Economic impact of paratuberculosis on milk production

Vidić, Branka; Savić, Sara; Vidić, V.; Jovicin, Milovan; Prica, Nadežda

doi:10.2298/bah1302183v

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…However, no clear trends were observed. The decrease in the fat and protein content in seropositive cows observed in herd A in the current study was also observed in studies by Vidić et al [35], Bedenictus et al [17] and Sweeney et al [36]. In contrast, the milk from seropositive cows in studies conducted by Lombard et al [27] and Johnson et al [32] showed higher protein and fat content compared to that from seronegative cows.…”

Section: Discussionsupporting

confidence: 88%

The Effect of Mycobacterium avium subsp. Paratuberculosis Infection on the Productivity of Cows in Two Dairy Herds with a Low Seroprevalence of Paratuberculosis

Wiszniewska-Łaszczych

Szteyn

Lachowicz³

2020

Animals

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Simple Summary: Paratuberculosis is a chronic, progressive enteritis of ruminants, caused by Mycobacterium avium subspecies paratuberculosis. It affects the productivity of infected dairy cows, causing a reduction in the daily milk yield and basic milk components. The aim of the study was to determine the effect of Mycobacterium avium subspecies paratuberculosis on the productivity of dairy cows in naturally infected herds with different seroprevalences of paratuberculosis. A decrease in milk yield was observed in cows in herds with a higher seroprevalence. The largest decrease in milk yield and basic milk components was observed in older animals.Abstract: Paratuberculosis is a chronic, progressive enteritis of ruminants, caused by Mycobacterium avium subspecies paratuberculosis. It affects the productivity of infected dairy cows, causing a reduction in the daily milk yield and basic milk components. The aim of the study was to determine the effect of Mycobacterium avium subspecies paratuberculosis on the productivity of dairy cows in two herds. The research materials were serum and milk samples taken from cows from two naturally infected dairy herds. All serum samples were serologically tested using the Mycobacterium paratuberculosis Antibody ELISA Kit by IDEXX-Screening and Verification. Seroprevalence differed between the herds (5.7% and 11.3%). Seroprevalence varied also between the groups of lactation. The highest seroprevalence was found in the first lactation group in both herds. The milk yield evaluation and analysis of the basic milk components' content (protein and fat total solids) were tested once a month during one lactation period. The content of the basic milk components varied depending on the lactation group, as well as the serological status of the cows. A decrease in milk yield was observed in cows in herds with a higher seroprevalence (>11%). The largest decrease in milk yield and basic milk components was observed in older animals (>three lactations).

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Section: Discussionsupporting

confidence: 88%

The Effect of Mycobacterium avium subsp. Paratuberculosis Infection on the Productivity of Cows in Two Dairy Herds with a Low Seroprevalence of Paratuberculosis

Wiszniewska-Łaszczych

Szteyn

Lachowicz³

2020

Animals

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“…Economic losses to dairy industry are significant (Lu et al, 2013a;Hasnova and Pavlik, 2006;Vidić et al, 2013); estimated losses to US dairy industry cost $200-250 million annually (Cho et al, 2012;Ottet et al, 1999). Pillars et al (2009) reported averaged $79/cow/year with a median of $66/cow/year annual losses due to paratuberculosis.…”

Section: Economic Impactmentioning

confidence: 99%

Epidemiology and Management Strategies of Johne's disease in Endemic Situations

Munir

Hassan

Muhammad³

et al. 2014

Res. j. vet. pract.

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Mycobacterium paratuberculosis the subspecies of M. avium, effects wide range of animals including domestic cattle, sheep, goats, buffaloes, camelids and wild ruminants resulting in progressive and chronic enteritis known as Johne's disease (paratuberculosis). Clinically sick animals show emaciation, diarrhea and eventually death but the risk is that mostly they don't show clinical sign still can shed bacteria in feces and milk. Organism spread in the animal body through blood and lymph nodes to multiple internal organs. It is economically very important disease in livestock because effected livestock is recommended to be culled due to high treatment costs. Etiology, host range, immunology, epidemiology, stages/ forms, clinical signs, diagnostic tools and treatment have been discussed with special reference to endemic situations. Strategies to control this disease include improved management practices, testing and culling and vaccination. Modifications in management practices is not an easy job and so is the case with testing and culling; vaccine on the other hand is the simple practice but it is not usually practiced by farmers because lack of knowledge/awareness in herdsmen and availability of vaccine.All copyrights reserved to Nexus® academic publishers

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“…Animals with paratuberculosis tend to waste away despite of a healthy appetite. Infections with MAP in caprine herds result in significant economic loss, through slow progressive wasting and the subsequent death of the infected animals (Vidic et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Comparitive study on the efficacy of ELISA and IS900 PCR for the diagnosis of Paratuberculosis in goats

et al. 2014

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Paratuberculosis, one of the chronic granulomatous enteritis that predominantly affects ruminants worldwide, is caused by Mycobacterium avium subsp. paratuberculosis (MAP). It is most efficiently diagnosed by MAP from faeces by Polymerase Chain Reaction (PCR). Serological tests like Enzyme Linked Immuno Sorbent Assay (ELISA) also provides a rapid and cost-effective alternative diagnostic tool. Present study was carried out to directly evaluate the sensitivity and specificity of ELISA (ID vet innovative diagnostics; France) using IS900 PCR as a gold standard. Serum and faecal samples were collected from 180 adult goats of either sex, from Malappuram and Thrissur districts of Kerala with unknown paratuberculosis status. Faecal samples were processed for direct IS900 PCR and serum samples were tested for MAP antibodies using Indirect ELISA kit. IS900 PCR detected 38 out of 180 confirmed to be shedding MAP. ELISA detected 22 out of 180 animals as positive. Overall, ELISA was 50 % sensitive and 97.9 % specific in comparison to IS900 PCR. The IS900 PCR outperformed ELISA in detecting animals potentially infected with MAP and is more sensitive than ELISA at detecting animals suspected of paratuberculosis. But, for early diagnosis of paratuberculosis in goats, ELISA can be done as easy and rapid farm level identification and IS900 PCR as individual confirmatory test.

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Economic impact of paratuberculosis on milk production

Cited by 6 publications

References 11 publications

The Effect of Mycobacterium avium subsp. Paratuberculosis Infection on the Productivity of Cows in Two Dairy Herds with a Low Seroprevalence of Paratuberculosis

The Effect of Mycobacterium avium subsp. Paratuberculosis Infection on the Productivity of Cows in Two Dairy Herds with a Low Seroprevalence of Paratuberculosis

Epidemiology and Management Strategies of Johne's disease in Endemic Situations

Comparitive study on the efficacy of ELISA and IS900 PCR for the diagnosis of Paratuberculosis in goats

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