Abstract
Digestibility of nutrients in pig diet is affected by many factors, including feed additives used. One of these additives may be alfalfa protein concentrate (APC). The aim of this study was to determine the effect of APC in feeding sows (pregnancy and lactation) and rearing piglets (up to 84 days) on the total tract digestibility of basic nutrients and detergent fiber fractions (NDF and ADF). Two digestibility trials were conducted on the Polish Landrace breed and their piglets. In experiment I, two levels of APC additive (1.5% and 3%) were tested, during pregnancy, lactation and piglet rearing. In experiment II 3.0 % addition of APC was used in mixtures for sows only during pregnancy or during lactation, while for piglets the amount of APC in the prestarter and starter mixtures was at the same level (3%). The use of 3% APC in mixtures for sows in the lactation period makes it possible to receive better digestibility of crude protein, ether extract and NDF(p ≤ 0.05). In groups of piglets in the second week after weaning, there were no significant differences between digestibility of nutrients, including fiber and its fractions (NDF, ADF). In older pigs (78–83 days) the addition of 3% of APC contributed to a higher value of the total tract apparent digestibility coefficients for crude protein and ether extract (p ≤ 0.05).
References
AOAC, 2012. Official methods of analysis of AOAC International. 19th ed., G.W. Latimer (ed.), Gaithersburg, Maryland.
Chen L., Gao L-X., Zhang H-F., 2014. Effect of graded levels of fiber from alfalfa meal on nutrient digestibility and flow of fattening pig. J. Integr. Agric. 13(8), 1746–1752.
De Lange C.F.M., Pluske J., Gong J., Nyachoti C.M., 2010. Strategic use of feed ingredients and feed additives to stimulate gut healthand development in young pigs. Live. Sci. 134, 124–134.
EFSA, 2009. Opinion on the safety of “Alfalfa protein concentrate” as food. EFSA J. 997, 1–19.
Grela E.R., Pietrzak K., 2014. Production technology, chemical composition and use of alfalfa protein-xanthophyll concentrate as dietary supplement. J. Food. Process. Technol. 5(10), 373–377.
Grela E.R., Semeniuk W., Florek M., 2008. Effects of protein-xanthophyll (PX) concentrate of alfalfa additive to crude protein-reduced diets on nitrogen excretion, growth performance and meat quality of pigs. J. Cent. Eur. Agric. 8(4), 669–676.
Kimura F.T., Miller V.L., 1957. Improved determination of chromic oxide in cow feed and feces. J. Agric. Food. Chem. 5, 216–232.
Le Gall M., Warpechowski M., Jaguelin-Peyraud Y., Noblet J., 2009. Influence of dietary fibre level and pelleting on the digestibility of energy and nutrients in growing pigs and adult sows. Animal 3(3), 352–359.
Le Goff G., Noblet J., 2001. Comparative total tract digestibility of dietary energy and nutrients in growing pigs and adult sows. J. Anim. Sci. 79(9), 2418–2427.
Lindberg J.E., Andersson Ch., 1998. The nutritive value of barley-based diets with forage meal inclusion for growing pigs based on total tract digestibility and nitrogen utilization. Livest. Prod. Sci. 56(1), 43–52.
Van Soest P.J., 1973. Collaborative study of acid-detergents fiber and lignin. J. Assoc. Offic. Anal. Chem. 56, 781–784.
Windisch W., Schedle K., Plitzner C., Kroismayr A., 2008. Use of phytogenic products as feed additives for swine and poultry. J. Anim. Sci. 86, E140–E148.
Downloads
Download data is not yet available.
