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  • The American Association of Immunologists  (2)
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  • The American Association of Immunologists  (2)
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  • 1
    Online Resource
    Online Resource
    The American Association of Immunologists ; 2020
    In:  The Journal of Immunology Vol. 204, No. 1_Supplement ( 2020-05-01), p. 231.14-231.14
    In: The Journal of Immunology, The American Association of Immunologists, Vol. 204, No. 1_Supplement ( 2020-05-01), p. 231.14-231.14
    Abstract: The rumen microbiome and immune cell play important roles in metabolism and immune responses of dairy cows. Accumulation data suggesting that different species of dairy cow have differential heat stress resistance, however underlying mechanism by which non-host factors contribute heat stress responses. Thus, our study was designed to understand the changes of rumen microbiome and immune cell function to heat stress response in Holstein and Jersey cows. Respiration rate and rectal temperature were measured and rumen fluid and blood were collected for microbiome analysis and immune cell analysis under normal or heat-stressed environment from eight Holstein and Jersey cows. The rumen bacteria diversity and microbial gene enrichment was analyzed by using the Illumina HiSeq™ 4000 platform. The blood of dairy cows was collected for peripheral blood mononuclear cells (PBMCs) isolation and PBMCs were analyzed by RNA sequencing (Marcrogen, Korea) under the same environmental condition. Holstein had significantly higher respiration rate compared to that of Jersey in heat stress environment. We also find that gene transcription patterns associated with functional activities in PBMCs are differ between Holstein and Jersey. Distinct and more prominent changes of rumen bacteria taxa and functional gene abundance in Jersey cows may be associated with better adaption ability to heat stress. These data suggest that different species of dairy cows had different metabolic and immunological system to adapt heat stress responses.
    Type of Medium: Online Resource
    ISSN: 0022-1767 , 1550-6606
    RVK:
    RVK:
    Language: English
    Publisher: The American Association of Immunologists
    Publication Date: 2020
    detail.hit.zdb_id: 1475085-5
    Location Call Number Limitation Availability
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  • 2
    Online Resource
    Online Resource
    The American Association of Immunologists ; 2020
    In:  The Journal of Immunology Vol. 204, No. 1_Supplement ( 2020-05-01), p. 92.6-92.6
    In: The Journal of Immunology, The American Association of Immunologists, Vol. 204, No. 1_Supplement ( 2020-05-01), p. 92.6-92.6
    Abstract: The colostrum contains diverse and numerous immunoglobulins. The neonatal calf obtains majority of passive immunity from colostrum, which especially has huge effects on calf health. Historically, the amount of immunoglobulins in colostrum has been predicted through the density of the colostrum, but this correlation has not yet been clearly determined. In this study, we determined the correlation between the density and the immunoglobulin concentration, the difference between Holstein and Jersey cattle, and the impact by parity number. Densities were measured with Cruise densimeter. The concentration of immunoglobulins was assayed by ELISA. The concentration of total immunoglobulin G (IgG) and antibody against foot-and-mouth disease virus (FMDV) tend to increase following the density of the colostrum. However, the level of antibody against rota-corona virus was not positively correlated with the density. Regarding species and parity effects, interestingly, Holstein cows had significantly higher values in total IgG and FMDV antibody than Jersey cows. Multiparous dairy cows produced colostrums with higher concentrations of total IgG, FMDV antibody than primiparous dairy cows.
    Type of Medium: Online Resource
    ISSN: 0022-1767 , 1550-6606
    RVK:
    RVK:
    Language: English
    Publisher: The American Association of Immunologists
    Publication Date: 2020
    detail.hit.zdb_id: 1475085-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
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