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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
12/10/2017 |
Actualizado : |
28/05/2018 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
SANTANA, A.; CAJARVILLE, C.; MENDOZA, A.; REPETTO, J. |
Afiliación : |
Universidad de la República (UdelaR)/ Facultad de Veterinaria; C. CAJARVILLE, Universidad de la República (UdelaR)/ Facultad de Veterinaria; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE LUIS REPETTO CAPELLO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Combination of legume-based herbage and total mixed ration (TMR) maintains intake and nutrient utilization of TMR and improves nitrogen utilization of herbage in heifers. |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
Animal , v. 11 n.4, p 616-624, 2017. |
DOI : |
10.1017/S1751731116001956 |
Idioma : |
Inglés |
Notas : |
Article history: Received 18 September 2015 /7 Accepted 11 July 2016// First published online 11 October 2016. |
Contenido : |
Abstract: Diets combining herbage and total mixed rations (TMR) are increasingly used in temperate regions for feeding ruminants,
but little information is available regarding the effects on nutrient intake and digestion of this feeding management in beef cattle.
The aim of this study was to determine the effects of combining TMR (10% CP and 13% ADF), and legume-based herbage
(14% CP and 27% ADF) on intake, nutrient digestion, ruminal fermentation, microbial N flow and glucose and nitrogen
metabolism in heifers. The experiment was a 3 × 3 Latin square design replicated three times; each period lasted 18 days
(10 adaptation days and 8 measurement days). Nine cross-bred (Aberdeen Angus × Hereford) heifers (214 ± 18 kg) fitted with
permanent rumen catheters and housed in individual metabolic cages were assigned to one of three treatments: 24 h access to
TMR ( T), 24 h access to herbage ( H) or combined diets with 18 h access to TMR and 6 h access to herbage ( T + H). Data were
evaluated using a mixed model. Animals fed T+H ( TMR 71% and herbage 29%) diets tended to have a higher dry matter intake
as a proportion of their BW than animals fed T. The T+ H diet did not change ruminal fermentation (pH, N?NH3 and volatile fatty
acids) or the N metabolism relative to the T diet, but increased the glucagon concentration and altered glucose metabolism.
Conversely, animals fed T +H had increased purine derivatives excretion, increased N use efficiency for microbial protein synthesis
and decreased plasma urea and urinary N excretion relative to animals fed H diet. The use of combined diets led to consumption
of nutrients similar to a TMR diet, without reducing nutrient use and could improve N utilization compared with the
herbage-only diet. MenosAbstract: Diets combining herbage and total mixed rations (TMR) are increasingly used in temperate regions for feeding ruminants,
but little information is available regarding the effects on nutrient intake and digestion of this feeding management in beef cattle.
The aim of this study was to determine the effects of combining TMR (10% CP and 13% ADF), and legume-based herbage
(14% CP and 27% ADF) on intake, nutrient digestion, ruminal fermentation, microbial N flow and glucose and nitrogen
metabolism in heifers. The experiment was a 3 × 3 Latin square design replicated three times; each period lasted 18 days
(10 adaptation days and 8 measurement days). Nine cross-bred (Aberdeen Angus × Hereford) heifers (214 ± 18 kg) fitted with
permanent rumen catheters and housed in individual metabolic cages were assigned to one of three treatments: 24 h access to
TMR ( T), 24 h access to herbage ( H) or combined diets with 18 h access to TMR and 6 h access to herbage ( T + H). Data were
evaluated using a mixed model. Animals fed T+H ( TMR 71% and herbage 29%) diets tended to have a higher dry matter intake
as a proportion of their BW than animals fed T. The T+ H diet did not change ruminal fermentation (pH, N?NH3 and volatile fatty
acids) or the N metabolism relative to the T diet, but increased the glucagon concentration and altered glucose metabolism.
