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Australian spray dried porcine plasma offers solutions to nutritionist and pig producers

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Spray dried plasma proteins are a relatively new feed ingredient available to Australian farmers. Sonac Australia (Darling Ingredients) is the only company in Australia currently producing spray dried plasma proteins from a range of species including pigs, cattle and sheep for domestic and export markets. The introduction of spray dried porcine plasma to the pig feed industry in Australia has been a huge nutritional and welfare advantage to the pig industry. Local research trials conducting across Australia in a range of settings (research & commercial) have delivered consistent improvements in performance and health. At generous inclusion rates (3-5%) spray dried porcine plasma when offered in well-balanced piglet diets can significantly enhance feed intake and aid in maintaining gut function, integrity and development (Edwards et al., 2012; Hernandez et al., 2010).

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Australian spray dried porcine plasma offers solutions to nutritionist and pig producers

  1. 1. S pray dried plasma proteins are a relatively new feed ingredient available to Australian farmers. Sonac Australia (Darling Ingredients) is the only company in Australia currently producing spray dried plasma proteins from a range of species including pigs, cattle and sheep for domestic and export markets. The introduction of spray dried porcine plasma to the pig feed industry in Australia has been a huge nutritional and welfare advantage to the pig industry. Local research trials conducting across Australia in a range of settings (research & commercial) have delivered consistent improvements in performance and health. At generous inclusion rates (3-5%) spray dried porcine plasma when offered in well-balanced piglet diets can significantly enhance feed intake and aid in maintaining gut function, integrity and development (Edwards et al., 2012; Hernandez et al., 2010). Digestive development in the immature pig is substrate driven so nutritional strategies, which enhance and maintain feed intake, benefit the newly weaned pig by limiting the negative consequences associated with commercial weaning practices. Interestingly, the benefits provide by plasma equally benefit light and heavy pigs (Hernandez et al., 2010), as well as equally benefiting the progeny of gilts and sows (Edwards et al 2010). Benefits reported from the use of spray dried plasma in Australian pigs include; improved weight gain, improved feed intake, improved feed conversion, improve protein metabolism, improved immunity, reduced mortality and reduced cost of production. A summary of the published studies using Australian produced spray dried porcine plasma is shown below in Table 1. To extract the full value out of spray dried porcine plasma in the diets of young pigs it is important that plasma is carefully formulated into balanced piglet diets. This includes formulating to all 10 essential amino acids and also ensuring the balance of the branch amino acids (valine, isoleucine and leucine) is appropriate to maximise feed intake. Some animal proteins including blood products have an excess of leucine relative to isoleucine. Blood products can be used generously in pig diets when the formulation ensures the balance between leucine and iso-leucine is met and that valine is not limiting (Kerr et al., 2004). With L-Isoleucine and L-valine now available in the feed industry nutritionist can use animal proteins and especially blood products generously with confidence. Sodium is another important nutrient to monitor when Table 1. Summary of published weaner trials done using Australian spray dried porcine plasma. Author Duration Pig details Inclusion rate Performance response Control Brewster et al., 2015 12 days 26 day old 8.9kg 2.5% SDPP ↑12.2% ADG Non-medicated Edwards et al., 2012 7 days 28 day old gilt progeny 6.68kg 28 day old sow progeny 8.07kg 5.0% SDPP 5.0% SDPP ↑50% ADG ↑20% ADFI ↑35% ADG ↑10% ADFI Medicated 400ppm CTC 400ppm tilmicosin Hernandez et al., 2010 7 days 21 day old light weaners 4.9kg 21 day old heavy weaners 6.9kg 5.0% SDPP 5.0% SDPP ↑112% ADG ↑42% ADFI ↓ 27% PUN ↑78% ADG ↑33% ADFI ↓27% PUN Non-medicated Australianspray driedporcine plasmaoffers solutionsto nutritionistandpig producers by, Dr Megan V Edwards, Animal Nutrition Consultant, ACE Livestock Consulting Pty Ltd, megan@acelive.com.au 52 | June 2016 - Milling and Grain F
