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Associations of Pre- and Post-Partum Lying Time with Metabolic Status, Health, Survival, and Performance of Dairy Cows

Pineiro, Juan M, Pineiro
http://rave.ohiolink.edu/etdc/view?acc_num=osu1524140004464786

Abstract Details

2018, Doctor of Philosophy, Ohio State University, Comparative and Veterinary Medicine.
Dairy cattle have strong behavioral need to rest and deprivation of their lying time (LT) has been associated with lameness and changes in feeding behavior and endocrinological milieu. However, the effects of LT during the transition period on metabolic stress, inflammation, health and performance have not yet been fully investigated. Therefore, the following tree specific aims were conducted. A total of 1052 Holstein cattle (401 nulliparous heifers and 651 parous cows) from 3 commercial dairy farms were enrolled for this prospective cohort study. The first aim (Chapter 3) was to evaluate the association of pre- and postpartum lying time (LT) on calcium and energy balance (NEFA and BHB), inflammation (haptoglobin and hemogram), and health status of dairy cows. Prepartum LT had significant quadratic association on serum NEFA concentration, but was not significantly associated with serum Ca concentration within 48 h after calving. Increased LT within 14 DIM was associated with increased risk of diagnosis with ketosis within 14 DIM, inflammation, and incidence of postpartum diseases. Findings from this study suggest that LT along with Ca and energy balance are critical for transition cow health. The second aim (Chapter 4) was to assess the association of post-partum LT on milk yield, components (milk fat and protein percentage), and somatic cell count (SCC). Milk yield at first DHIA test was not associated with LT within the first 14 DIM, but was negatively correlated with the daily coefficient of variation (CV) of LT within 14 DIM. However, health status was associated with milk yield and components, and health status was associated with LT within 14 DIM. The third aim (Chapter 5) was to evaluate the association of lying time (LT) within the first 14 days in milk (DIM) and health status on culling within 60 DIM, cyclicity, and reproductive performance. LT had a positive linear association with culling, for every hour increment of LT within 14 DIM the culling risk within 60 DIM increased by 1 percentage point, and negative quadratic association with cyclicity at 42 DIM. Multiparous cows with a LT of 9-13 h/d had greater probability of pregnancy up to 300 DIM compared to cows with a LT >13 h/d. These findings suggest that there is an optimum daily LT range for early postpartum cows housed in freestall barns, different than reported for mid lactation cows, with the potential for improved reproductive performance.
Gustavo Schuenemann, Dr (Advisor)
William Weiss, Dr (Committee Member)
Alejandro Relling, Dr (Committee Member)
Gregory Habing, Dr (Committee Member)
158 p.
Animal Sciences
Lying time; Metabolic Status; Health; Milk Production; Reproductive Performance; Dairy Cattle

Recommended Citations

Citations

  • Pineiro, Pineiro, J. M. (2018). Associations of Pre- and Post-Partum Lying Time with Metabolic Status, Health, Survival, and Performance of Dairy Cows [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524140004464786

    APA Style (7th edition)

  • Pineiro, Pineiro, Juan. Associations of Pre- and Post-Partum Lying Time with Metabolic Status, Health, Survival, and Performance of Dairy Cows. 2018. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1524140004464786.

    MLA Style (8th edition)

  • Pineiro, Pineiro, Juan. "Associations of Pre- and Post-Partum Lying Time with Metabolic Status, Health, Survival, and Performance of Dairy Cows." Doctoral dissertation, Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524140004464786

    Chicago Manual of Style (17th edition)

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