Faecal particle-size distribution from ewes fed grass silages harvested at different stages of maturity

Alireza Jalali; Peder Nørgaard; E. Nadeau; A. Arnesson; Martin Riis Weisbjerg

Faecal particle-size distribution from ewes fed grass silages harvested at different stages of maturity

Alireza Jalali, Peder Nørgaard, E. Nadeau, A. Arnesson, Martin Riis Weisbjerg

Abstract

The aim of this experiment was to study the effect of maturity stage of grass at harvest on particle size in faeces from ewes fed grass silage ad libitum. Eighteen pregnant Swedish ewes bearing two foetuses were given one of three treatments as their only feed. The treatments were early (ECS), medium (MCS) or late (LCS) cut grass silage. The ECS, MCS and LCS silages contained 449, 578, and 634 g NDF kg^-1 and 166, 111 and 81 g crude protein kg^-1 DM, respectively. The in situ rumen indigestible NDF (INDF) was 77, 164 and 268 g kg^-1 of NDF; the degradation rate of digestible NDF (k_dDNDF) was 64, 47 and 44 g kg^-1 h^-1 and DM intake was 2.5, 2.1 and 1.5 kg d^-1 for ECS, MCS and LCS silage, respectively. Faeces samples were collected during four days, washed in nylon bags, freeze dried and sieved into six sieving fractions; bottom bowl (B), 0.106 (C), 0.212 (D), 0.5 (S), 1.0 (M) and 2.36 (O) mm pore size. The proportions of particles in the B, C, D, S and O fractions were affected by cutting time of the silaage (P < 0.003). In conclusion, stage of maturity at harvest strongly affects the distribution of particle size in faeces from ewes fed grass silages.

Original language	English
Title of host publication	Biodiversity and animal feed : future challenges for grassland production
Editors	A. Hopkins, T. Gustafsson, J. Bertilsson, G. Dalin, N. Nilsdotter-Linde, E. Spörndly
Number of pages	3
Publisher	Sveriges Lantbruksuniversitet (SLU)
Publication date	2008
Pages	822-824
Publication status	Published - 2008
Event	EGF General Meeting on "Biodiversity and animal feed - future challenges for grassland production" - Uppsala, Sweden Duration: 9 Jun 2008 → 11 Jun 2008 Conference number: 22

Conference

Conference	EGF General Meeting on "Biodiversity and animal feed - future challenges for grassland production"
Number	22
Country/Territory	Sweden
City	Uppsala
Period	09/06/2008 → 11/06/2008

Series	Grassland Science in Europe
Volume	13

Cite this

Jalali, A., Nørgaard, P., Nadeau, E., Arnesson, A., & Weisbjerg, M. R. (2008). Faecal particle-size distribution from ewes fed grass silages harvested at different stages of maturity. In A. Hopkins, T. Gustafsson, J. Bertilsson, G. Dalin, N. Nilsdotter-Linde, & E. Spörndly (Eds.), Biodiversity and animal feed: future challenges for grassland production (pp. 822-824). Sveriges Lantbruksuniversitet (SLU). Grassland Science in Europe Vol. 13

Faecal particle-size distribution from ewes fed grass silages harvested at different stages of maturity. / Jalali, Alireza; Nørgaard, Peder; Nadeau, E. et al.

Biodiversity and animal feed: future challenges for grassland production. ed. / A. Hopkins; T. Gustafsson; J. Bertilsson; G. Dalin; N. Nilsdotter-Linde; E. Spörndly. Sveriges Lantbruksuniversitet (SLU), 2008. p. 822-824 (Grassland Science in Europe, Vol. 13).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Jalali, A, Nørgaard, P, Nadeau, E, Arnesson, A & Weisbjerg, MR 2008, Faecal particle-size distribution from ewes fed grass silages harvested at different stages of maturity. in A Hopkins, T Gustafsson, J Bertilsson, G Dalin, N Nilsdotter-Linde & E Spörndly (eds), Biodiversity and animal feed: future challenges for grassland production. Sveriges Lantbruksuniversitet (SLU), Grassland Science in Europe, vol. 13, pp. 822-824, EGF General Meeting on "Biodiversity and animal feed - future challenges for grassland production", Uppsala, Sweden, 09/06/2008.

