Impact of parity and housing conditions on concentration of immunoglobulin G in sow colostrum
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Colostrum is crucial for the survival and growth of suckling piglets. However, both the quantity and quality of colostrum are highly variable among sows. The aim of the present study was to determine the impact of sow parity number and housing conditions on concentration of immunoglobulin G in sow colostrum. A total of 358 colostrum samples were collected from two commercial swine herds in Thailand. The colostrum samples were collected from all teats at 1 and 6 h after the onset of farrowing and kept at − 20 °C until analysis. The concentration of IgG was determined using ELISA. The concentration of IgG in colostrum at 1 h after the onset of farrowing was greater than the concentration of IgG at 6 h after the onset of farrowing (P < 0.001). Moreover, herd A had a greater colostral IgG concentration than herd B (P < 0.001). The concentration of IgG in primiparous sows (64.0 mg/ml) was lower than that in sow parity numbers 3 (75.1 mg/ml, P = 0.05) and 6 (79.2 mg/ml, P = 0.04). In conclusion, the variation in colostral immunoglobulin concentration in the sow colostrum was influenced by their parity number and housing conditions. The concentration of IgG declined significantly within 6 h after the onset of farrowing (P < 0.001).
KeywordsColostrum Farrowing Immunoglobulin Piglet Sow
Financial support for the present study was provided by a grant for International Research Integration: Chula Research Scholar, Ratchadaphiseksomphot Endowment Fund (CU_GRS_61_04_31_01). M. Nuntapaitoon was funded by a Postdoctoral Fellowship from the Ratchadaphisek Somphot Fund.
Compliance with ethical standards
The experiment followed the guidelines documented in the Ethical Principles and Guidelines for the Use of Animals for Scientific Purposes edited by the National Research Council of Thailand and was approved by the Institutional Animal Care and Use Committee in accordance with the university regulations and policies governing the care and use of experimental animals (approval number 1731064).
Conflict of interest
The authors declare that they have no conflict of interest.
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