Efficacy of in‐feed medication with chlortetracycline in a farrow‐to‐finish herd against a clinical outbreak of respiratory disease in fattening pigs

Sacristán, Rubén Del Pozo; Rodriguez, Alfonso Lopez; Sierens, A.; Vranckx, Katleen; Boyen, Filip; Dereu, A.; Haesebrouck, Freddy; Maes, Dominiek

doi:10.1136/vr.100976

Cited by 14 publications

(11 citation statements)

References 28 publications

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“…The ADG (+0.028 kg) was significantly improved in the TG. In some studies, significant differences in lung lesions and ADG were found in animals treated in-feed with chlortetracycline ( Del Pozo Sacristán and others 2012 ) or florfenicol ( Ciprián and others 2012 ), or a single intramuscular administration of tulathromycin ( Mckelvie and others 2005 ) compared with non-treated animals.…”

Section: Discussionmentioning

confidence: 99%

Use of tylvalosin in the control of porcine enzootic pneumonia

Pallarés¹,

Lasa

Roozen³

et al. 2015

Veterinary Record Open

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ObjectivesThe purpose of this study was to investigate the efficacy of tylvalosin (Aivlosin Water Soluble Granules, ECO Animal Health) in drinking water for control of Mycoplasma hyopneumoniae (M hyo) on a farm with chronic enzootic pneumonia (EP) problems and high prevalence of mycoplasma-like lesions at slaughter.DesignOn a 4000-sow farm in the southeast of Spain, 1500 animals of same age were randomly divided into two groups: 900 pigs in the treated group (TG) and 600 pigs in the non-treated control group (CG). TG was medicated for seven days with tylvalosin in drinking water (2.5 mg tylvalosin/kg bodyweight (BW)) at weaning (from 21st to 28th day of life) and a second treatment when moved to finisher barn (from 63rd to 70th day of life).ResultsIn the TG, there was a significant reduction in the severity (P<0.001) and number of animals with lung lesions (P<0.001) compared with CG. TG had an increased average daily gain and decreased average number of days in finishing. TG had a lower average carcase weight, but improved homogeneity. M hyo was not detected by q-PCR in samples, taken from lungs with characteristic EP lesions in the TG (0/9), in contrast to the CG (8/9 positive).ConclusionsA strategic medication with Aivlosin at 2.5 mg tylvalosin/kg BW in drinking water for seven days at weaning and when moved to finisher barn significantly reduces mycoplasma-like lung lesions and improves productivity parameters.

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Section: Discussionmentioning

confidence: 99%

Use of tylvalosin in the control of porcine enzootic pneumonia

Pallarés¹,

Lasa

Roozen³

et al. 2015

Veterinary Record Open

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“…The number of pigs coughing per pen was counted for 10 minutes. Then, a respiratory disease score (RDS) was calculated by dividing the number of pigs per pen that coughed during 10 minutes by the total number of pigs in that pen, multiplied by 100 (Mateusen and others 2002, Del Pozo Sacristán and others 2012). …”

Section: Methodsmentioning

confidence: 99%

“…Chronic Mycoplasma -like pneumonia lesions (fissures) were grey to purplish cranioventral scars, shrunken below the surface of the lobes, and had a more solid texture than the unaffected neighbouring parenchyma (Sorensen and others 2006, Del Pozo Sacristán and others 2012, 2014). Pleurisy was evident as fibrous adhesions between the lung lobes and/or the lungs and thoracic wall (Del Pozo Sacristán and others 2012, 2014, Michiels and others 2015). …”

Section: Methodsmentioning

confidence: 99%

Mycoplasma hyopneumoniaevaccination at or shortly before weaning under field conditions: a randomised efficacy trial

et al. 2017

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This study assessed the efficacy of two different Mycoplasma hyopneumoniae vaccination programmes in relation to the time of weaning. Eight hundred and twenty-eight piglets were randomly divided into three groups: group V1 was vaccinated three days before weaning, group V2 at weaning (21 days of age) and group NV was left non-vaccinated. Vaccinations were performed using Ingelvac MycoFLEX. After the nursery period, 306 pigs were allocated to fattening unit (F1) and 501 pigs to a second unit (F2). Efficacy was evaluated using performance parameters and pneumonia lesions at slaughter. Statistically significant differences were obtained in F2 where group V1 had a higher average daily weight gain compared to groups V2 and NV for the entire study period (17 and 18 g/day, respectively) and the fattening period (26 and 36 g/day, respectively) (P<0.05). Considering respiratory disease scores for both fattening units, group V1 was the only group where coughing severity did not increase significantly between placement and the end of the fattening period (P>0.05). Between groups, there were no statistically significant differences for the average lung lesion scores (V1=3.44; V2=4.61; NV=4.55, P>0.05) and the prevalence of pneumonia (V1=35.0 per cent; V2=38.0 per cent; NV=41.4 per cent, P>0.05). Overall, vaccination against M hyopneumoniae before weaning provided numerically better performance than vaccination at weaning, but did not reach statistical significance. An influenza outbreak in F1 and the presence of coexisting mixed respiratory infections in both F1 and F2 could have possibly influenced the performance of both vaccinated groups across all measured parameters.

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“…Our results are similar with the results received from Walter at al. (10) and Del Pozo Sacristan et al (11). The analysis of the results from the molecular-biological exams from a nose secretion didn't show any significant differences between the two groups.…”

Section: Resultsmentioning

confidence: 95%

Metafillactic efficiency of florfenicol, applied to the fodder of the pigs from the fattening infected with Mycoplasma hyopneumoniae

Pepovich¹

2018

TJS

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The field research has been conducted with 390 pigs, which have are the same weight and age and are affected by a subclinical form of enzootic pneumonia. The pigs have been divided into two groups. First group has been receiving concentrated forage, combined with the antibiotic medicine Florfenicol in dose 2.0 kg Feniveex-2% premix/1000 kg fodder, for 7 days. Second group has been receiving the same fodder, but with the supplement Tylosin in dose 1.0 kg Tylovet-10% premix/1000 kg, for 21 days (positive control). The pigs from both groups have been observed for a period of 30 days, aftere the beginning of the treatment with medical fodder. The field research has demonstrated, that the Florfenicol used in the beginning of the fattening has proved effective in the control of the enzootic pneumonia, in comparison with the group that has been receiving Tylosin. It is established improvement of the clinical status of the animals, decrease in death, lowering the damage of the lungs and an increase in the average daily growth.

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Efficacy of in‐feed medication with chlortetracycline in a farrow‐to‐finish herd against a clinical outbreak of respiratory disease in fattening pigs

Cited by 14 publications

References 28 publications

Use of tylvalosin in the control of porcine enzootic pneumonia

Use of tylvalosin in the control of porcine enzootic pneumonia

Mycoplasma hyopneumoniaevaccination at or shortly before weaning under field conditions: a randomised efficacy trial

Metafillactic efficiency of florfenicol, applied to the fodder of the pigs from the fattening infected with Mycoplasma hyopneumoniae

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