title: Effect of liquid whey feeding on fecal microbiota of mature and growing pigs.
abstract: The effect of liquid whey feeding on fecal bacteria and their metabolites was assessed in five pregnant sows and 66 growing pigs. Sows were fed a control diet for 4 weeks (control period) followed by the same diet but with whey feeding (5 L/day/pig) for 4 weeks (whey period). One group of growing pigs was given 267 L of whey per pig (whey group), while the other group was not (control group). In both cases, liquid whey was given separately from control diet. Sows in the whey period had feces showing lower pH, lower ammonia concentration, and larger population sizes of total bacteria, lactobacilli and bifidobacteria. The bacterial gene library analysis indicated that Mitsuokella and Megasphaera were more frequently detected, while Clostridium disporicum were detected less frequently in the whey period. Feces from whey-fed growing pigs showed lower pH than that from control pigs in the early stage of growing. Also, larger populations of total bacteria, lactobacilli and bifidobacteria were recorded in the whey group. From the bacterial gene library analysis, the detection frequency of Lactobacillus reuteri tended to be higher in the whey group. These results indicate that whey feeding influences the hindgut microbiota of pigs, possibly leading to a fermentation shift that is favorable for animal health.
authors.affiliation: Research Faculty of Agriculture, Hokkaido University, Kita, Sapporo, Japan. kyas@anim.agr.hokudai.ac.jp
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Aya
authors.initials: A
authors.lastname: Itoh
authors.forename: Kanae
authors.initials: K
authors.lastname: Miyawaki
authors.forename: Satoshi
authors.initials: S
authors.lastname: Koike
authors.forename: Osamu
authors.initials: O
authors.lastname: Iwabuchi
authors.forename: Yuji
authors.initials: Y
authors.lastname: Iimura
authors.forename: Yuri
authors.initials: Y
authors.lastname: Kobashi
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Kawashima
authors.forename: Junichi
authors.initials: J
authors.lastname: Wakamatsu
authors.forename: Akihito
authors.initials: A
authors.lastname: Hattori
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Murakami
authors.forename: Fumiki
authors.initials: F
authors.lastname: Morimatsu
authors.forename: Takashi
authors.initials: T
authors.lastname: Nakaebisu
authors.forename: Takeshi
authors.initials: T
authors.lastname: Hishinuma
mesh_terms: D000821:Animal Feed; D000818:Animals; D001419:Bacteria / Q000302:isolation & purification; D001644:Bifidobacterium / Q000302:isolation & purification; D004269:DNA, Bacterial / Q000032:analysis; D004275:DNA, Ribosomal / Q000032:analysis; D005243:Feces / Q000382:microbiology*; D005260:Female; D005285:Fermentation; D006863:Hydrogen-Ion Concentration; D007778:Lactobacillus / Q000302:isolation & purification; D008894:Milk Proteins; D060888:Real-Time Polymerase Chain Reaction; D013552:Swine / Q000382:microbiology*; D000067816:Whey Proteins
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D008894:Milk Proteins; D000067816:Whey Proteins