pressure on the fences but were very quick to notice any gate that had not been secured well enough and would quickly escape. As he doesn’t have a large number of ewes, he doesn’t keep any replacements and all his lambs are bred to terminal sires. He agreed that this also contributed to his good weaning weights. The ewes which are with the creep grazing lambs all tend to be 2–3kg lighter than the ewes with lambs which aren’t creep grazed. Ross considers that this is in line with Professor Kenyon’s comment of the ewe and the lamb being in competition later in the lactation. Paul finished with a summary of the best management of plantain/chicory herb clover mixes for production and persistence. • Don’t graze below 8cm • Spelling between 8–15cm allows taproot recovery • Introduce stock between 15–30cm • Introduce slowly • Set stock for lambing and then start rotating post tailing • Be careful with stocking rates—you do not want to have to remove ewes in peak lactation • Ewes and lambs can be introduced post lambing. Sward sticks which have been calibrated to be used for this pasture mix are available from Beef + Lamb New Zealand, or Massey University. Some will be available at future Farming for Profit field days held in the South Canterbury region. The gate has every second steel upright cut out of it. Ross no longer strengthens the gates with a wooden bar, now preferring to weld a piece of flat steel to every upright along the same position as the wooden rail in the photo. The gates are commercially available. 0800 BEEFLAMB (0800 233 352) | WWW.BEEFLAMBNZ.COM | BY FARMERS. FOR FARMERS 4 SOUTH CANTERBURY FARMING FOR PROFIT NEWSLETTER | NOVEMBER 5 2015 Health and safety from a farmers perspective Mark Adams is the President of South Canterbury Federated farmers and a member of our Farming For Profit farmer committee. Recently he invited a WorkSafe advisor to come onto his property to look at his farm Health & Safety Plan. He shared his take on the Health and Safety challenges facing farmers. Mark started by explaining there are a number of levels that this topic is being debated at. In Wellington Fed Farmers and Beef+Lamb NZ are working to ensure that prescriptive rules aren’t what drive Health and Safety on farms, he believes that farmers’ integrity and buy in is what will make the difference. “If it is just compliance based we will all tick as many of the boxes we need to, to have it just go away.” Mark sees four clear reasons for us all to be engaged in this space: 1. There is a perceived urban rural divide. To ensure that farms are seen as good places for young people to seek employment, we need to ensure we are as safe as we can be Mark said that WorkSafe NZ are in an educational phase at the moment and are willing to work with farmers to develop plans and systems that suit their particular farm. In Mark’s case the worker was interested in his attitude and his thoughts about H&S on his property. Some prior reading of a Federated Farmers H&S manual ($80.00 and 40 minutes) with some farm specific notes in the margins, as well as a farm map identifying hazards, were well received. Marks final comment was that most of us have this stuff in our heads and it is simple stuff. Having a plan and being consciously aware is much more likely to stand scrutiny if something does go wrong on your property. There are no excuses, and it could be that the paperwork stands between you and the judge. He sees real benefits in the conversation with the Worksafe employee and believes we need to “lock in our rights to not have Wellington set rules for us by bringing the stats down” 2. Like any sports team, you look after your mates. Small businesses are similar to a team….we need to look after each other 3. Many farmers don’t employ people; they are owner operators and often employ contractors at critical times. Mark commented on how much organisation, time and planning is required for him to be able to get away on holiday for a week or two, and that’s with time to plan! Imagine how much more difficult it is if you are suddenly incapacitated because of an accident 4. We can’t trust the judicial process. In Mark’s opinion some of the penalties handed out to farmers are out of all proportion. No farmer has calculatedly planned an accident but in some cases have been treated worse that criminals who consciously do harm. The Courts are using farmers to set an example…don’t let it be you. Facilitators Extension Manager Jacqui and Richard Robinson 03 6939077 [email protected] Angela Stead 03 686 9877 or 027 801 4758 [email protected] 0800 BEEFLAMB (0800 233 352) | WWW.BEEFLAMBNZ.COM | BY FARMERS. FOR FARMERS 5
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