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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó. |
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Fecha : |
15/10/2014 |
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Actualizado : |
12/05/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MONTOSSI, F.; HODGSON, J.; MORRIS, S.T. |
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Afiliación : |
FABIO MARCELO MONTOSSI PORCHILE, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Herbage intake, ingestive behaviour and diet selection, and effects of condensed tannins upon body and wool growth in lambs grazing Lolium perenne and Holcus lanatus swards in summer. |
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Fecha de publicación : |
1997 |
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Fuente / Imprenta : |
New Zealand Journal of Agricultural Research, 1997, v.40, no.4, p.449-461. FREE ACCESS |
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ISSN : |
0028-8233 |
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DOI : |
10.1080/00288233.1997.9513267 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 14 Nov 1996 // Accepted 11 Aug 1997 // Published online: 17 Mar 2010. |
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Contenido : |
ABSTRACT.
A comparative study was undertaken in New Zealand to investigate the effects of low concentrations of condensed tannins (CT) on diet selection, herbage intake, and performance in lambs grazing on four 0.2 ha paddocks each of perennial ryegrass (Lolium perenne) or Yorkshire fog (Holcus lanatus) with less than 10% white clover (Trifolium repens), continuously grazed at a constant height of approximately 6 cm from December 1992 to March 1993. The effects of CT on rumen metabolism and animal production were assessed by twice daily oral administration of polyethylene glycol (PEG; MW 4000) to half of the lambs on each sward. Bite weight was greater for Yorkshire fog swards than for ryegrass swards during January (111 vs 85 ± 5 mg OM/bite, P < 0.01), but not in December. In both December and January, grazing, ruminating, and idling times were similar between swards, while in January, the rate of biting in ryegrass swards was higher than in Yorkshire fog swards (64 vs 61 ± 1 bites/min, P < 0.05). The organic matter digestibility (OMD) of the herbage selected was higher in ryegrass swards in December (81 vs 78 ± 0.04 %, P < 0.01), but not in January (80 vs 79 ± 0.05 %). The herbage intake achieved by lambs grazing ryegrass swards was 23% higher than that achieved on Yorkshire fog swards in December (990 vs 800 ± 36 g OM/lamb/day, P < 0.05) whereas, in January, herbage intakes did not differ significantly. Lambs grazing on ryegrass swards had higher clean wool growth (1147 vs 1085 ± 15 μg/cm2 per day, P < 0.10) and carcass weight (17.5 vs 16.3 ± 0.22 kg, P < 0.05) than lambs grazing on Yorkshire fog swards. The stocking rate maintained on ryegrass plots was 25% greater than on Yorkshire fog plots. Low concentrations of CT were recorded in the diets of sheep on ryegrass and Yorkshire fog swards (≤ 0.2% on a DM basis). The low levels of CT had no significant effects on diet selection, herbage intake, grazing behaviour patterns, or lamb performance. However, the lambs grazing on Yorkshire fog swards showed small and nonpersistent responses to CT in terms of wool growth and liveweight gain. The results of this study indicate that: (i) under high fertility conditions and intensive management, perennial ryegrass/white clover swards appear to have higher feeding value than Yorkshire fog/white clover swards for lamb production and (ii) the low CT concentrations (≤ 0.2% in the DM) observed in both swards did not influence lamb performance significantly. MenosABSTRACT.
A comparative study was undertaken in New Zealand to investigate the effects of low concentrations of condensed tannins (CT) on diet selection, herbage intake, and performance in lambs grazing on four 0.2 ha paddocks each of perennial ryegrass (Lolium perenne) or Yorkshire fog (Holcus lanatus) with less than 10% white clover (Trifolium repens), continuously grazed at a constant height of approximately 6 cm from December 1992 to March 1993. The effects of CT on rumen metabolism and animal production were assessed by twice daily oral administration of polyethylene glycol (PEG; MW 4000) to half of the lambs on each sward. Bite weight was greater for Yorkshire fog swards than for ryegrass swards during January (111 vs 85 ± 5 mg OM/bite, P < 0.01), but not in December. In both December and January, grazing, ruminating, and idling times were similar between swards, while in January, the rate of biting in ryegrass swards was higher than in Yorkshire fog swards (64 vs 61 ± 1 bites/min, P < 0.05). The organic matter digestibility (OMD) of the herbage selected was higher in ryegrass swards in December (81 vs 78 ± 0.04 %, P < 0.01), but not in January (80 vs 79 ± 0.05 %). The herbage intake achieved by lambs grazing ryegrass swards was 23% higher than that achieved on Yorkshire fog swards in December (990 vs 800 ± 36 g OM/lamb/day, P < 0.05) whereas, in January, herbage intakes did not differ significantly. Lambs grazing on ryegrass swards had higher clean wool g... Presentar Todo |
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Thesagro : |
ALIMENTACION DE LOS ANIMALES; CORDERO; DIETA ANIMAL; HOLCUS LANATUS. |
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Asunto categoría : |
L02 Alimentación animal |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/3543/1/Montossi-F.-1997.-New-Zeal.Jr.Agr.Res.-v.404-p.449-461.pdf
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Marc : |
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022 $a0028-8233
024 7 $a10.1080/00288233.1997.9513267$2DOI
100 1 $aMONTOSSI, F.
