&lt;b&gt;Accuracy of the FAMACHA© method in ewes fed different levels of crude protein

Macêdo, Francisco de Assis Fonseca de; Lourenço, Fábio José; Santello, Graziela Aparecida; Martins, Elias Nunes; Mora, Natália Holtz Alves Pedroso; Mexia, Alexandre Agostinho

doi:10.4025/actascianimsci.v36i2.21871

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…Healthier sheep appeared to favour areas providing greater foraging intake despite the potential higher risk of infection from ticks. Studies have shown that sheep with higher crude protein diets are less affected by gastrointestinal nematode infections in terms of weight gain, anaemia and FECs, and vegetation with high NDVI has been shown to be of higher quality in terms of protein content [40][41][42]. Furthermore, hosts can acquire immunity, which increases with exposure to parasites and prevents subsequent infections, thereby reducing the cost of foraging in areas with high parasite abundances [43,44].…”

Section: Discussionmentioning

confidence: 99%

Response to resources and parasites depends on health status in extensively grazed sheep

et al. 2020

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A fundamental question in animal ecology is how an individual's internal state and the external environment together shape species distributions across habitats. The increasing availability of biologgers is driving a revolution in answering this question in a wide range of species. In this study, the position of sheep ( Ovis aries ) from Global Positioning System collars was integrated with remote sensing data, field sampling of parasite distributions, and parasite load and health measures for each tagged individual. This allowed inter-individual variation in habitat use to be examined. Once controlling for a positive relationship between vegetation productivity and tick abundance, healthier individuals spent more of their time at sites with higher vegetation productivity, while less healthy individuals showed a stronger (negative) response to tick abundance. These trends are likely to represent a trade-off in foraging decisions that vary between individuals based on their health status. Given the rarity of studies that explore how animal distributions are affected by health and external factors, we demonstrate the value of integrating biologging technology with remote sensing data, traditional ecological sampling and individual measures of animal health. Our study, using extensively grazed sheep as a model system, opens new possibilities to study free-living grazing systems.

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Section: Discussionmentioning

confidence: 99%

Response to resources and parasites depends on health status in extensively grazed sheep

et al. 2020

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“…This can be done with an FAMACHA© chart that was developed as a diagnostic on-farm tool in South Africa. The chart provides farmers with a facility to identify animals that require anthelmintic treatment by comparing the ocular mucous membrane colour using a defined colour chart [ 14 , 17 ]. The FAMACHA© chart categorises the anaemic status of small ruminants based on the conjunctiva mucosal colour on a scale from 1 (optimal eye colour, red) to 5 (pale eye colour, white) [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Morbidity Parameters Associated with Gastrointestinal Tract Nematodes in Sheep in Dabat District, Northwest Ethiopia

Tarekegn

Getnet

Chanie

et al. 2018

BioMed Research International

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Gastrointestinal nematode (GIN) infections of sheep and their interaction with selected morbidity parameters were studied in smallholder farms. 120 faecal samples were collected and examined using faecal flotation to determine nematode infection in sheep. Thus, the study demonstrated overall prevalence of 57.5% GIN infections, while the mean faecal egg count (FEC) was 517.5 EPG. The severity of GIN infection was determined based on EPG as a mild infection (EPG <500), 55.1%, moderate infection (EPG = 500–1500), 30.4%, and heavy infection (EPG >1500), 14.6%. Five genera of nematodes were identified using coproculture: Haemonchus (33.3%), Trichostrongylus (26.7%), Bunostomum (20%), Oesophagostomum (13.3%), and Cooperia (6.7%). A significant difference was observed in the mean FEC among the FC (P < 0.001), FAMACHA© score (P < 0.01), and the BCS of the animals (P < 0.001). FEC was positively correlated with the FAMACHA© score (FS), while FC and BCS were negatively correlated. Thus, FAMACHA© chart can suggest well the severity of nematode infections and can serve as a suitable on-farm tool to identify nematode-infected sheep and gives a guide to identify sheep that need to be treated with an anthelmintic.

