Всероссийский научно-исследовательский институт физиологии, биохимии и питания животных – филиал Федерального государственного бюджетного научного учреждения «Федеральный научный центр животноводства – ВИЖ имени академика Л.К. Эрнста»
ABSTRACT. Experiments were conducted on 118 crossbred pigs (Landrace×Large White), divided at the age of 10 d into 4 groups receiving basic diet (complete feed) during growing and fattening periods with different levels of feed acidifier (sodium diformate): up to 35 d age: group I (control ) − 0; II − 0.6%, III − 1.2% and IV − 1.8% of feed dry matter; during age period 35-45 d − 0.6, 0.9 and 1.2%; up to 60 d − 0.3, 0.6, 1.2% and during fattening − 0.2, 0.4, 0.8% respectively. At the end of the experiment, the body weights in groups II, III and IV were higher by 5.3 (P<0.05), 11.5 (P<0.01), 11.4% (P<0.01) with feed consumption per unit of LWG lower by 1.7%, 5.7, 3.7%, that of crude protein − by 2.3, 6.3, 4.0% and that of metabolizable energy − by 1.8, 5.8, 3.8% respectively vs control group. Nitrogen digestibility and assimilation of feed nitrogen, calcium and phosphorus in groups III and IV were the most. The diet of group III was optimal in dose of sodium diformate, which led to an increase in weight gain, compared with other groups. It is concluded that the use of feed acidifier sodium diformate does not have a negative effect on the metabolism and promotes the increase in growth performance and feed efficiency in growing and fattening pigs.
REFERENCES
1. Blank R., Mosenthin R., Sauer W. C., Huang S. Effect of fumaric acid and dietary buffering capacity on ileal and fecal amino acid digestibilities in early-weaned pigs. J. Anim. Sci. 1999, 77: 2974-2984.
2. Burrin D. G., Stoll B. Enhancing intestinal function to improve growth and efficiency. In: 9th International Symposium on Digestive Physiology in Pigs, Banff, AB, Canada, Volume. 2003, 1: 121-137.
3. Engovatov V., Shulaev G., Dobrynin V, Betin A. Svinovodstvo - Pig Breeding. 2008, 6: 27-28.
4. Fisinin V.I., Okolelova T.M. Zootekhniya - Zootechnics. 1989, 11: 35-38.
5. Grandberg I.I. Organicheskaya khimiya (Organic chemistry). Moscow: Vysshaya shkola Publ., 1980, P. 252-270.
6. Franco L. D., Fondevila M., Lobera M. B., Castrillo C. Effect of combinations of organic acids in weaned pig diets on microbial species of digestive tract contents and their response on digestibility. J. Anim. Physiol. Anim. Nutr. 2005, 89: 88-93.
7. Grandberg I.I. In: Organicheskaya khimiya (Organic chemistry). Moscow: Vysshaya shkola Publ., 1980, P. 252-270.
8. Kalashnikov A.P., Fisinin V.I., Shcheglov V.V., Kleimenov N.I., (Eds.). Normy I ratsiony dlya sel’skokhozyaistvennykh zhivotnykh (Feeding rationing and diets for farm animals, Eds). Мoscow: Аgropromizdat, 2003, 456 p.
9. Khudyakov A.A. Svinovodstvo - Pig Breeding. 2010, 6: 43-45.
10. Kirchgessner M., Roth, F. X. Ergotrope Effekte durch organische Sauren in der Ferkelaufzucht und Schweinemast. Übersichten zur Tierernährung, 1988, 6: 93-108.
11. Mroz Z., A. Jongbloed W., Partanen K. H., Vreman K., Kemme P. A., Kogut J. The effects of calcium benzoate in diets with or without organic acids on dietary buffering capacity, apparent digestibility, retention of nutrients, and manure characteristics in swine. J. Anim. Sci. 2000, 78: 2622-2632.
12. Mroz Z. Organic acids of various origin and physico-chemical forms as potential alternatives to antibiotic growth promoters for pigs. In: 9th International Symposium on Digestive Physiology in Pigs, Banff, AB, Canada, 2003, 267-293.
13. Partanen K., Mroz Z. Organic acids for performance enhancement in pig diets. Nutri. Res. Rev. 1999, 12: 117-145.
14. Partanen, K., Siljander-Rasi H., Alaviuhkola T., Suomi K., Fossi M. Performance of growing–finishing pigs fed medium- or high-fibre diets supplemented with avilamycin, formic acid or formic acid-sorbate blend. Livestock Prod. Sci. 2001, 73: 139-152.
15. Roth F.X., Kirchgessner M. Organic acids as feed additives for young pigs: Nutritional and gastrointestinal effects. Journal of Animal and Feed Sciences. 1998, 7: 25-33.
16. Savchenko S., Drozhzhachikh D. Svinovodstvo - Pig Breeding. 2003, 3: 14-16.
17. Shakirov Sh., Kuznetsov A., Malyshev I., Konchakova E. Svinovodstvo - Pig Breeding. 2005, 3: 29-31. Steiner T. Kombikorma - Mixed Feeds. 2007, 3: 95-96.
18. Steiner T. Kombikorma - Mixed Feeds. 2007, 3: 95-96.