  2. 2. formulating piglet diets which contain animal proteins. Diets need to be formulated to an appropriate sodium level (0.20- 0.50% sodium) as well as being formulated with an appropriate electrolyte balance (160-240 MeQ/kg). These balances can generally be achieved by using a combination of salt (sodium chloride) and sodium bicarbonate. Spray dried plasma products are relatively high in sodium (2.8-3.4%) compared to other protein meals, so it is important that the formulation considers sodium as a nutrient and appropriate minimum and maximum limits are applied. The optimal level of inclusion of spray dried porcine plasma will depend on a range of production factors including; weaning age, weaning weight, nursery facility quality, health status and climate. To benefit from the improved feed intake obtained from the use of spray dried porcine plasma it is recommended that the first diet post-weaning contain at least 4 percent spray dried porcine plasma. It is also recommended, where possible, to use a two phase step down program when using plasma. For example, if your first diet contains 5 percent spray dried porcine plasma it is preferable to have 2.0-2.5 percent spray dried porcine plasma in the second diet post-weaning to avoid any growth check associated with the withdrawal of plasma from the diet. Where possible it is best to use spray dried porcine plasma in non-medicated feeds. If medication is required it is best if it can be administered via the drinking water. Some medications appear to suppress the appetite stimulating mechanisms associated with the use of spray dried porcine plasma. The combined cost of both Milling and Grain - June 2016 | 53 F
  3. 3. plasma and medication and any suppress of appetite stimulation can negatively affect the economics of using such products. There does not appear to be any other feed ingredients that have an antagonist relationship with plasma. This is important as spray dried porcine plasma can be used as an effective delivery method to enhance the intake of other functional feed ingredients (e.g. nucleotides, beta-glucans, glutamine, probiotics etc) in the pig. The value of spray dried porcine plasma in the diets of weaner pigs needs to be assessed rather than the cost of the spray dried porcine plasma. New research suggests that the inclusion of spray dried porcine plasma in the diets of young pigs which are being vaccinated, can enhance the whole of life immunity and performance (Pujols et al., 2016). Advantages in nursery exit weights and numbers will only be capitalised on if good nutrition, housing and management are maintained throughout the life of the pig. The use of spray dried porcine plasma should not be viewed as a silver bullet and can not make up for shortfalls in poor nutrition, hygiene, health, management and housing. The use of spray dried porcine plasma also offers nutritionist an increased level of insurance as they move away from the use of in-feed antibiotics and therapeutic levels of zinc oxide (e.g. 2200ppm of Zn or 3kg/T of ZnO). Whilst the exact mode of action is not well understood the inclusion of spray dried porcine plasma appears to offer temporary immune protection, limiting the risk of post-weaning diarrohea and enhance the protein metabolism of the pig. This insurance also allows nutritionists to optimise formulations to effectively support the function of the digestive system and the piglets own ability to maintain a low gastric pH. The removal of feed ingredients like zinc oxide which have high acid binding capacities from the diet of newly weaned pig also delivers secondary benefits including the enhanced activity of acidifiers and pH sensitive enzymes including phytase. When applied well spray dried porcine plasma is appreciated by pig producers and their staff as they can visibly see the improvements in feed intake and appearance of the pigs. One Australian piggery manager made the comment that ‘it is a welfare issue not to feed plasma to pigs’. As the need for good nutrition evolves together with the challenges and opportunities out industry faces, there is a valid and important place for function feed ingredients, including spray dried porcine plasma in the diets of young pigs. The new research by Prof. Paul Iji out of the University of New England also suggests there are valid reasons (nutritional and economical) to include spray dried animal proteins in the diets of young poultry also (Beski et al., 2015). Improve bioavailability of nutrients & active ingredients Stimulation and support for the body‘s natural defences Binding and inactivation of pollutants & mycotoxins leibergmbh.de BALANCE IS EVERYTHING! Leiber brewers’ yeast products for: oduktanzeige Bierhefe 90 x 270 Rind Milling and Grain Türkisch 04/16.indd 1 09.05.16 10:54 54 | June 2016 - Milling and Grain F
  4. 4. Milling and Grain - June 2016 | 55 F

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