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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(8): 2279-2290
DOI: https://doi.org/10.20546/ijcmas.2020.908.261


Effect of Certain Plasma Hormones, Metabolites, Milk α-lactalbumin and Lactoferrin on the Persistency of Lactation in Sahiwal Cattle
S. M. Mishra1*, A. K. Roy1, Singh Mahendra1 and I. D. Gupta2
1Animal Physiology Division,
2Animal Genetics & Breeding Division, ICAR-National Dairy Research Institute, Karnal-132001, India
*Corresponding author
Abstract:

A study was conducted on twelve apparently healthy Sahiwal cows selected from National Dairy Research institute’s livestock herd. The cows were divided into two groups i.e. persistent and truncated based on their records of milking. The blood and milk samples were collected on 15, 30, 45, 60, 75, 90, 105, 120 days postpartum. Plasma glucose concentration was higher (P<0.05) in truncated than persistent cows on 60th and 120th days postpartum as well as between the days within same group. Plasma NEFA concentration was significantly higher (P<0.05) in truncated than persistent cows as well as between the days. Plasma cortisol was significantly higher (P<0.05) in truncated than Persistent cows. Plasma cortisol also varied (P<0.05) between the periods. Plasma GH was higher (P<0.05) in persistent than truncated cows but did not vary between periods. Plasma Oxytocin concentration did not vary significantly between animals as well as periods. Milk α-LA was higher (P<0.05) in persistent than truncated cows. Milk α-LA did not vary significantly between periods. Milk lactoferrin was higher (P<0.05) in persistent than truncated cows and also varied significantly between periods (P<0.05). It is concluded that the hormones such as GH andcortisol may have an effect on the persistency of lactation. Plasma metabolites like glucose, NEFA and milk proteins such as α-LA and lactoferrin could also be associated with the persistency of lactation which is not merely a function of livestock management.


Keywords: Hormones, Metabolites, Milk α-LA and lactoferrin, Persistency, Sahiwal cattle
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How to cite this article:

Mishra, S. M., A. K. Roy, Singh Mahendra and Gupta, I. D. 2020. Effect of Certain Plasma Hormones, Metabolites, Milk α-lactalbumin and Lactoferrin on the Persistency of Lactation in Sahiwal Cattle.Int.J.Curr.Microbiol.App.Sci. 9(8): 2279-2290. doi: https://doi.org/10.20546/ijcmas.2020.908.261