title: Evaluation of secretion volume and immunoglobulin A and G concentrations in sow colostrum from anterior to posterior teats.
abstract: Among domestic animals, teat order is only observed in the pig. In order to achieve the healthy growth and weaning of piglets, it is important to elucidate if volume of colostrum secretion and immunoglobulin A (IgA) and IgG concentrations differ among the teats of a sow. Nine sows were used to evaluate the difference in colostrum secretion volume (CSV) and four of these sows were assessed for IgA and IgG concentrations from each teat. Samples were collected five times during 21 h following parturition. Teats were assigned anatomical locations of teat (1 to 7) from anterior to posterior. The CSV of anterior (locations 1 and 2) and middle teats (locations 3-5) was significantly higher than those of posterior teats (locations 6 and 7) throughout the experiment except for 18 h post-parturition (P < 0.05). The CSV of the teats at location 1 was significantly higher at most collection times than those at locations 6 and 7. A positive correlation of CSV was observed with IgA and IgG concentrations from 12 h and 6 h post-parturition, respectively (P < 0.05). The results suggest that anterior teats secrete greater volumes of colostrum and that these tend to contain higher IgA and IgG than posteriors teats.
authors.affiliation: Laboratory of Animal Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan.
authors.forename: Shohei
authors.initials: S
authors.lastname: Ogawa
authors.forename: Takamitsu
authors.initials: T
authors.lastname: Tsukahara
authors.forename: Takeshi
authors.initials: T
authors.lastname: Tsuruta
authors.forename: Ryoichiro
authors.initials: R
authors.lastname: Nishibayashi
authors.forename: Mie
authors.initials: M
authors.lastname: Okutani
authors.forename: Masako
authors.initials: M
authors.lastname: Nakatani
authors.forename: Kaya
authors.initials: K
authors.lastname: Higashide
authors.forename: Shiori
authors.initials: S
authors.lastname: Iida
authors.forename: Nobuo
authors.initials: N
authors.lastname: Nakanishi
authors.forename: Kazunari
authors.initials: K
authors.lastname: Ushida
authors.forename: Ryo
authors.initials: R
authors.lastname: Inoue
mesh_terms: D000818:Animals; D003126:Colostrum / Q000276:immunology* / Q000378:metabolism*; D005260:Female; D007070:Immunoglobulin A / Q000378:metabolism*; D007074:Immunoglobulin G / Q000378:metabolism*; D008321:Mammary Glands, Animal / Q000276:immunology* / Q000378:metabolism*; D049590:Postpartum Period; D013552:Swine / Q000276:immunology* / Q000378:metabolism*; D013997:Time Factors
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G
keywords: IgA; IgG; colostrum; sow; teat order