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Effect of Cow Start Calcium Bolus on Metabolic Status and Milk Production in Early Lactation

Received: 22 October 2020     Accepted: 4 November 2020     Published: 19 November 2020
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Abstract

The objective of this study was to quantify the effect of a combined calcium, magnesium and anti-oxidant bolus on early lactation energy status and milk production performance of multiparous dairy cows compared to control, and calcium only bolus intervention. Multiparous (n=91) cows from a large Irish dairy herd, with a below-average incidence of hypocalcaemia, were enrolled in this study and randomly assigned to either a control (CON, n=30), a calcium only bolus (ABC, n=30) or a combined calcium, magnesium and anti-oxidant (Cow Start calcium) bolus (CSC, n=31). CON cows received no bolus and ABC and CSC cows received two boluses at 0- and 12-hours post-partum. Early lactation energy status was studied by recording milk ketone (beta hydroxybutyrate (BHBA)) levels at day 14 and day 28 post-partum, body condition scoring (BCS) of cows at week 0, 2, 4, 6, 8 and 12 post-partum and by weighing cows at week 0, 2, 4, 6 and 8 post-partum. Cows in the CSC group recorded significantly (P < 0.05) lower milk BHBA levels (0.43 mg/dL) when compared to CON (0.98 mg/dL) and a trend (P < 0.10) towards lower milk BHBA when compared to ABC (0.74 mg/dL). The CSC group also showed a trend (P < 0.07) towards reduced body condition loss between calving and nadir (- 0.39 BCS units) when compared to ABC (- 0.53 BCS units). Milk production volumes were significantly increased (P < 0.05) by 1.3kg per day from day 5 of lactation until day 90 for the CSC group (30.7kg/day) when compared to CON (29.4kg/day), with a trend (P < 0.10) of 0.8 kg per day toward higher milk production when compared to the ABC group (29.9 kg/day). Body weight change (kg), Milk Fat % and kg, Milk Protein % and kg, fat:protein ratio, combined milk components (milk fat and milk protein kg), and energy corrected milk were recorded and analysed, with no significant differences observed. Results of this study indicate that cows supplemented with the CSC bolus responded favourably to treatment with regard to improved metabolic status in the critical early lactation post-partum period when compared to control and a calcium only bolus intervention. Results of this study suggest that supplementing dairy cows with a combined calcium, magnesium and antioxidant oral boluses will have beneficial effects for early lactation dairy cows.

Published in Animal and Veterinary Sciences (Volume 8, Issue 6)
DOI 10.11648/j.avs.20200806.12
Page(s) 124-132
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Calcium and Antioxidant Bolus, Early Lactation, Metabolic Status

References
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Cite This Article
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    John Lawlor, Alan Fahey, Enda Neville, Alice Stack, Finbar Mulligan. (2020). Effect of Cow Start Calcium Bolus on Metabolic Status and Milk Production in Early Lactation. Animal and Veterinary Sciences, 8(6), 124-132. https://doi.org/10.11648/j.avs.20200806.12

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    ACS Style

    John Lawlor; Alan Fahey; Enda Neville; Alice Stack; Finbar Mulligan. Effect of Cow Start Calcium Bolus on Metabolic Status and Milk Production in Early Lactation. Anim. Vet. Sci. 2020, 8(6), 124-132. doi: 10.11648/j.avs.20200806.12

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    AMA Style

    John Lawlor, Alan Fahey, Enda Neville, Alice Stack, Finbar Mulligan. Effect of Cow Start Calcium Bolus on Metabolic Status and Milk Production in Early Lactation. Anim Vet Sci. 2020;8(6):124-132. doi: 10.11648/j.avs.20200806.12

