scholarly journals Prevalencia de parásitos gastrointestinales en vacas lecheras de sistema de producción tipo familiar

2022 ◽  
Vol 8 (II) ◽  
Author(s):  
Iris Yaratzmín Ortiz-Muñoz ◽  
Teodulo Salinas-Rios ◽  
María Isabel Pérez-León ◽  
Magaly Aquino-Cleto ◽  
Héctor Maximino Rodríguez-Magadán ◽  
...  
Keyword(s):  

La presencia de endoparásitos es un problema frecuente que afectan principalmente la salud y productividad de hatos lecheros. El objetivo fue determinar el efecto de la condición corporal, número de partos y época del año en la presencia de parásitos gastrointestinales en vacas de lechería familiar en los distritos de Etla y Zimatlán de Álvarez, Oaxaca, México. El estudio se realizó en primavera, verano, otoño e invierno, con 185 vacas Holstein (116 de Etla y 69 de Zimatlán de Álvarez), con diferente condición corporal (≤ 2.0, 2.5 y ≥3) y número de partos (1-3 y 4-6). Las muestras fecales se analizaron mediante la técnica de flotación con solución saturada de cloruro de sodio. Los datos se sometieron a un análisis de varianza a través de un modelo de datos categóricos (P < 0.05), considerando como efectos fijos la condición corporal, número de partos, época del año y distritos. El 66 % de las vacas presentaron huevos y ooquistes de parásitos intestinales, no habiendo diferencia entre distritos. Eimeria spp. fue mayor (p < 0.05) en ambos distritos. Cryptosporidium, Strongyloide y Oesophagostomum fueron mayores (p < 0.05) en Zimatlán de Álvarez. La proporción de casos se incrementaron (p < 0.05) en primavera y verano. Se concluye que las condiciones climáticas, la condición corporal y el número de partos son factores que contribuyen a incrementar la presencia de parásitos gastrointestinales, principalmente de Eimeria spp. en vacas de lechería familiar de los Distritos de Etla y Zimatlán de Álvarez.

Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1432
Author(s):  
Alip Kumar ◽  
Sarbast K. Kheravii ◽  
Lily Li ◽  
Shu-Biao Wu

This study evaluated the potential of monoglyceride blend (MG) and buffered formic acid (FA) as alternatives to antibiotics in the performance and intestinal health of broilers under clinical necrotic enteritis (NE) challenge. A total of 544 as-hatched Ross 308 broiler chicks were randomly distributed to 32-floor pens housing 17 birds per pen. The four treatments were: NC—non-additive control; ZBS—antibiotic group supplemented with zinc bacitracin and salinomycin; MG—additive MG supplementation in the starter phase only; and MGFA—additive MG in starter phase and FA in grower and finisher phases. All birds were challenged with Eimeria spp. and Clostridium perfringens. Results showed that the NC group had lower BWG and higher FCR than the ZBS group in the grower and overall period (p < 0.05). The NC group had higher NE-caused mortality (days 14 to 17) than the ZBS group (p < 0.05). Birds fed MG had lower NE-caused mortality than the NC group (p < 0.05). Birds fed MG had upregulated jejunal tight junction protein1 (TJP1) and immunoglobulin (IgG) on day 16 and improved gross energy digestibility on day 24 than the NC group (p < 0.05). These findings suggest that supplementation of MG may improve intestinal health and protect birds from clinical NE occurrence.


2021 ◽  
pp. 101329
Author(s):  
Emanuel Gumina ◽  
Jeffrey W. Hall ◽  
Bruno Vecchi ◽  
Xochitl Hernandez-Velasco ◽  
Brett Lumpkins ◽  
...  

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2106
Author(s):  
Fernanda Lima de Souza Castro ◽  
Woo K. Kim

Amino acids such as arginine, methionine, and cysteine are the precursors of essential molecules that regulate growth and health, being classified as functional amino acids. This review describes the metabolism of arginine and the sulfur amino acids and how they modulate, directly or indirectly, different tissues. Emphasis is placed on their effects in supporting health during challenging conditions, such as heat stress and Eimeria infection. The use of arginine has been shown to reduce abdominal fat pad in ducks and increase lean tissue and bone mineral density in broilers. Additionally, the sulfur amino acids have been shown to improve bone development and are beneficial during heat stress. The use of L-methionine increased the cortical and trabecular bone mineral densities, in laying hens. Moreover, the dietary inclusion of these amino acids could reduce the damage caused by Eimeria spp. infection by regulating the antioxidant system and cell repair. Understanding how these amino acids can mitigate stressful conditions may provide us novel insights of their use as nutritional strategies to modulate the health status of chickens.


2009 ◽  
Vol 95 (4) ◽  
pp. 871-880 ◽  
Author(s):  
Ryan S. Schwarz ◽  
Mark C. Jenkins ◽  
Spangler Klopp ◽  
Katarzyna B. Miska

2018 ◽  
Vol 27 (1) ◽  
pp. 118-122
Author(s):  
Sérgio Tosi Cardim ◽  
Mércia Seixas ◽  
Victor Bittencourt Dutra Tabacow ◽  
Alessandra Taroda ◽  
Priscilla Gomes Carneiro ◽  
...  

Abstract Bovine coccidiosis is a disease of major importance in cattle herds across the world. The disorder mainly affects young calves, and E. bovis and E. zuernii are considered the most pathogenic species of the genus, however, E. alabamensis have been described in grazing calves. In this study, the prevalence of Eimeria spp. was evaluated in calves on dairy farms in the northern region of the state of Paraná, Brazil. Four hundred calves on 44 dairy farms were tested for the presence of coccidian oocysts. The positives were re-examined and the oocysts were morphometrically analyzed for species identification. All the farms were contaminated and 205 animals (51.25%) presented Eimeria spp. oocysts. Among these, 146 animals (71.22%) were co-infected by two or more species of coccidia. Ten species of Eimeria were identified: E. bovis (in 30.25% of the positive samples), E. alabamensis (26.75%), E. zuernii (22.00%), E. ellipsoidalis (18.50%), E. auburnensis (13.75%), E. canadensis (8.00%), E. cylindrica (7.25%), E. subspherica (5.00%), E. bukidnonensis (3.00%) and E. brasiliensis (0.75%). This study demonstrates the high prevalence of Eimeria spp. in the northern region of Paraná, Brazil, and detection for the first time in our region the pathogenic species E. alabamensis.


1988 ◽  
Vol 18 (3) ◽  
pp. 353-363 ◽  
Author(s):  
Ian K. Barker ◽  
Michael G. O'Callaghan ◽  
Ian Beveridge ◽  
Robert L. Close
Keyword(s):  

2007 ◽  
Vol 147 (1-2) ◽  
pp. 171-175 ◽  
Author(s):  
Jacek Karamon ◽  
Irena Ziomko ◽  
Tomasz Cencek

2009 ◽  
Vol 95 (1) ◽  
pp. 231-234 ◽  
Author(s):  
Antonio Carlos F. de Noronha ◽  
Wilma A. Starke-Buzetti ◽  
Donald W. Duszynski
Keyword(s):  

2021 ◽  
Vol 20 (4) ◽  
pp. 165-172
Author(s):  
Kelry Mayara da Silva ◽  
Robert Guaracy Aparecido ◽  
Claudia Harumi Oka ◽  
Adriano Barbieri ◽  
Brbara Fernanda da Silva B ◽  
...  
Keyword(s):  

2018 ◽  
Vol 97 (12) ◽  
pp. 4193-4199 ◽  
Author(s):  
Rajmund Sokół ◽  
Remigiusz Gałęcki
Keyword(s):  

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