LIU S T,HOU W X,CHENG S Y,et al.Effects of dietary citric acid on performance,digestibility of calcium and phosphorus,milk composition and immunoglobulin in sows during late gestation and lactation[J].Animal Feed Science and Technology,2014,191:67-75.
[2]
LEE D N,LIU S R,CHEN Y T,et al.Effects of diets supplemented with organic acids and nucleotides on growth,immune responses and digestive tract development in weaned pigs[J].Journal of Animal Physiology and Animal Nutrition,2007,91(11/12):508-518.
[3]
GERRITSEN R,VAN DIJK A J,RETHY K,et al.The effect of blends of organic acids on apparent faecal digestibility in piglets[J].Livestock Science,2010,134(1/2/3):246-248.
[4]
HANSEN C F,RIIS A L,BRESSON S,et al.Feeding organic acids enhances the barrier function against pathogenic bacteria of the piglet stomach[J].Livestock Science,2007,108(1/2/3):206-209.
ZHU K H,XU X R,SUN D F,et al.Effects of drinking water acidification by organic acidifier on growth performance,digestive enzyme activity and caecal bacteria in growing rabbits[J].Animal Feed Science and Technology,2014,190:87-94.
[8]
LUCKSTADT C.Synergistic acidifiers to fight salmonella[J].Feed Mix,2005,13(1):28-30.
[9]
VALENCIA Z,SC M,CHAVEZ E R,et al.Phytase and acetic acid supplementation in the diet of early weaned piglets:effect on performance and apparent nutrient digestibility[J].Nutrition Research,2002,22(5):623-632.
BORG B S,LIBAL G W,WAHLSTROM R C.Tryptophan and threonine requirements of young pigs and their effects on serum calcium,phosphorus and zinc concentrations[J].Journal of Animal Science,1987,64(4):1070-1078.
[13]
MALMLOF K.Amino acid in farm animal nutrition metabolism,partition and consequences of imbalance[J].Swedish Journal of Agriculture Research,1988,18(4):191-193.