A sensory additive alters grazing behavior and increases milk response to concentrate supplementation in dairy cows
The aim of this study was to evaluate the effect of a sensory additive, incorporated into a starch - based concentrate, on milk production and composition and grazing behavior in pasture - fed dairy cows. Forty - five Holstein cows were used in 15 incomplete 3×2 Latin squares conducted concurrently...
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| Formato: | Artículo |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2018nannig.pdf LINK AL EDITOR |
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| 008 | 180815t2018 ne |||||o|||| 00| | eng d | ||
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| 022 | |a 1871-1413 | ||
| 024 | |a 10.1016/j.livsci.2018.04.014 | ||
| 040 | |a AR-BaUFA |c AR-BaUFA | ||
| 245 | 1 | 0 | |a A sensory additive alters grazing behavior and increases milk response to concentrate supplementation in dairy cows |
| 520 | |a The aim of this study was to evaluate the effect of a sensory additive, incorporated into a starch - based concentrate, on milk production and composition and grazing behavior in pasture - fed dairy cows. Forty - five Holstein cows were used in 15 incomplete 3×2 Latin squares conducted concurrently with 3 treatments and 2 periods of 28 d At the beginning of the study, cows averaged 60 ± 17.1 d in milk, 2.2 ± 1.51 parity, 27.5 ± 4.52 kg/d of milk, and 504 kg ± 61.9 of BW (mean ± SD). Cows were assigned to the 15 squares by parity, milk yield, d in milk, and BW and within squares randomly assigned to 3 concentrate treatments that were 1 kg/d of a mineral concentrate (MC), 7 kg/d of a starch - based concentrate (CC), and 7 kg/d of CC supplemented with 30 g/d of a sensory additive (PEC; ProEfficient, Lucta SA, Barcelona, Spain). Cows grazed a perennial ryegrass pasture (Lolium perenne L.) offered at a daily allowance of 30 kg of DM per cow. Supplementation with the starch-based concentrate increased (P less than 0.05) milk yield 4.4 kg/d compared with MC (24.3 .vs. 28.7 kg/d), whereas cows supplemented with PEC produced more (P less than 0.05) milk and energy - corrected milk than CC cows (0.6 and 1.6 kg/d, respectively). As a result, milk response to concentrate supplementation (kg milk/kg concentrate) was improved by PEC. Additionally, PEC increased (Pless than 0.05) milk protein percentage (3.74 vs. 3.43%) and yield (1.08 vs. 0.98 kg/d) compared with CC. Concentrate supplementation increased (P less than 0.05) total DMI, but reduced (P less than 0.05) total daily grazing time (GT) and biting rate (BR) in the evening. Compared with CC, PEC did not affect (P greater than 0.05) total and pasture DMI but increased (P less than 0.05) GT during the first 2 h after the a.m. milking as well as BR and ruminating time during the diurnal hours. The plasma concentration of active ghrelin was similarly reduced (P ess than 0.05) by CC and PEC after 2 h of grazing. In summary, supplementation of a starch - based concentrate with a sensory additive improved milk and protein responses of dairy cows grazing a ryegrass pasture. | ||
| 650 | |2 Agrovoc |9 26 | ||
| 653 | |a DAIRY COWS | ||
| 653 | |a GRAZING BEHAVIOR | ||
| 653 | |a SUPPLEMENTATION | ||
| 653 | |a SENSORY ADDITIVE | ||
| 700 | 1 | |a Nannig, P. |u Universidad Austral de Chile. Instituto de Ciencia Animal. Valdivia, Chile. |9 67735 | |
| 700 | 1 | |a Pulido, R. G. |u Universidad Austral de Chile. Instituto de Ciencia Animal. Valdivia, Chile. |9 67736 | |
| 700 | 1 | |a Ruiz Albarrán, M. |u Universidad Austral de Chile. Instituto de Ciencia Animal. Valdivia, Chile. |9 67737 | |
| 700 | 1 | |a Bargo, Fernando |u Universidad de Buenos Aires. Facultad de Agronomía. Escuela para Graduados Ing. Agr. Alberto Soriano (EPG). Buenos Aires, Argentina. |u Lucta SA. Barcelona, Spain. |9 10622 | |
| 700 | 1 | |a Tedó, Gemma |u Lucta SA. Barcelona, Spain. |9 70268 | |
| 700 | 1 | |9 51111 |a Palladino, Rafael Alejandro |u Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigaciones en Producción Animal (INPA). Buenos Aires, Argentina. |u CONICET - Universidad de Buenos Aires. Instituto de Investigaciones en Producción Animal (INPA). Buenos Aires, Argentina. |u Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina. | |
| 700 | 1 | |a Cussen, R. |u BestFed. Osorno, Chile. |9 67739 | |
| 700 | 1 | |a Acuña, J. |u BestFed. Osorno, Chile. |9 67746 | |
| 700 | 1 | |a Sheahan, A. J. |u DairyNZ Ltd. Hamilton, New Zealand |9 67807 | |
| 700 | 1 | |a Roche, J. R. |u Universidad Austral de Chile. Instituto de Ciencia Animal. Valdivia, Chile. |9 41896 | |
| 700 | 1 | |9 10603 |a Ipharraguerre, Ignacio Rodolfo |u Lucta SA. Barcelona, Spain. |u University of Kiel. Institute of Human Nutrition and Food Science. Kiel, Germany | |
| 773 | 0 | |t Livestock Science |g Vol.214 (2018), p.106-111, tbls. | |
| 856 | |f 2018nannig |i en reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2018nannig.pdf |x ARTI201808 | ||
| 856 | |z LINK AL EDITOR |u http://www.elsevier.com | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||