The effects of supplemental L-carnitine on growing performance of milkfed calves
Barra lateral del artículo
Publicado:
jun. 1, 2010
Contenido principal del artículo
Resumen
Forty-nine Holstein male calves were allocated in three subgroups at 3 days of age. L-carnitine supplementation levels of 0 (control), 90, and
180 mg/d were assigned randomly to the subgroups. All calves were weaned at the 70th d, and consumed 268 L of whole milk (4 kg/calf daily) in two meals during the weaning period. They also had free access to alfalfa straw and calf grower after the first week. Supplemental L-carnitine (CARNIPASS containing 18 % L-carnitine is the trademark registered by Lonza Ltd., Switzerland) was given to the calves with the morning milk during the whole experimental period. L-carnitine supplementation did not have any effect on daily gain, concentrate, roughage and total feed intake, and feed to gain ratio of milk fed calves. There was, however, a decreasing tendency (380 g/day for control, 363 g/day for 90 mg group and 341 g/day for 180mg/day) in the daily gain of calves as the L-carnitine level increased. Additionally, L-carnitine supplementation increased incidence of diarrhea (one case for control and 5 and 4 cases for 90 and 180 mg/d supplementation, respectively) in calves. In conclusion, milk-fed calves may meet their carnitine requirement from given milk along with alfalfa straw and calf grower concentrate, and 90 and 180 mg/day L-carnitine supplementation may increase diarrhea incidence in milk-fed calves.
Key words: calf, L-carnitine, health, growth, performance.
180 mg/d were assigned randomly to the subgroups. All calves were weaned at the 70th d, and consumed 268 L of whole milk (4 kg/calf daily) in two meals during the weaning period. They also had free access to alfalfa straw and calf grower after the first week. Supplemental L-carnitine (CARNIPASS containing 18 % L-carnitine is the trademark registered by Lonza Ltd., Switzerland) was given to the calves with the morning milk during the whole experimental period. L-carnitine supplementation did not have any effect on daily gain, concentrate, roughage and total feed intake, and feed to gain ratio of milk fed calves. There was, however, a decreasing tendency (380 g/day for control, 363 g/day for 90 mg group and 341 g/day for 180mg/day) in the daily gain of calves as the L-carnitine level increased. Additionally, L-carnitine supplementation increased incidence of diarrhea (one case for control and 5 and 4 cases for 90 and 180 mg/d supplementation, respectively) in calves. In conclusion, milk-fed calves may meet their carnitine requirement from given milk along with alfalfa straw and calf grower concentrate, and 90 and 180 mg/day L-carnitine supplementation may increase diarrhea incidence in milk-fed calves.
Key words: calf, L-carnitine, health, growth, performance.
Detalles del artículo
Cómo citar
Gorgulu, M., Karakok, S. G., & Gokce, G. (2010). The effects of supplemental L-carnitine on growing performance of milkfed calves. Cuban Journal of Agricultural Science, 44(2). Recuperado a partir de https://cjascience.com/index.php/CJAS/article/view/231
Sección
Ciencia Animal
Aquellos autores/as que tengan publicaciones con esta revista, aceptan los términos siguientes:
- Los autores/as conservarán sus derechos de autor y garantizarán a la revista el derecho de primera publicación de su obra, el cuál estará simultáneamente sujeto a la Licencia Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) que permite a terceros compartir la obra siempre que se indique su autor y su primera publicación esta revista. Bajo esta licencia el autor será libre de:
- Compartir — copiar y redistribuir el material en cualquier medio o formato
- Adaptar — remezclar, transformar y crear a partir del material
- El licenciador no puede revocar estas libertades mientras cumpla con los términos de la licencia
Bajo las siguientes condiciones:
- Reconocimiento — Debe reconocer adecuadamente la autoría, proporcionar un enlace a la licencia e indicar si se han realizado cambios. Puede hacerlo de cualquier manera razonable, pero no de una manera que sugiera que tiene el apoyo del licenciador o lo recibe por el uso que hace.
- NoComercial — No puede utilizar el material para una finalidad comercial.
- No hay restricciones adicionales — No puede aplicar términos legales o medidas tecnológicas que legalmente restrinjan realizar aquello que la licencia permite.
- Los autores/as podrán adoptar otros acuerdos de licencia no exclusiva de distribución de la versión de la obra publicada (p. ej.: depositarla en un archivo telemático institucional o publicarla en un volumen monográfico) siempre que se indique la publicación inicial en esta revista.
- Se permite y recomienda a los autores/as difundir su obra a través de Internet (p. ej.: en archivos telemáticos institucionales o en su página web) antes y durante el proceso de envío, lo cual puede producir intercambios interesantes y aumentar las citas de la obra publicada. (Véase El efecto del acceso abierto).