Výsledky vyhledávání

Akademický článek

Reproductive physiological outcomes of dairy cows with different genomic merit for fertility: Biomarkers, uterine health, endocrine status, estrus features, and response to ovarian synchronization

Autor: E.M. Sitko, A. Laplacette, D. Duhatschek, C. Rial, M.M. Perez, S. Tompkins, A.L. Kerwin, J.O. Giordano

Publikováno v: Journal of Dairy Science, Vol 107, Iss 10, Pp 8670-8687 (2024)

ABSTRACT: Our overarching objective was to characterize associations between genomic merit for fertility and the reproductive function of lactating dairy cows in a prospective cohort study. In this manuscript, we present results of the association be

Externí odkaz: https://doaj.org/article/d35e01ef0d9e45cb8ecce3fb64f56d3f

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Akademický článek

Ovarian function and endocrine phenotypes of lactating dairy cows during the estrous cycle are associated with genomic-enhanced predictions of fertility potential

Autor: E.M. Sitko, A. Laplacette, D. Duhatschek, C. Rial, M.M. Perez, S. Tompkins, A.L. Kerwin, R.R. Domingues, M.C. Wiltbank, J.O. Giordano

Publikováno v: Journal of Dairy Science, Vol 107, Iss 9, Pp 7352-7370 (2024)

ABSTRACT: The objectives of this prospective cohort study were to characterize associations among genomic merit for fertility with ovarian and endocrine function and the estrous behavior of dairy cows during an entire nonhormonally manipulated estrou

Externí odkaz: https://doaj.org/article/097b5ef940474b4899b456fa62a57ddf

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Akademický článek

Effect of replacing a portion of inorganic chloride trace minerals with trace mineral amino acid complexes

Autor: A.L. Kerwin, G.M. Graef, C.M. Ryan, L. Ferro, S. Ordaz Puga, T.A. Westhoff, D.M. Barbano, D.H. Kleinschmit, T.R. Overton

Publikováno v: Journal of Dairy Science, Vol 106, Iss 9, Pp 6128-6145 (2023)

ABSTRACT: The objective was to determine whether replacing a portion of inorganic chloride trace minerals and cobalt carbonate in the diet with AA complexes of trace minerals and cobalt glucoheptonate will improve lactating cow performance, feed effi

Externí odkaz: https://doaj.org/article/2ef77291b537411a9e5787e09b54d7de

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Akademický článek

Transition cow nutrition and management strategies of dairy herds in the northeastern United States: Part III—Associations of management and dietary factors with analytes, health, milk yield, and reproduction

Autor: A.L. Kerwin, W.S. Burhans, D.V. Nydam, T.R. Overton

Publikováno v: Journal of Dairy Science, Vol 106, Iss 2, Pp 1246-1266 (2023)

ABSTRACT: The objective was to evaluate relationships between putative periparturient management and dietary factors at the pen and herd levels with metabolic- and inflammation-related analytes, health disorders, milk yield, and reproductive performa

Externí odkaz: https://doaj.org/article/df66e63bfba749d48af2f661e5c6302b

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Akademický článek

Associations of a liver health index with health, milk yield, and reproductive performance in dairy herds in the northeastern United States

Autor: A.L. Kerwin, M.M. McCarthy, W.S. Burhans, D.V. Nydam, S.K. Wall, K.M. Schoenberg, K.L. Perfield, T.R. Overton

Publikováno v: JDS Communications, Vol 3, Iss 6, Pp 446-450 (2022)

The objective was to evaluate a liver health index (LHI) by evaluating its association with negative health events, milk yield, and risk of pregnancy within 150 d in milk (DIM). In a retrospective cohort study, an LHI was calculated based on plasma a

Externí odkaz: https://doaj.org/article/00e0648ebf054cd2bffc6667af79d7cf

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Akademický článek

Transition cow nutrition and management strategies of dairy herds in the northeastern United States: Part I—Herd description and performance characteristics

Autor: A.L. Kerwin, W.S. Burhans, S. Mann, M. Tetreault, D.V. Nydam, T.R. Overton

Publikováno v: Journal of Dairy Science, Vol 105, Iss 6, Pp 5327-5348 (2022)

ABSTRACT: Our objective was to describe management and herd characteristics of the transition period on freestall dairy herds in the northeastern United States using an on-farm survey and prospective cohort design. Enrolled herds (n = 72) had a media

Externí odkaz: https://doaj.org/article/d44a22b67df7496790c1a6ec4d267e38

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Akademický článek

Transition cow nutrition and management strategies of dairy herds in the northeastern United States: Part II—Associations of metabolic- and inflammation-related analytes with health, milk yield, and reproduction

Autor: A.L. Kerwin, W.S. Burhans, S. Mann, D.V. Nydam, S.K. Wall, K.M. Schoenberg, K.L. Perfield, T.R. Overton

Publikováno v: Journal of Dairy Science, Vol 105, Iss 6, Pp 5349-5369 (2022)

ABSTRACT: The objectives were as follows: (1) establish cow-level thresholds for prepartum nonesterified fatty acids (NEFA) and postpartum NEFA, β-hydroxybutyrate (BHB), and haptoglobin (Hp) concentrations associated with negative health events; (2)

Externí odkaz: https://doaj.org/article/ef8fdaff020a46cf8b2b14f2c29a8f88

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Akademický článek

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Akademický článek

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Association of subclinical hypocalcemia dynamics with dry matter intake, milk yield, and blood minerals during the periparturient period

Autor: A.L. Kerwin, C. R. Seely, T. R. Overton, Jessica A.A. McArt, B. M. Leno

Publikováno v: Journal of Dairy Science. 104:4692-4702

Subclinical hypocalcemia (SCH) affects many high-producing dairy cows in the postpartum period. Recent work has shown that cows experiencing prolonged or delayed SCH are at increased risk for disease and produce less milk than cows experiencing a tra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d663c0cb42280238e4b00d571bf12be
https://doi.org/10.3168/jds.2020-19344

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