The association between subclinical mastitis around calving and reproductive performance in grazing dairy cows

Villa-Arcila, N.A.; Sánchez, Javier; Ratto, M.H.; Rodríguez-Lecompte, J. C.; Duque-Madrid, P.C.; Sanchez-Arias, S.; Ceballos-Márquez, Alejandro

doi:10.1016/j.anireprosci.2017.08.010

Cited by 9 publications

(11 citation statements)

References 43 publications

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“…In the current study, CCI was not significantly different between SCM-positive and healthy cows. In contrast, in the study of Villa-Arcila et al (2017), CCI was 24 d longer in the SCM-positive cows compared with healthy cows. Similarly, CCI was 48.7 d longer in Chilean dairy cattle with high SCC (Pinedo et al, 2009) and 22.3 d longer in Jersey cows (Schrick et al, 2001) compared with control cows.…”

Section: Discussioncontrasting

confidence: 60%

“…Siatka et al (2019) and Pinedo et al (2009) have reported similar outcomes. In contrast, Villa-Arcila et al (2017) and Mohapatra and Ashutosh (2017) stated that interval from calving to first service did not differ significantly between the cows with SCM and without SCM. In the current study, CCI was not significantly different between SCM-positive and healthy cows.…”

Section: Discussionmentioning

confidence: 79%

“…It has been also reported that SCM significantly increased the number of services per conception in a pasture-based managed system (Gómez-Cifuentes et al, 2014). In the study of Villa-Arcila et al (2017), cows having SCM had on average 1.83 more services per conception than healthy cows in a rotational grazing system. In contrast, Mohapatra and Ashutosh, (2017) reported that number of services per conception did not differ significantly between the SCM and control groups in a population of crossbred cows.…”

Section: Discussionmentioning

confidence: 87%

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Subclinical mastitis in dairy cows in major milk-producing areas of Sri Lanka: Prevalence, associated risk factors, and effects on reproduction

Ranasinghe

Deshapriya

Abeygunawardana

et al. 2021

Journal of Dairy Science

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Compared with clinical mastitis, the subclinical form of mastitis (SCM) is more common and thought to cause more economic losses to the dairy industry. The current study aimed to investigate the prevalence, risk factors of SCM, and effects on reproduction of dairy cows in major milk-producing areas of Sri Lanka. A total of 1,357 cows of selected farms in 3 regions were examined in the study. California Mastitis Test was conducted for individual cows, and a score of 2 or more for any quarter without any clinical symptoms and abnormalities in milk was considered as positive for SCM. Samples from infected animals were collected and subjected to bacteriological analysis. A pretested questionnaire was used to collect data on individual cows and herds. Risk factors associated with SCM were analyzed using binary logistic regression in generalized linear mixed models. The effect of SCM on calving to conception interval and days from calving to artificial insemination were analyzed by survival analysis using Cox's proportional hazards regression and Kaplan-Meier survival function estimates, respectively. A Poisson regression model was run to determine the effect of SCM on number of artificial inseminations per conception. The prevalence of SCM was 57.5, 11.8, and 45.5% in the regions A, B, and C, respectively. The most common pathogen was Staphylococcus aureus, with 87.1, 56.5, and 92.3% in the regions A, B, and C, respectively. Logistic regression analysis showed that parity, farming system, milking area, region, and herd significantly affect the prevalence of SCM. Subclinical mastitis during the pre-breeding period was associated with 14% increase in the chance of having a greater number of artificial inseminations per conception. Likewise, median days from calving to artificial insemination was longer in cows with SCM compared with normal cows (79 and 64 d, respectively). Therefore, SCM affected the inseminated proportion of studied cows. However, SCM was not associated with the calving to conception interval. The results revealed that the cow factors and milk hygiene play a significant role in the prevalence of SCM.

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Section: Discussioncontrasting

confidence: 60%

Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 87%

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Subclinical mastitis in dairy cows in major milk-producing areas of Sri Lanka: Prevalence, associated risk factors, and effects on reproduction

Ranasinghe

Deshapriya

Abeygunawardana

et al. 2021

Journal of Dairy Science

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“…On the contrary, Huszenicza et al (2005) found no impact of CM on the PR or the DO. Villa-Arcila et al (2017) reported that, subclinical mastitis was not associated with calving to first service interval; however, the calving to conception interval (days open) was longer in cows with high SCC and also had a higher NSPC compared to healthy cows. Nava-Trujillo et al (2010) proposed that negative energy balance (NEB), deficient dry matter intake, massive BCS loss, low blood glucose, low insulin and insulin like growth factor-1levels could be the potential explanations behind the extended calving-first estrus interval.…”

Section: Discussionmentioning

confidence: 95%

A retrospective study on the relationship among different dry period lengths, udder health status and their possible effects on the reproductive performance of Holstein-Frisian cows

Khalil

Hussein

2019

Journal of Veterinary Medical Research

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“…This form of mastitis has 15-40% more chances to occur [9] because of its asymptomatic nature. SCM is diagnosed through somatic cell count SCC of milk sample and in SCM the somatic cell count is about 200000 cells/ml in bovine [10] which is positive in milk samples three to four times per year [11].…”

Section: Introductionmentioning

confidence: 99%

Impact of Subclinical Mastitis on Reproductive Performance of Dairy Animals

Ghani¹,

Liu

Birmani

et al. 2019

International Journal of Veterinary Sciences Research

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According to the international dairy federation, the dairy sector provides up to one billion livelihoods around the globe. Albeit, it faces many challenges including the two potentially threatening diseases which are mastitis and infertility. Both are complex multifactorial diseases, and mastitis is associated with causing infertility. Mastitis is an intramammary infection (IMI) and it occurs in two forms, clinical and subclinical. Mastitis being the infection of mammary glands, directly affects milk production to reduce its quality and quantity and indirectly hinders the reproductive performance of dairy animals. It negatively affects the reproduction parameters of dairy animals including, an increase in days open, a decrease in pregnancy rates, and increases chances of early embryonic losses and abortion. The chronic cases of mastitis lead toward the infertility of dairy animals and both of these diseases are responsible for increasing the culling rate and decreasing the profitability of a dairy farm. The objective of this study is to illustrate the influence of subclinical mastitis on reproduction parameters of dairy animals including, days open, days to the first service after calving, pregnancy rates, abortion, and embryonic losses. The relation between mastitis and infertility will be explained mechanistically. Contribution/Originality:This study contributes to the literature related to the field of animal science and particularly it discusses the issues related to subclinical mastitis in dairy animals. The primary purpose of this study is to bring this issue under the attention of animal science researchers and veterinarians to understand the gravity of situation and to work for treatment and cure of intramammary infections.Mastitis is described as the infection of mammary glands which causes physical, chemical and bacteriological changes in milk and pathological changes in mammary glands [3]. Intramammary infection (IMI) happened to be

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The association between subclinical mastitis around calving and reproductive performance in grazing dairy cows

Cited by 9 publications

References 43 publications

Subclinical mastitis in dairy cows in major milk-producing areas of Sri Lanka: Prevalence, associated risk factors, and effects on reproduction

Subclinical mastitis in dairy cows in major milk-producing areas of Sri Lanka: Prevalence, associated risk factors, and effects on reproduction

A retrospective study on the relationship among different dry period lengths, udder health status and their possible effects on the reproductive performance of Holstein-Frisian cows

Impact of Subclinical Mastitis on Reproductive Performance of Dairy Animals

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