Factors Affecting Test-Day Somatic Cell Counts and Milk Yield of Dairy Cows

Fadlelmoula, Abdelaziz Ahmed; Anacker, G.; Fahr, Rolf-Dieter; Swalve, Hermann H.

doi:10.3923/ijds.2008.105.111

Cited by 6 publications

(2 citation statements)

References 28 publications

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“…Higher incidence of SCM than the current investigation has been accounted as 86.87, 75.00, 75.00 and 80.00% incidence in Jersey, HF, Sahiwal and Gir animals respectively [16]. In the context of somatic cell count nearly similar value for log10SCC which was 5.39 ±0.30 has been reported [17]. However, higher mean log10SCC value (5.51±0.01) in Jersey cow [18] while lesser SCC values than the present study with the mean ± SE log10 SCC of 4.804±0.069 in Red Holstein cows has been reported [19].…”

Section: Resultssupporting

confidence: 73%

Interdependence and Distribution of Subclinical Mastitis and Intra-Mammary Infection Among Udder Quarters in Jersey Crossbred Cows

Pranay¹,

Bhakat²,

Japheth³

et al. 2019

Preprint

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The study was aimed to investigate the interdependence and distribution of subclinical mastitis (SCM) and intra-mammary infection (IMI) among udder quarters in Jersey crossbred cows reared in hot-humid environment. Total 366 quarter wise morning milk samples were collected aseptically after performing California mastitis test (CMT) at milking byre itself to evaluate the incidence of infection in experimental cows maintained at cattle yard, ICAR- National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal and subjected to microscopic method of somatic cell count to estimate the level of intra-mammary infection. The overall quarter wise incidence rate of IMI and SCM in Jersey crossbred cows was 54.65% and overall arithmetical mean (±SE) of test day SCC (logarithmic) was 5.377 ± 0.039. The percent incidence of SCM in different quarter was 51.14, 59.79, 48.94 and 58.70 in left fore (LF), left hind (LH), right fore (RF) and right hind (RH) quarters respectively. The higher incidence was observed in hind (59.23%) as comparison to fore (50%) quarters while incidence was found to be slightly more distributed in left (55.56%) than right side (53.76%) quarters. Further, the analysis of variance showed that there was no significant effect of quarter on the log 10SCC level. However, the mean Log 10SCC was found higher for hind and right quarters numerically only. The trend of subclinical mastitis incidence obtained in the current study point out that, the rate of incidence of SCM in different quarters was not similar and was higher in hind quarters and therefore, hind and right side quarter required attention during different udder health management programmes.

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Section: Resultssupporting

confidence: 73%

Interdependence and Distribution of Subclinical Mastitis and Intra-Mammary Infection Among Udder Quarters in Jersey Crossbred Cows

Pranay¹,

Bhakat²,

Japheth³

et al. 2019

Preprint

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“…Similar to present study, the gradual increase in SCC level with the advancement of stage of lactation have been observed in previous studies(Fadlelmoula et al, 2008; Ruegg and Pantoja, 2013) and stage of lactation was found as an important risk factor as cows in late lactation (>200 days in milk) had higher risk to have more SCC than cows in early and mid-lactation(Sandrucci et al, 2014). Increased SCC values towards the end of lactation could be due to higher infection rate as the teat streak canals aredilated due to continuous milking and dilution effect of increased milk yield during early lactation and declines of milk yield during mid and late lactation.…”

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confidence: 92%

Influence of Animal Factors on Milk Somatic Cell Count in Crossbred Cows Reared Under Hot-Humid Climatic Condition

Bhakat¹

2019

Preprint

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The present study was undertaken with the objective of influence of various animal factors like parity, stage of lactation, production level and season of calving on milk somatic cell count (SCC) in Jersey crossbred cows reared under hot-humid climatic condition. Total 366 quarter wise morning milk samples were collected aseptically from the experimental cows maintained at cattle yard, ICAR- National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal and subjected to microscopic method of somatic cell count. The estimated overall arithmetical mean (±SE) of SCC (logarithmic) was 5.377 ± 0.039. There was significant (P<0.01) effect of all the animal factors and season of calving on Log10SCC. The SCC was significantly (P<0.05) higher in cows of later parities and late stage of lactation. Medium milk producer animals had significant (P<0.05) lower mean SCC as compared to low and high milk producers. The SCC level was significantly (P<0.05) higher in cows calved during the summer season followed by cows calved in rainy and winter season. It can be concluded that the animal factors like parity, lactation stage, production level and season of calving has noteworthy effect on milk SCC level in crossbred cows under hot-humid climatic condition and therefore, these factors can be taken into account while selecting dairy animals accompanied by SCC can be used as routine tests to achieve the best strategy for the treatment and prevention of intra-mammary infections (IMI) in dairy cows.

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Somatic Cell Count in Relation to Udder and Morphometry in Holstein Friesian Dairy Cows

Gavan¹,

Mihaela²

2021

JAST-A

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Factors Affecting Test-Day Somatic Cell Counts and Milk Yield of Dairy Cows

Cited by 6 publications

References 28 publications

Interdependence and Distribution of Subclinical Mastitis and Intra-Mammary Infection Among Udder Quarters in Jersey Crossbred Cows

Interdependence and Distribution of Subclinical Mastitis and Intra-Mammary Infection Among Udder Quarters in Jersey Crossbred Cows

Influence of Animal Factors on Milk Somatic Cell Count in Crossbred Cows Reared Under Hot-Humid Climatic Condition

Somatic Cell Count in Relation to Udder and Morphometry in Holstein Friesian Dairy Cows

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