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“…O método famacha mostrou-se eficaz na identificação de animais que necessitam tratamento antiparasitário e no controle do Haemonchus contortus (MARQUES et al, 2013;MACEDO et al, 2014;NUNES NETO et al, 2014;FERNANDES et al, 2015;HAFIZ et al, 2016;SANTANA et al, 2016).…”

Section: Introductionunclassified

PARÂMETROS SANGUÍNEOS E OPG (OVOS POR GRAMA DE FEZES) DE OVELHAS MESTIÇAS DA RAÇA Dorper EM DIFERENTES GRAUS DO MÉTODO FAMACHA

Amaducci

Borges

Sitko

et al. 2017

ArqVet

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Umuarama, v. 19, n. 4, p. 221-225, out./dez. 2016. RESUMO:A criação de ovinos no Brasil vem se desenvolvendo em larga escala nos últimos anos, entretanto, as verminoses continuam causando grandes perdas no setor de ovinocultura. Dentre as verminoses, as helmintoses são responsáveis pelos maiores prejuízos na criação de ovinos, sendo o principal parasita causador destas perdas o Haemonchuscontortus, predominante em diversas regiões do Brasil. Grande parte desta patogenicidade é proveniente de sua hematofagia e lesão na mucosa do abomaso. Esta perda de sangue implica também na perda de outros elementos figurados sanguíneos. Animais com intensa parasitose podem apresentar, além da anemia, leucopenia por linfopenia e perdas proteicas que caracterizam uma hipoproteinemia. Dessa forma, métodos de avaliação do estado sanitário dos animais foram desenvolvidos como estratégia auxiliar no controle do Haemonchus. O grau de anemia dos animais do experimento foi determinado pelo método Famacha e por métodos laboratoriais: albumina, hematócrito, hemoglobina, proteína plasmática total, contagem total de eritrócitos, volume globular, leucócitos totais, linfócitos e OPG (ovos por grama de fezes) em ovelhas. O objetivo foi correlacionar o método Famacha com os resultados dos parâmetros sanguíneos, para conhecer de forma mais rápida, o estado de anemia do animal como indicador de hemoncose. Foram utilizadas para o experimento 20 ovelhas mestiças da raça Dorper. As coletas de sangue, fezes e a avaliação da coloração da conjuntiva ocular por meio do método Famacha foram realizadas no mesmo dia. Foi observado um maior número de animais com o grau de Famacha2, os animais com grau 1 apresentaram menor número de OPG, maior número de hemácias, maior quantidade de hemoglobina, maior hematócrito quando comparados com os animais com graus 2 e 3. Conclui-se que o método Famacha é eficaz na estratégia de combate da hemoncose ovina. PALAVRAS-CHAVE: Haemonchus contortus. Hemograma. Ovinos. Verminose. BLOOD PARAMETERS AND EPG (EGGS PER GRAM OF FECES) OF CROSSBRED Dorper SHEEP RACE IN DIFFERENTS DEGREES OF THE FAMACHA METHODABSTRACT: Sheep farming in Brazil has been developing in a large scale in recent years. However, worms continue to cause great losses in sheep production. Among them, helminthes are responsible for major losses in sheep production, with the main parasite causing such losses being Haemonchuscontortus, prevalent in several regions in Brazil. Much of this pathogenicity comes from its hematophagy and the damage it causes to the abomasum mucosa. This blood loss also means the loss of other blood-formed elements. Animals with severe parasitic disease may present, as well as anemia, leukopenia by lymphopenia and protein loss characterizing hypoproteinemia. Thus, methods of assessing the sanitation status of animals were developed as a strategy to assist in the control of Haemonchus. The degree of anemia in experimental animals was determined by the Famacha method and by laboratory methods: albumin, hematocrit, hemoglobin, total pla...

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<b>Accuracy of the FAMACHA© method in ewes fed different levels of crude protein

Cited by 4 publications

References 13 publications

Response to resources and parasites depends on health status in extensively grazed sheep

Response to resources and parasites depends on health status in extensively grazed sheep

Morbidity Parameters Associated with Gastrointestinal Tract Nematodes in Sheep in Dabat District, Northwest Ethiopia

PARÂMETROS SANGUÍNEOS E OPG (OVOS POR GRAMA DE FEZES) DE OVELHAS MESTIÇAS DA RAÇA Dorper EM DIFERENTES GRAUS DO MÉTODO FAMACHA

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