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Anti-ferritin autoantibody is a ferritin-binding protein commonly found in mammals; it is thought to form an immune complex with ferritin and thereby mediate the rapid clearance of circulating ferritin. The aim of this study is to determine concentrations of ferritin and anti-ferritin autoantibodies (immunoglobulin (Ig)M, IgG and IgA) in serum and colostrum of Holstein (H) and Japanese Black (JB) cows within 24 h of normal calving. Blood and colostrum samples were collected from cows of various ages (2-11 years) and calving number (1-8 live births). Mean ferritin concentrations were higher in colostrum than in serum for both breeds, and higher colostrum ferritin concentrations were found in H than JB cows. IgA antibodies in serum and colostrum from both breeds had negligible ferritin-binding activity. For both breeds, IgM and IgG antibodies had higher ferritin-binding activity in colostrum than in serum. There was a significant correlation between IgM and IgG ferritin-binding activities in serum and colostrum of H and JB cows. These results suggest that ferritin and IgM and IgG autoantibodies are actively transferred from the blood stream to the colostrum at prepartum or early lactation.
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http://dx.doi.org/10.1111/asj.12034 | DOI Listing |
Front Vet Sci
December 2024
College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, China.
The aim of this study was to investigate the impact of supplementary feeding with Chinese herbal mixtures on perinatal sows, focusing on their reproductive performance, immunity and breast milk quality. Sixty healthy pregnant sows (Large white, 4 parities) were randomly allocated into five treatment groups ( = 12 per group): the control group received a basal diet, the TRT1 group received a basal diet supplemented with 2 kg/t Bazhen powder (BZP), while the TRT2, TRT3, and TRT4 groups received a basal diet supplemented with 1 kg/t, 2 kg/t, and 3 kg/t Qi-Zhu-Gui-Shao soothing liver and replenishing blood powder (QZGSP), respectively. The trial lasted for a duration of 5 weeks, commencing from day 100 of gestation and concluding on day 21 postpartum.
View Article and Find Full Text PDFJ Dairy Sci
December 2024
Sistema Lechero, Instituto Nacional de Investigación Agropecuaria, Ruta 50 km 11, CP 70002 Colonia, Uruguay. Electronic address:
The purpose of this experiment was to evaluate the transference of passive immunity (TPI) and growth achieved by calves born to dams with low or high SCC at dry-off and fed with colostrum from cows with low or high SCC at dry-off. Forty multiparous (3.2 lactations; SD = 1.
View Article and Find Full Text PDFAnimals (Basel)
November 2024
Beijing Jingwa Agricultural Science and Technology Innovation Center, Beijing 101205, China.
In this study, the aim was to evaluate the effects of dietary 25-hydroxycholecalciferol supplementation from day 85 of gestation on performance, antioxidant capacity, and immunoglobulin level of sows and newborn piglets. On day 85 of gestation, forty Landrace × Yorkshire gestating sows (average body weight of 241 ± 6.8 kg; average parity of 3.
View Article and Find Full Text PDFJ Vet Diagn Invest
December 2024
Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, USA.
The 1890s marked a significant milestone with the introduction of antibody-based agglutination and precipitation assays, revolutionizing the detection of bacterial pathogens in both animals and humans. This era also witnessed pivotal contributions to our understanding of humoral immunity, as researchers elucidated the structure and functions of antibody molecules, laying the groundwork for diagnostic applications. Among antibody isotypes, IgG is of paramount importance in diagnostic investigations given its definitive indication of infection or vaccination, coupled with its widespread presence and detectability across various specimen types, such as serum, colostrum, milk, oral fluids, urine, feces, and tissue exudate.
View Article and Find Full Text PDFJDS Commun
November 2024
The Research Center for Animal Science, Graduate School of Integrated Science for Life, Hiroshima University, Higashi-Hiroshima, Japan 739-8528.
The aim of this study was to evaluate precision of estimating serum IgG concentration from total protein (TP) or gamma-globulin (γGLB) concentration as an alternative approach, and to compare morbidity of preweaning dairy calves differing in serum γGLB concentration. In trial 1, blood was sampled from 129 Holstein calves in the first week after birth, and serum concentrations of TP, γGLB, and IgG were measured. Spearman's correlation coefficient (r) between serum IgG and TP concentrations was 0.
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