Conversely, animals fed T +H had increased purine derivatives excretion, increased N use efficiency for microbial protein synthesis
and ... Presentar Todo |
Palabras claves : |
FEEDING SYSTEMS; MEZCLA TOTAL RACION (TMR); MICROBIAL PROTEIN SYNTHESIS; MIXED DIETS; PARTIAL MIXED RATION; PASTURE; UTILIZACIÓN DE NUTRIENTES. |
Thesagro : |
Forrajes. |
Asunto categoría : |
-- |
Marc : |
LEADER 02745naa a2200277 a 4500 001 1057651 005 2018-05-28 008 2017 bl uuuu u00u1 u #d 024 7 $a10.1017/S1751731116001956$2DOI 100 1 $aSANTANA, A. 245 $aCombination of legume-based herbage and total mixed ration (TMR) maintains intake and nutrient utilization of TMR and improves nitrogen utilization of herbage in heifers.$h[electronic resource] 260 $c2017 500 $aArticle history: Received 18 September 2015 /7 Accepted 11 July 2016// First published online 11 October 2016. 520 $aAbstract: Diets combining herbage and total mixed rations (TMR) are increasingly used in temperate regions for feeding ruminants, but little information is available regarding the effects on nutrient intake and digestion of this feeding management in beef cattle. The aim of this study was to determine the effects of combining TMR (10% CP and 13% ADF), and legume-based herbage (14% CP and 27% ADF) on intake, nutrient digestion, ruminal fermentation, microbial N flow and glucose and nitrogen metabolism in heifers. The experiment was a 3 × 3 Latin square design replicated three times; each period lasted 18 days (10 adaptation days and 8 measurement days). Nine cross-bred (Aberdeen Angus × Hereford) heifers (214 ± 18 kg) fitted with permanent rumen catheters and housed in individual metabolic cages were assigned to one of three treatments: 24 h access to TMR ( T), 24 h access to herbage ( H) or combined diets with 18 h access to TMR and 6 h access to herbage ( T + H). Data were evaluated using a mixed model. Animals fed T+H ( TMR 71% and herbage 29%) diets tended to have a higher dry matter intake as a proportion of their BW than animals fed T. The T+ H diet did not change ruminal fermentation (pH, N?NH3 and volatile fatty acids) or the N metabolism relative to the T diet, but increased the glucagon concentration and altered glucose metabolism. Conversely, animals fed T +H had increased purine derivatives excretion, increased N use efficiency for microbial protein synthesis and decreased plasma urea and urinary N excretion relative to animals fed H diet. The use of combined diets led to consumption of nutrients similar to a TMR diet, without reducing nutrient use and could improve N utilization compared with the herbage-only diet. 650 $aForrajes 653 $aFEEDING SYSTEMS 653 $aMEZCLA TOTAL RACION (TMR) 653 $aMICROBIAL PROTEIN SYNTHESIS 653 $aMIXED DIETS 653 $aPARTIAL MIXED RATION 653 $aPASTURE 653 $aUTILIZACIÓN DE NUTRIENTES 700 1 $aCAJARVILLE, C. 700 1 $aMENDOZA, A. 700 1 $aREPETTO, J. 773 $tAnimal$gv. 11 n.4, p 616-624, 2017.
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
06/05/2021 |
Actualizado : |
07/05/2021 |
Tipo de producción científica : |
Abstracts/Resúmenes |
Autor : |
MARTÍNEZ, R.; STIRLING, S.; WALLER, A.; ERRECARTE, E.; PLA, M.; MENDOZA, A.; FARIÑA, S. |
Afiliación : |
ROCÍO MARTÍNEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARÍA SOFÍA STIRLING SANTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; ALICIA CAROLINA WALLER BARCENA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EMILIANO ERRECARTE ALVARIÑO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARCELO PLA TEJERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SANTIAGO FARIÑA, INIA (Instituto Nacional de Investigación Agropecuaria). |
Título : |
Sistemas lecheros de alta producción con estrategias de alimentación y genotipos animales contrastantes.[High producing dairy systems with different feeding strategies and animal genotype]. |
Complemento del título : |
SP 44. |
Fecha de publicación : |
2018 |
Fuente / Imprenta : |
In: Congreso Argentino de Producción Animal, 41°, 16-19 oct. 2018. Mar del Plata, (Argentina): Asociación Argentina de Producción Animal (AAPA). |
Páginas : |
p.134. |
Serie : |
(Revista Argentina de Producción Animal; 2018; 38; Suppl.1). |
Idioma : |
Español |
Contenido : |
Conclusiones:
Los 4 sistemas alcanzaron el objetivo de producción de sólidos propuesto. En forma preliminar se puede decir que el
genotipo CH, bajo ambas estrategias de alimentación, superó al G. Con respecto a la estrategia de alimentación,
podemos ver que una basada en el crecimiento del pasto permite aumentar la cosecha por vaca y por hectárea, pero
se ve altamente afectada por variaciones en la TC. |
Palabras claves : |
FARMLETS; SISTEMAS LECHEROS. |
Thesagro : |
ALIMENTACION ANIMAL; SISTEMAS PRODUCTIVOS. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15540/1/Revista-Argentina-de-Produccion-Animal-2018.v.38.supl.1.SP-44.pdf
|
Marc : |
LEADER 01384nam a2200253 a 4500 001 1062025 005 2021-05-07 008 2018 bl uuuu u01u1 u #d 100 1 $aMARTÍNEZ, R. 245 $aSistemas lecheros de alta producción con estrategias de alimentación y genotipos animales contrastantes.[High producing dairy systems with different feeding strategies and animal genotype].$h[electronic resource] 260 $aIn: Congreso Argentino de Producción Animal, 41°, 16-19 oct. 2018. Mar del Plata, (Argentina): Asociación Argentina de Producción Animal (AAPA).$c2018 300 $ap.134. 490 $a(Revista Argentina de Producción Animal; 2018; 38; Suppl.1). 520 $aConclusiones: Los 4 sistemas alcanzaron el objetivo de producción de sólidos propuesto. En forma preliminar se puede decir que el genotipo CH, bajo ambas estrategias de alimentación, superó al G. Con respecto a la estrategia de alimentación, podemos ver que una basada en el crecimiento del pasto permite aumentar la cosecha por vaca y por hectárea, pero se ve altamente afectada por variaciones en la TC. 650 $aALIMENTACION ANIMAL 650 $aSISTEMAS PRODUCTIVOS 653 $aFARMLETS 653 $aSISTEMAS LECHEROS 700 1 $aSTIRLING, S. 700 1 $aWALLER, A. 700 1 $aERRECARTE, E. 700 1 $aPLA, M. 700 1 $aMENDOZA, A. 700 1 $aFARIÑA, S.
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