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  • @article{10.11648/j.avs.20200806.12,
      author = {John Lawlor and Alan Fahey and Enda Neville and Alice Stack and Finbar Mulligan},
      title = {Effect of Cow Start Calcium Bolus on Metabolic Status and Milk Production in Early Lactation},
      journal = {Animal and Veterinary Sciences},
      volume = {8},
      number = {6},
      pages = {124-132},
      doi = {10.11648/j.avs.20200806.12},
      url = {https://doi.org/10.11648/j.avs.20200806.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.avs.20200806.12},
      abstract = {The objective of this study was to quantify the effect of a combined calcium, magnesium and anti-oxidant bolus on early lactation energy status and milk production performance of multiparous dairy cows compared to control, and calcium only bolus intervention. Multiparous (n=91) cows from a large Irish dairy herd, with a below-average incidence of hypocalcaemia, were enrolled in this study and randomly assigned to either a control (CON, n=30), a calcium only bolus (ABC, n=30) or a combined calcium, magnesium and anti-oxidant (Cow Start calcium) bolus (CSC, n=31). CON cows received no bolus and ABC and CSC cows received two boluses at 0- and 12-hours post-partum. Early lactation energy status was studied by recording milk ketone (beta hydroxybutyrate (BHBA)) levels at day 14 and day 28 post-partum, body condition scoring (BCS) of cows at week 0, 2, 4, 6, 8 and 12 post-partum and by weighing cows at week 0, 2, 4, 6 and 8 post-partum. Cows in the CSC group recorded significantly (P < 0.05) lower milk BHBA levels (0.43 mg/dL) when compared to CON (0.98 mg/dL) and a trend (P < 0.10) towards lower milk BHBA when compared to ABC (0.74 mg/dL). The CSC group also showed a trend (P < 0.07) towards reduced body condition loss between calving and nadir (- 0.39 BCS units) when compared to ABC (- 0.53 BCS units). Milk production volumes were significantly increased (P < 0.05) by 1.3kg per day from day 5 of lactation until day 90 for the CSC group (30.7kg/day) when compared to CON (29.4kg/day), with a trend (P < 0.10) of 0.8 kg per day toward higher milk production when compared to the ABC group (29.9 kg/day). Body weight change (kg), Milk Fat % and kg, Milk Protein % and kg, fat:protein ratio, combined milk components (milk fat and milk protein kg), and energy corrected milk were recorded and analysed, with no significant differences observed. Results of this study indicate that cows supplemented with the CSC bolus responded favourably to treatment with regard to improved metabolic status in the critical early lactation post-partum period when compared to control and a calcium only bolus intervention. Results of this study suggest that supplementing dairy cows with a combined calcium, magnesium and antioxidant oral boluses will have beneficial effects for early lactation dairy cows.},
     year = {2020}
    }
    

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  • TY  - JOUR
    T1  - Effect of Cow Start Calcium Bolus on Metabolic Status and Milk Production in Early Lactation
    AU  - John Lawlor
    AU  - Alan Fahey
    AU  - Enda Neville
    AU  - Alice Stack
    AU  - Finbar Mulligan
    Y1  - 2020/11/19
    PY  - 2020
    N1  - https://doi.org/10.11648/j.avs.20200806.12
    DO  - 10.11648/j.avs.20200806.12
    T2  - Animal and Veterinary Sciences
    JF  - Animal and Veterinary Sciences
    JO  - Animal and Veterinary Sciences
    SP  - 124
    EP  - 132
    PB  - Science Publishing Group
    SN  - 2328-5850
    UR  - https://doi.org/10.11648/j.avs.20200806.12
    AB  - The objective of this study was to quantify the effect of a combined calcium, magnesium and anti-oxidant bolus on early lactation energy status and milk production performance of multiparous dairy cows compared to control, and calcium only bolus intervention. Multiparous (n=91) cows from a large Irish dairy herd, with a below-average incidence of hypocalcaemia, were enrolled in this study and randomly assigned to either a control (CON, n=30), a calcium only bolus (ABC, n=30) or a combined calcium, magnesium and anti-oxidant (Cow Start calcium) bolus (CSC, n=31). CON cows received no bolus and ABC and CSC cows received two boluses at 0- and 12-hours post-partum. Early lactation energy status was studied by recording milk ketone (beta hydroxybutyrate (BHBA)) levels at day 14 and day 28 post-partum, body condition scoring (BCS) of cows at week 0, 2, 4, 6, 8 and 12 post-partum and by weighing cows at week 0, 2, 4, 6 and 8 post-partum. Cows in the CSC group recorded significantly (P < 0.05) lower milk BHBA levels (0.43 mg/dL) when compared to CON (0.98 mg/dL) and a trend (P < 0.10) towards lower milk BHBA when compared to ABC (0.74 mg/dL). The CSC group also showed a trend (P < 0.07) towards reduced body condition loss between calving and nadir (- 0.39 BCS units) when compared to ABC (- 0.53 BCS units). Milk production volumes were significantly increased (P < 0.05) by 1.3kg per day from day 5 of lactation until day 90 for the CSC group (30.7kg/day) when compared to CON (29.4kg/day), with a trend (P < 0.10) of 0.8 kg per day toward higher milk production when compared to the ABC group (29.9 kg/day). Body weight change (kg), Milk Fat % and kg, Milk Protein % and kg, fat:protein ratio, combined milk components (milk fat and milk protein kg), and energy corrected milk were recorded and analysed, with no significant differences observed. Results of this study indicate that cows supplemented with the CSC bolus responded favourably to treatment with regard to improved metabolic status in the critical early lactation post-partum period when compared to control and a calcium only bolus intervention. Results of this study suggest that supplementing dairy cows with a combined calcium, magnesium and antioxidant oral boluses will have beneficial effects for early lactation dairy cows.
    VL  - 8
    IS  - 6
    ER  - 

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Author Information
  • Anchor Life Science Ltd., Co. Cork, Ireland

  • College of Health and Agricultural Sciences, University College Dublin, Dublin, Ireland

  • College of Health and Agricultural Sciences, University College Dublin, Dublin, Ireland

  • Anchor Life Science Ltd., Co. Cork, Ireland

  • College of Health and Agricultural Sciences, University College Dublin, Dublin, Ireland

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