Dung avoidance behavior in Crioula Lanada lambs naturally infected with gastrointestinal nematodes in a rotational pasture system

Bricarello, Patrízia Ana; Costa, Leticia Rodrigues; Longo, Caterina; Seugling, Jaqueline; Basseto, César Cristiano; Amarante, Alessandro Francisco Talamini do; Hötzel, María José

doi:10.1590/s1984-29612022012

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…In pasture, the peak of L3 occurred in week 2 of collection, but in week 1 the L3 were already found in the pasture and in the soil. Solar radiation has been shown to be determinant in the migration of free-living stages in the same region (Bricarello et al , 2022). It is probable that episodes of rainfall greater than 15 mm on the third, fourth, ninth and twelfth days after deposition of faeces favoured the exit of L3 from the faecal bolus, thus rapidly and progressively decreasing the number of larvae in the faeces.…”

Section: Discussionmentioning

confidence: 99%

Effect of growing forage legumes on the migration and survival in the pasture of gastrointestinal nematodes of sheep

et al. 2022

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In order to identify types of forage that inhibit pasture contamination, an evaluation was performed of the effect of the forage legumes Trifolium repens (white clover), Trifolium pratense (red clover) and Lotus corniculatus (bird's-foot-trefoil) on the survival and migration of infective larvae (L3) of gastrointestinal nematodes (GIN) of sheep. An experimental area of 441 m2 was divided into four blocks, subdivided into areas of 1.20 × 1.20 in which the three forage legumes were separately overseeded. After growth of the forage in each subdivision, experimental units were established that were later artificially contaminated with sheep faeces containing GIN eggs. Between October and December 2018, pasture, faecal and soil samples were collected on four occasions during weeks 1, 2, 4 and 8 after the deposition of faeces. In week 6, the forage legumes in all the experimental units were mown to simulate grazing. The number of L3 was quantified to determine their survival in the pasture, faeces and soil. In addition, the horizontal migration of L3 was measured at two distances from the faecal pellets (10 and 30 cm), as well as their vertical migration at two heights of the plant stems, that is, lower half and upper half. Larvae vertical migration was affected by the forage species (P < 0.001), in that bird's-foot-trefoil contained fewer larvae in the upper stratum. Bird's-foot-trefoil restricted the migration of L3 to the upper stratum of the plant, which could potentially decrease the risk of infection by intestinal nematodes in grazing sheep.

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Section: Discussionmentioning

confidence: 99%

Effect of growing forage legumes on the migration and survival in the pasture of gastrointestinal nematodes of sheep

et al. 2022

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“…The grazing behaviour of lambs, in particular how close they will graze to faecal pats (the level of larval contamination increases closer to the faeces), has an impact on the level of nematode challenge. This has been noted to be affected by the worm burden (Bricarello and others 2022), although the relationship is complex; animals with moderate burdens appear to avoid grazing close to faecal pats most assiduously, but grazing distance was affected by levels of solar radiation and the period of time the lambs had been in the paddocks.…”

Section: New Developments In Non‐chemotherapeutic Controlmentioning

confidence: 98%

Guide to advances in the control of gastrointestinal roundworms in sheep

Crilly¹

2023

In Practice

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Background: In the UK, diseases caused by gastrointestinal nematodes (GINs) are the most expensive endemic diseases, being a major cause of morbidity, mortality and lost production in sheep flocks. Control is complicated by the increasing prevalence of anthelmintic resistance in the GIN population and changes in epidemiology, partially driven by climate change. Therefore, there is great emphasis among sheep farmers and veterinarians to find methods to successfully control GINs and prevent associated diseases. Aim of the article: This article outlines the different strategies that can be implemented on farm to try and sustainably control parasitic gastrointestinal nematodes of sheep.

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The diversity and quality of forages and their potency as herbal anthelmintic for swamp buffalo in Brebes District, Central Java

Satrija

Nurhidayah²,

Astuti

et al. 2023

Vet World

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Background and Aim: Swamp buffaloes play an important role in the rural economy of Indonesia. They consume various forages during their grazing time, including those with anti-parasitic potential. However, the information about the type and quality of forages and their potential as a natural anthelmintic for swamp buffalo is very limited. This study aimed to identify the diversity, quality, and anthelmintic potency of forages consumed by swamp buffaloes reared in Bantarkawung Subdistrict, Brebes District, Central Java Province, Indonesia. Materials and Methods: Samples of forages were obtained during three observation periods of the study, with a 12-week interval between each period. Forage diversity was evaluated by identifying its consumption by swamp buffaloes during their grazing activity in the field and feeding time in their shed. The quality of forages was analyzed using proximate analysis to measure their dry matter (DM), crude fiber (CF), crude protein (CP), crude fat (CFat), and ash contents. This is followed by the calculation of their total digestible nutrient based on the proximate analysis results. Botanical composition analysis was then conducted to measure the predominance of forages consumed by the livestock during their grazing activity. Literature reviews were carried out to explore forage’s anthelmintic activity. Results: The results showed that swamp buffaloes consume nine species of forage in the shed and 47 in the grazing area, including nine legumes, 18 grass, and 20 others. Swamp buffaloes consumed forages of lower quality, which contained high CF contents and varying levels of other nutrients below their daily nutritional needs. The grazing activity allowed swamp buffaloes to consume a higher variety of forages with better nutritional quality, thereby enabling them to meet their nutritional needs. Legumes and other forages served as the major protein sources, providing CP of 20.03% DM and 11.53% DM, and CF levels of 17.01% DM and 20.35% DM, respectively. The results also showed that the consumption of these forages increased during the rainy season. The predominant species of legumes consumed were Leucaena leucocephala and Acacia spp., while Alternanthera sessilis and Merremia umbellata were the predominant species of other forages. A total of 13 of the 47 species could potentially be used as natural anthelmintic due to their secondary metabolites, namely, tannin, flavonoid, saponin, terpenoid, diterpenoid, and mimosine. These compounds exert anthelmintic effects by inhibiting egg-hatching and larval development, as well as damaging the surface structure of both larvae and adult worms, ultimately leading to the death of the parasites. Conclusion: Overall, swamp buffaloes consumed more variety of forages during grazing compared to when they were kept in sheds. While the low-variety and low-quality forages provisioned for swamp buffaloes in their shed resulted in a low nutrient intake below their daily requirement. Furthermore, daily grazing activities allowed swamp buffaloes to fulfill and supplement their need by consuming a variety of grasses, legumes, and other forages in their respective grazing areas. Some of these forages also have the potential to become natural anthelmintic because they contain secondary metabolites, such as tannins, flavonoids, saponins, terpenoids, diterpenoids, and mimosine. Keywords: forages, herbal anthelmintics, Indonesia, nutrition, pastoral, swamp buffalo.

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Dung avoidance behavior in Crioula Lanada lambs naturally infected with gastrointestinal nematodes in a rotational pasture system

Cited by 4 publications

References 30 publications

Effect of growing forage legumes on the migration and survival in the pasture of gastrointestinal nematodes of sheep

Effect of growing forage legumes on the migration and survival in the pasture of gastrointestinal nematodes of sheep

Guide to advances in the control of gastrointestinal roundworms in sheep

The diversity and quality of forages and their potency as herbal anthelmintic for swamp buffalo in Brebes District, Central Java

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