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Current IssueEditorial BoardOnline First ArticlesArchive

Research Article

volume 53 issue 5 (may 2019) : 672-674,   Doi: 10.18805/ijar.B-3559

Screening of animals for subclinical mastitis: A  discriminate function analysis

P
P.V. Jadhav
S
S.B. Tarate
D
D.N. Das
K
K.P. Suresh
1South Regional Station of National Dairy Research Institute, Adgudi, Bangalore-560 030, Karnataka, India.
Cite article:- Jadhav P.V., Tarate S.B., Das D.N., Suresh K.P. (2018). Screening of animals for subclinical mastitis: A discriminate function analysis. Indian Journal of Animal Research. 53(5): 672-674. doi: 10.18805/ijar.B-3559.

ABSTRACT

The study was aimed to construct a discriminate model to differentiate health status of the udder in dairy lactating Holstein cows. Though SCC is a single most reliable indicator of mastitis, a fine demarcation line to differentiate the healthy and subclinical animals based on SCC, rarely exist. The model included contributory factors such as log_SCC, stage of lactation, rainy season, stall hygiene score, udder hygiene score and milking method constructed and was found to demonstrate 89.2 per cent accuracy with p< 0.001 and the Holstein functions at group centroids are -0.982 and 1.209 respectively for normal and mastitis infected animals. The model will facilitate 92.3 per cent of the cases to correctly classify for non-mastitis normal animals and 85.3 per cent to predict correctly as mastitis.

REFERENCES

  1. Jadhav, P.V., Tarte S.B., Das, D.N., Bhuvana, M. and Shome, B.R. (2016). Somatic Cell Count as a monitoring system for hygienic milk production in India. Asian Journal of Dairy and Food Science 35 (4): 270-77.
  2. Jerome, C. (1962). Joint dependence of risk of coronary heart disease on serum cholesterol and systolic blood pressure: a discriminant function analysis. Federation of American Societies for Experimental Biology, Washington, D.C. Federation Proceedings. Supplement no. 11, pp 58-61
  3. Martin, S.W., Aziz, S.A., Sandals, W.C.D. and Curtis, R.A. (1982). The association between clinical disease, production and culling of Holstein-Friesian cows. Canadian Journal of Animal Science. 62: 633-640.
  4. Sharif, A. and Muhammad, G. (2008). Somatic cell count as an indicator of udder health status under modern dairy production: a review. Pakistan Veterinary Journal. 28 (4): 194-200.
  5. Singh, M. and Ludri, R.S. (2000). Somatic cell counts in Murrah buffaloes (Bubalis bubalis) during different stages of lactation, parity and season. Asian-Australian Journal of Animal Science. 14: 189-192.
  6. Thirunavukkarasu, M. (2003). A model to discriminate mastitic and non-mastitic milch animals. Indian Veterinary Journal. 80: 890-894
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Indian Journal of Animal Research
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    Research Article

    volume 53 issue 5 (may 2019) : 672-674,   Doi: 10.18805/ijar.B-3559

    Screening of animals for subclinical mastitis: A  discriminate function analysis

    P
    P.V. Jadhav
    S
    S.B. Tarate
    D
    D.N. Das
    K
    K.P. Suresh
    1South Regional Station of National Dairy Research Institute, Adgudi, Bangalore-560 030, Karnataka, India.
    Cite article:- Jadhav P.V., Tarate S.B., Das D.N., Suresh K.P. (2018). Screening of animals for subclinical mastitis: A discriminate function analysis. Indian Journal of Animal Research. 53(5): 672-674. doi: 10.18805/ijar.B-3559.

    ABSTRACT

    The study was aimed to construct a discriminate model to differentiate health status of the udder in dairy lactating Holstein cows. Though SCC is a single most reliable indicator of mastitis, a fine demarcation line to differentiate the healthy and subclinical animals based on SCC, rarely exist. The model included contributory factors such as log_SCC, stage of lactation, rainy season, stall hygiene score, udder hygiene score and milking method constructed and was found to demonstrate 89.2 per cent accuracy with p< 0.001 and the Holstein functions at group centroids are -0.982 and 1.209 respectively for normal and mastitis infected animals. The model will facilitate 92.3 per cent of the cases to correctly classify for non-mastitis normal animals and 85.3 per cent to predict correctly as mastitis.

    REFERENCES

    1. Jadhav, P.V., Tarte S.B., Das, D.N., Bhuvana, M. and Shome, B.R. (2016). Somatic Cell Count as a monitoring system for hygienic milk production in India. Asian Journal of Dairy and Food Science 35 (4): 270-77.
    2. Jerome, C. (1962). Joint dependence of risk of coronary heart disease on serum cholesterol and systolic blood pressure: a discriminant function analysis. Federation of American Societies for Experimental Biology, Washington, D.C. Federation Proceedings. Supplement no. 11, pp 58-61
    3. Martin, S.W., Aziz, S.A., Sandals, W.C.D. and Curtis, R.A. (1982). The association between clinical disease, production and culling of Holstein-Friesian cows. Canadian Journal of Animal Science. 62: 633-640.
    4. Sharif, A. and Muhammad, G. (2008). Somatic cell count as an indicator of udder health status under modern dairy production: a review. Pakistan Veterinary Journal. 28 (4): 194-200.
    5. Singh, M. and Ludri, R.S. (2000). Somatic cell counts in Murrah buffaloes (Bubalis bubalis) during different stages of lactation, parity and season. Asian-Australian Journal of Animal Science. 14: 189-192.
    6. Thirunavukkarasu, M. (2003). A model to discriminate mastitic and non-mastitic milch animals. Indian Veterinary Journal. 80: 890-894
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