title: Consumption of nutritional pellets with Duddingtonia flagrans fungal chlamydospores reduces infective nematode larvae of Haemonchus contortus in faeces of Saint Croix lambs.
abstract: Two groups of six Haemonchus contortus infected Saint Croix lambs each received different diets for 11 weeks: control group, commercial food, molasses and lucerne hay; and treated group, nutritional pellets (NPs) containing Duddingtonia flagrans at 2 × 106 chlamydospores/kg body weight (BW), sorghum and lucerne hay. Mean BW gain (BWG), body condition score (BCS) and packed cell volume (PCV) and also eggs/g of faeces (EPG) and recovered L3 were compared using a repeated measures across time model. Groups had similar BWG (control 139.7 ± 0.035 g/day and treated 167.7 ± 0.041 g/day), BCS (control 3.6 ± 0.39 and treated 3.4 ± 0.46) and PCV (control 32.5 ± 1.68% and treated 30.0 ± 1.68%). The mean EPG of the control group was 1215 ± 1040 and in the treated group it was 2097.91 ± 2050. No reduction in larval population was observed during weeks 2 and 3. The greatest larval population reduction in the faeces of treated lambs was observed during the first week (70.5%) and from weeks 6 to 11, with a mean value close to 70% (P < 0.05). In general, both experimental groups showed a similar feed conversion. It was concluded that both diets resulted in similar lamb growth, PCV, BCS and H. contortus EPG. However, NP consumption significantly reduced the H. contortus L3 population in lamb faeces.
authors.affiliation: Centro Nacional de Investigación Disciplinaria en Parasitología Veterinaria, (CENID-PAVET, INIFAP),Boulevard Paseo Cuauhnahuac No. 8534,Col. Progreso,Jiutepec,CP 62550,Morelos,México.
authors.forename: L
authors.initials: L
authors.lastname: Aguilar-Marcelino
authors.affiliation: Centro Nacional de Investigación Disciplinaria en Parasitología Veterinaria, (CENID-PAVET, INIFAP),Boulevard Paseo Cuauhnahuac No. 8534,Col. Progreso,Jiutepec,CP 62550,Morelos,México.
authors.forename: P
authors.initials: P
authors.lastname: Mendoza-de-Gives
authors.affiliation: Colegio de Postgraduados, Carretera México-Texcoco,Km 36.5, Montecillo,Texcoco,CP 56230,Estado de México,México.
authors.forename: G
authors.initials: G
authors.lastname: Torres-Hernández
authors.affiliation: Centro Nacional de Investigación Disciplinaria en Parasitología Veterinaria, (CENID-PAVET, INIFAP),Boulevard Paseo Cuauhnahuac No. 8534,Col. Progreso,Jiutepec,CP 62550,Morelos,México.
authors.forename: M E
authors.initials: ME
authors.lastname: López-Arellano
authors.affiliation: Colegio de Postgraduados, Carretera México-Texcoco,Km 36.5, Montecillo,Texcoco,CP 56230,Estado de México,México.
authors.forename: C M
authors.initials: CM
authors.lastname: Becerril-Pérez
authors.affiliation: Universidad Autónoma del Estado de Morelos, Av. Universidad No. 1001. Col. Chamilpa,Cuernavaca,CP 62209,Morelos,México.
authors.forename: A
authors.initials: A
authors.lastname: Orihuela-Trujillo
authors.affiliation: FMVZ,CCBA Universidad Autónoma de Yucatán,Km 15.5 Carretera Mérida-Xmatkuil,CP 97000,Mérida,México.
authors.forename: J F J
authors.initials: JFJ
authors.lastname: Torres-Acosta
authors.affiliation: Centro Nacional de Investigación Disciplinaria en Parasitología Veterinaria, (CENID-PAVET, INIFAP),Boulevard Paseo Cuauhnahuac No. 8534,Col. Progreso,Jiutepec,CP 62550,Morelos,México.
authors.forename: A
authors.initials: A
authors.lastname: Olmedo-Juárez
mesh_terms: D000821:Animal Feed / Q000032:analysis / Q000382:microbiology*; D000818:Animals; D059586:Duddingtonia / Q000502:physiology*; D005243:Feces / Q000469:parasitology*; D006188:Haemonchiasis / Q000469:parasitology* / Q000517:prevention & control; D006189:Haemonchus / Q000382:microbiology* / Q000502:physiology; D007814:Larva / Q000382:microbiology; D010572:Pest Control, Biological / Q000379:methods*; D012756:Sheep / Q000469:parasitology / Q000502:physiology; D012757:Sheep Diseases / Q000469:parasitology* / Q000517:prevention & control; D013172:Spores, Fungal / Q000502:physiology