245 $aHerbage intake, ingestive behaviour and diet selection, and effects of condensed tannins upon body and wool growth in lambs grazing Lolium perenne and Holcus lanatus swards in summer.$h[electronic resource]
260 $c1997
500 $aArticle history: Received 14 Nov 1996 // Accepted 11 Aug 1997 // Published online: 17 Mar 2010.
520 $aABSTRACT. A comparative study was undertaken in New Zealand to investigate the effects of low concentrations of condensed tannins (CT) on diet selection, herbage intake, and performance in lambs grazing on four 0.2 ha paddocks each of perennial ryegrass (Lolium perenne) or Yorkshire fog (Holcus lanatus) with less than 10% white clover (Trifolium repens), continuously grazed at a constant height of approximately 6 cm from December 1992 to March 1993. The effects of CT on rumen metabolism and animal production were assessed by twice daily oral administration of polyethylene glycol (PEG; MW 4000) to half of the lambs on each sward. Bite weight was greater for Yorkshire fog swards than for ryegrass swards during January (111 vs 85 ± 5 mg OM/bite, P < 0.01), but not in December. In both December and January, grazing, ruminating, and idling times were similar between swards, while in January, the rate of biting in ryegrass swards was higher than in Yorkshire fog swards (64 vs 61 ± 1 bites/min, P < 0.05). The organic matter digestibility (OMD) of the herbage selected was higher in ryegrass swards in December (81 vs 78 ± 0.04 %, P < 0.01), but not in January (80 vs 79 ± 0.05 %). The herbage intake achieved by lambs grazing ryegrass swards was 23% higher than that achieved on Yorkshire fog swards in December (990 vs 800 ± 36 g OM/lamb/day, P < 0.05) whereas, in January, herbage intakes did not differ significantly. Lambs grazing on ryegrass swards had higher clean wool growth (1147 vs 1085 ± 15 μg/cm2 per day, P < 0.10) and carcass weight (17.5 vs 16.3 ± 0.22 kg, P < 0.05) than lambs grazing on Yorkshire fog swards. The stocking rate maintained on ryegrass plots was 25% greater than on Yorkshire fog plots. Low concentrations of CT were recorded in the diets of sheep on ryegrass and Yorkshire fog swards (≤ 0.2% on a DM basis). The low levels of CT had no significant effects on diet selection, herbage intake, grazing behaviour patterns, or lamb performance. However, the lambs grazing on Yorkshire fog swards showed small and nonpersistent responses to CT in terms of wool growth and liveweight gain. The results of this study indicate that: (i) under high fertility conditions and intensive management, perennial ryegrass/white clover swards appear to have higher feeding value than Yorkshire fog/white clover swards for lamb production and (ii) the low CT concentrations (≤ 0.2% in the DM) observed in both swards did not influence lamb performance significantly.
650 $aALIMENTACION DE LOS ANIMALES
650 $aCORDERO
650 $aDIETA ANIMAL
650 $aHOLCUS LANATUS
700 1 $aHODGSON, J.
700 1 $aMORRIS, S.T.
773 $tNew Zealand Journal of Agricultural Research, 1997$gv.40, no.4, p.449-461. FREE ACCESS
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INIA Las Brujas (LB) |
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| Registros recuperados : 9 | |
| 6. |  | MONTOSSI, F.; HU, Y.; HODGSON, J.; MORRIS, S. Estudios comparativos de consumo de forraje, comportamiento animal y selección de dieta en pasturas de Holcus lanatus y raigrás perenne pastoreadas por ovinos 4. Manejo del pastoreo como estrategia de sostenibilidad In: Berretta, E.J. (Ed.). Reunión del Grupo Técnico Regional del Cono Sur en mejoramiento y utilización de los recursos forrajeros del área tropical y subtropical, Grupos Campos, 14., 1994, Termas del Arapey, Salto, Uruguay. Anales. Montevideo (Uruguay): INIA, 1998. p. 149-156 (INIA Serie Técnica ; 94)| Tipo: Capítulo en Libro Técnico-Científico |
| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
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| 8. | | MONTOSSI, F.; HODGSON, J.; MORRIS, S.T.; RISSO, D.; GORDON, I.L. A comparative study of herbage intake, ingestive behaviour and diet selection, and effects of condensed tannins upon body and wool growth in lambs grazing Yorkshire fog (Holcus lanatus) and annual ryegrass (Lolium multiflorum) dominant swards. Journal of Agricultural Science, 2001, v. 136, no. 2, p. 241-251. DOI: https://doi.org/10.1017/S0021859601008668 Article history: Revised MS received 19 April 2000 // .Published online by Cambridge University Press 25 April 2001.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Tacuarembó. |
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| 9. | | ALLEN, V.G.; BATELLO, C.; BERRETTA, E.J.; HODGSON, J.; KOTHMANN, M.; LI, X.; MCLVOR, J.; MILNE, J.; MORRIS, C.; PEETERS, A.; SANDERSON, M. An international terminology for grazing lands and grazing animals. Grass and Forage Science, 2011, v. 66, p. 2-28 Article history: Received 22 September 2010; revised 11 November 2010.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : A - 2 |
| Biblioteca(s): INIA Tacuarembó. |
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| Registros recuperados : 9 | |
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