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Impact of Somatic Cell Count on Milk Yield, Milk Composition, and Growth Performance in Zaraibi Goats During Different Physiological Stages of Lactation Period

Received: 20 July 2023    Accepted: 7 August 2023    Published: 17 August 2023
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Abstract

The study investigated the effect of different somatic cell count (SCC) classes on milk production traits and growth of Zaraibi does and kids at three distinct physiological stages during lactation. A total of 150 milk samples obtained from 50 goats at milk peak, kids weaning, and meeting periods (days of 50, 100 and 150) were analyzed. The goats were selected based on strict criteria, including the same age, kidding date, low milk SCC, and no udder problems. The goats were divided into three classes based on overall milk SCC values: SCG1 (≤315x103 cells/mL), SCG2 (316-335x103 cells/mL), and SCG3 (>335 x103 cells/mL). The results showed that although there were significant differences between SCC1 and SCC2 classes in SCC and log SCC at different stages of lactation, there were no significant differences in milk production and composition. The daily milk yield decreased significantly with increased SCC level (> 335x103 cells/mL), and the highest milk losses were observed. The milk composition followed the same pattern of significant differences among SCC classes during different lactation stages, with the highest values observed in the highest SCC class (> 335x103 cells/mL). The daily milk yield decreased gradually with increasing lactation stage, while SCC values increased gradually. The does’ body weight did not change significantly by lactation stage. Overall, the findings suggest that SCC level of > 335x103 cells/mL has a significant effect on milk production and composition, but not on growth traits of Zaraibi does’ and kids during different stages of lactation. These findings could be useful for dairy farmers to manage their herds and optimize milk production to produce high-quality dairy products.

Published in Advances in Applied Physiology (Volume 8, Issue 2)
DOI 10.11648/j.aap.20230802.11
Page(s) 32-39
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), 2024. Published by Science Publishing Group

Keywords

Somatic Cell Count, Milk Production, Milk Composition, Growth Performance, Zaraibi Goats

References
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    Ahmed Abdelrazek Gabr, Mohamed Ibrahim Ahmed, Rasha Abdalla Hawas. (2023). Impact of Somatic Cell Count on Milk Yield, Milk Composition, and Growth Performance in Zaraibi Goats During Different Physiological Stages of Lactation Period. Advances in Applied Physiology, 8(2), 32-39. https://doi.org/10.11648/j.aap.20230802.11

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    ACS Style

    Ahmed Abdelrazek Gabr; Mohamed Ibrahim Ahmed; Rasha Abdalla Hawas. Impact of Somatic Cell Count on Milk Yield, Milk Composition, and Growth Performance in Zaraibi Goats During Different Physiological Stages of Lactation Period. Adv. Appl. Physiol. 2023, 8(2), 32-39. doi: 10.11648/j.aap.20230802.11

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    AMA Style

    Ahmed Abdelrazek Gabr, Mohamed Ibrahim Ahmed, Rasha Abdalla Hawas. Impact of Somatic Cell Count on Milk Yield, Milk Composition, and Growth Performance in Zaraibi Goats During Different Physiological Stages of Lactation Period. Adv Appl Physiol. 2023;8(2):32-39. doi: 10.11648/j.aap.20230802.11

