The presence of anti-Hypoderma antibodies in udder milk samples, and correlation with selected parameters of dairy performance

Bednarko-Młynarczyk, Elżbieta; Szteyn, J.; Białobrzewski, Ireneusz; Wiszniewska-Łaszczych, Agnieszka

doi:10.2478/v10181-012-0075-6

Cited by 2 publications

(1 citation statement)

References 11 publications

(18 reference statements)

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“…However, as shown by later studies conducted by employees of the State Veterinary Institute in Pulawy, the extensiveness of infestation in Poland after the end of the program again reached the level of 20% to 100% of the population of cattle herds [11]. The studies carried out in the Warmia and Mazury voivodeship showed extensiveness of infestation at the level of 28% [21].…”

Section: Discussionmentioning

confidence: 99%

Effect of Mixed Invasions of Hypoderma bovis and Ostertagia ostertagi in Cattle on Milk Yield and Contents in Polish Dairy Farms

Wiszniewska-Łaszczych

Wysok

Wojtacka

et al. 2021

Animals

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Wide distribution of ecto- and endoparasites in cattle is a serious problem in the sustainability of a farm, due to the negative impact on animals’ health and productivity. The aim of this study was to determine the presence of antibodies against Ostertagia and Hypoderma in udder milk samples and the comparison of milk yield and content of the basic components of milk in ELISA-positive and ELISA-negative cows. Milk samples were collected from 148 lactating cows from 3 herds. Antibody detection was performed using specific ELISAs for Ostertagia ostertagi and Hypoderma bovis. Milk yield and content of protein, fat, and dry matter were studied in samples from each individual cow 11 times per year at 4 week intervals. The extensiveness of dual parasitic invasions in individual herds, estimated on the basis of udder milk testing with the ELISA test, varied and amounted to 3.22%, 11.36%, and 4.76% in the three studied herds, respectively. No antibodies were found in 61.2%, 22.7%, and 57.1% of the milk samples from the cows in each herd. The milk yield of ELISA-positive cows was significantly lower in comparison to the efficiency of ELISA-negative cows and amounted to 294 kg and even to 3672 kg of milk per year, per cow. No significant differences were found between the fat and protein contents of milk between ELISA-positive and -negative cows for both parasites.

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Section: Discussionmentioning

confidence: 99%

Effect of Mixed Invasions of Hypoderma bovis and Ostertagia ostertagi in Cattle on Milk Yield and Contents in Polish Dairy Farms

Wiszniewska-Łaszczych

Wysok

Wojtacka

et al. 2021

Animals

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Treatment and control of bovine hypodermosis with ivermectin long-acting injection (IVOMEC® GOLD)

Otranto

Johnson

Syvrud³

et al. 2016

Parasites Vectors

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BackgroundThe studies reported here were conducted to assess the efficacy of ivermectin long-acting injection (IVM LAI; IVOMEC® GOLD, Merial; 3.15 % w/v ivermectin) for the treatment and control of natural infestations of cattle by Hypoderma bovis and Hypoderma lineatum, which are the most economically important oestrid flies of cattle in the northern hemisphere.MethodsCattle selected from herds with a history of Hypoderma infestation were grouped into blocks of three (Italy, 33 cattle; Germany, 30 cattle) or two (USA, 16 cattle) animals each, on the basis of positivity at the pre-treatment anti-Hypoderma antibody titres. Within each block, animals were randomly allocated to one of the following treatment regimens: saline (control); IVM LAI, administered at the predicted time of occurrence of first-instar larvae (Italy, Germany, USA); IVM LAI, administered at the predicted time of occurrence of second- and/or third-instar larvae (Italy, Germany). All treatments were administered by subcutaneous injection in correspondence of the area anterior to the shoulder at 1 ml/50 kg body weight, which corresponds to 630 mcg IVM/kg for IVM LAI.ResultsNo Hypoderma larvae emerged from animals treated with IVM LAI, whereas live H. lineatum (Italy) or H. bovis (Germany, USA) larvae were collected from saline-treated animals (P < 0.01). No adverse reactions to treatments were in any of the animals enrolled in the study.ConclusionsThe results from this study demonstrate that ivermectin in a long-acting formulation is 100 % efficacious in the treatment of cattle naturally infested by H. bovis and H. lineatum larvae at all stages of development. IVM LAI can, therefore, be used as ‘prophylactic’ treatment for Hypoderma spp. infestations in absence of external evidence of their presence and thus prior to skin and carcass damage, and as ‘therapeutic’ treatment, when warbles are already present.

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The presence of anti-Hypoderma antibodies in udder milk samples, and correlation with selected parameters of dairy performance

Cited by 2 publications

References 11 publications

Effect of Mixed Invasions of Hypoderma bovis and Ostertagia ostertagi in Cattle on Milk Yield and Contents in Polish Dairy Farms

Effect of Mixed Invasions of Hypoderma bovis and Ostertagia ostertagi in Cattle on Milk Yield and Contents in Polish Dairy Farms

Treatment and control of bovine hypodermosis with ivermectin long-acting injection (IVOMEC® GOLD)

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