Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/47865
Título: Effect of milking frequency on milk immunoglobulin concentration (IgG, IgM and IgA) and chitotriosidase activity in Majorera goats
Autores/as: Hernández Castellano, Lorenzo Enrique 
Torres, Alexandre
Alavoine, A.
Ruiz-Díaz, M. D.
Argüello Henríquez, Anastasio 
Capote Álvarez, Juan Francisco 
Castro Navarro, Noemí 
Clasificación UNESCO: 3104 Producción Animal
Palabras clave: Once-Daily Milking
Dairy-Cows
Energy-Balance
In-Vitro
Lactation, et al.
Fecha de publicación: 2011
Publicación seriada: Small Ruminant Research 
Resumen: Eleven goats belonging to Majorera breed were used during the early lactation to determine the milk IgG, IgM and IgA concentration and the chitotriosidase (ChT) activity in milk at three different milking frequencies. Goats were machine milked during 5 weeks; at week 1 and 5 once daily, at week 2 and 4 twice daily and at week 3, three times a day. Every week, milk samples (50 ml) were collected from each goat after the morning milking. The samples were aliquoted and storage at -80 degrees C until immunoglobulins concentration and ChT activity were analyzed. To determine the IgG, IgM and IgA concentration a commercial goat ELISA kit was used and ChT activity was measured using a fluorimetric assay. Milk IgG and IgM concentration decreased as milking frequency increased, showing an enhance trend when the milking frequency returned to milking once daily. IgA concentration increased throughout the experimental period from 0.03 mg/ml (week 1) to 0.09 mg/ml (week 4). ChT activity decreased from week 1 (782.90 nmol/ml/h) to week 5 (651.18 nmol/ml/h). In conclusion, milking frequency affected the milk immune status, although different evolutions have been observed. Findings in the present report might help in the discussion about the susceptibility of mastitis when milking frequency is increased.
URI: http://hdl.handle.net/10553/47865
ISSN: 0921-4488
DOI: 10.1016/j.smallrumres.2011.03.021
Fuente: Small Ruminant Research [ISSN 0921-4488], v. 98 (1-3), p. 70-72, (Junio 2011)
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