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  • @article{10.11648/j.aap.20230802.11,
      author = {Ahmed Abdelrazek Gabr and Mohamed Ibrahim Ahmed and Rasha Abdalla Hawas},
      title = {Impact of Somatic Cell Count on Milk Yield, Milk Composition, and Growth Performance in Zaraibi Goats During Different Physiological Stages of Lactation Period},
      journal = {Advances in Applied Physiology},
      volume = {8},
      number = {2},
      pages = {32-39},
      doi = {10.11648/j.aap.20230802.11},
      url = {https://doi.org/10.11648/j.aap.20230802.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.aap.20230802.11},
      abstract = {The study investigated the effect of different somatic cell count (SCC) classes on milk production traits and growth of Zaraibi does and kids at three distinct physiological stages during lactation. A total of 150 milk samples obtained from 50 goats at milk peak, kids weaning, and meeting periods (days of 50, 100 and 150) were analyzed. The goats were selected based on strict criteria, including the same age, kidding date, low milk SCC, and no udder problems. The goats were divided into three classes based on overall milk SCC values: SCG1 (≤315x103 cells/mL), SCG2 (316-335x103 cells/mL), and SCG3 (>335 x103 cells/mL). The results showed that although there were significant differences between SCC1 and SCC2 classes in SCC and log SCC at different stages of lactation, there were no significant differences in milk production and composition. The daily milk yield decreased significantly with increased SCC level (> 335x103 cells/mL), and the highest milk losses were observed. The milk composition followed the same pattern of significant differences among SCC classes during different lactation stages, with the highest values observed in the highest SCC class (> 335x103 cells/mL). The daily milk yield decreased gradually with increasing lactation stage, while SCC values increased gradually. The does’ body weight did not change significantly by lactation stage. Overall, the findings suggest that SCC level of > 335x103 cells/mL has a significant effect on milk production and composition, but not on growth traits of Zaraibi does’ and kids during different stages of lactation. These findings could be useful for dairy farmers to manage their herds and optimize milk production to produce high-quality dairy products.},
     year = {2023}
    }
    

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  • TY  - JOUR
    T1  - Impact of Somatic Cell Count on Milk Yield, Milk Composition, and Growth Performance in Zaraibi Goats During Different Physiological Stages of Lactation Period
    AU  - Ahmed Abdelrazek Gabr
    AU  - Mohamed Ibrahim Ahmed
    AU  - Rasha Abdalla Hawas
    Y1  - 2023/08/17
    PY  - 2023
    N1  - https://doi.org/10.11648/j.aap.20230802.11
    DO  - 10.11648/j.aap.20230802.11
    T2  - Advances in Applied Physiology
    JF  - Advances in Applied Physiology
    JO  - Advances in Applied Physiology
    SP  - 32
    EP  - 39
    PB  - Science Publishing Group
    SN  - 2471-9714
    UR  - https://doi.org/10.11648/j.aap.20230802.11
    AB  - The study investigated the effect of different somatic cell count (SCC) classes on milk production traits and growth of Zaraibi does and kids at three distinct physiological stages during lactation. A total of 150 milk samples obtained from 50 goats at milk peak, kids weaning, and meeting periods (days of 50, 100 and 150) were analyzed. The goats were selected based on strict criteria, including the same age, kidding date, low milk SCC, and no udder problems. The goats were divided into three classes based on overall milk SCC values: SCG1 (≤315x103 cells/mL), SCG2 (316-335x103 cells/mL), and SCG3 (>335 x103 cells/mL). The results showed that although there were significant differences between SCC1 and SCC2 classes in SCC and log SCC at different stages of lactation, there were no significant differences in milk production and composition. The daily milk yield decreased significantly with increased SCC level (> 335x103 cells/mL), and the highest milk losses were observed. The milk composition followed the same pattern of significant differences among SCC classes during different lactation stages, with the highest values observed in the highest SCC class (> 335x103 cells/mL). The daily milk yield decreased gradually with increasing lactation stage, while SCC values increased gradually. The does’ body weight did not change significantly by lactation stage. Overall, the findings suggest that SCC level of > 335x103 cells/mL has a significant effect on milk production and composition, but not on growth traits of Zaraibi does’ and kids during different stages of lactation. These findings could be useful for dairy farmers to manage their herds and optimize milk production to produce high-quality dairy products.
    VL  - 8
    IS  - 2
    ER  - 

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Author Information
  • Department of Animal Production, Faculty of Agriculture, Mansoura University, Mansoura, Egypt

  • Animal Production Research Institute, Ministry of Agriculture, Giza, Egypt

  • Department of Animal Production, Faculty of Agriculture, Mansoura University, Mansoura, Egypt; Animal Production Research Institute, Ministry of Agriculture, Giza, Egypt

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