Jalali A, Nørgaard P, Nadeau E, Arnesson A, Weisbjerg MR. Faecal particle-size distribution from ewes fed grass silages harvested at different stages of maturity. In Hopkins A, Gustafsson T, Bertilsson J, Dalin G, Nilsdotter-Linde N, Spörndly E, editors, Biodiversity and animal feed: future challenges for grassland production. Sveriges Lantbruksuniversitet (SLU). 2008. p. 822-824. (Grassland Science in Europe, Vol. 13).

Jalali, Alireza ; Nørgaard, Peder ; Nadeau, E. et al. / Faecal particle-size distribution from ewes fed grass silages harvested at different stages of maturity. Biodiversity and animal feed: future challenges for grassland production. editor / A. Hopkins ; T. Gustafsson ; J. Bertilsson ; G. Dalin ; N. Nilsdotter-Linde ; E. Spörndly. Sveriges Lantbruksuniversitet (SLU), 2008. pp. 822-824 (Grassland Science in Europe, Vol. 13).

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abstract = "The aim of this experiment was to study the effect of maturity stage of grass at harvest on particle size in faeces from ewes fed grass silage ad libitum. Eighteen pregnant Swedish ewes bearing two foetuses were given one of three treatments as their only feed. The treatments were early (ECS), medium (MCS) or late (LCS) cut grass silage. The ECS, MCS and LCS silages contained 449, 578, and 634 g NDF kg-1 and 166, 111 and 81 g crude protein kg-1 DM, respectively. The in situ rumen indigestible NDF (INDF) was 77, 164 and 268 g kg-1 of NDF; the degradation rate of digestible NDF (kdDNDF) was 64, 47 and 44 g kg-1 h-1 and DM intake was 2.5, 2.1 and 1.5 kg d-1 for ECS, MCS and LCS silage, respectively. Faeces samples were collected during four days, washed in nylon bags, freeze dried and sieved into six sieving fractions; bottom bowl (B), 0.106 (C), 0.212 (D), 0.5 (S), 1.0 (M) and 2.36 (O) mm pore size. The proportions of particles in the B, C, D, S and O fractions were affected by cutting time of the silaage (P < 0.003). In conclusion, stage of maturity at harvest strongly affects the distribution of particle size in faeces from ewes fed grass silages.",

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T1 - Faecal particle-size distribution from ewes fed grass silages harvested at different stages of maturity

AU - Jalali, Alireza

AU - Nørgaard, Peder

AU - Nadeau, E.

AU - Arnesson, A.

AU - Weisbjerg, Martin Riis

N1 - Conference code: 22

PY - 2008

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N2 - The aim of this experiment was to study the effect of maturity stage of grass at harvest on particle size in faeces from ewes fed grass silage ad libitum. Eighteen pregnant Swedish ewes bearing two foetuses were given one of three treatments as their only feed. The treatments were early (ECS), medium (MCS) or late (LCS) cut grass silage. The ECS, MCS and LCS silages contained 449, 578, and 634 g NDF kg-1 and 166, 111 and 81 g crude protein kg-1 DM, respectively. The in situ rumen indigestible NDF (INDF) was 77, 164 and 268 g kg-1 of NDF; the degradation rate of digestible NDF (kdDNDF) was 64, 47 and 44 g kg-1 h-1 and DM intake was 2.5, 2.1 and 1.5 kg d-1 for ECS, MCS and LCS silage, respectively. Faeces samples were collected during four days, washed in nylon bags, freeze dried and sieved into six sieving fractions; bottom bowl (B), 0.106 (C), 0.212 (D), 0.5 (S), 1.0 (M) and 2.36 (O) mm pore size. The proportions of particles in the B, C, D, S and O fractions were affected by cutting time of the silaage (P < 0.003). In conclusion, stage of maturity at harvest strongly affects the distribution of particle size in faeces from ewes fed grass silages.

AB - The aim of this experiment was to study the effect of maturity stage of grass at harvest on particle size in faeces from ewes fed grass silage ad libitum. Eighteen pregnant Swedish ewes bearing two foetuses were given one of three treatments as their only feed. The treatments were early (ECS), medium (MCS) or late (LCS) cut grass silage. The ECS, MCS and LCS silages contained 449, 578, and 634 g NDF kg-1 and 166, 111 and 81 g crude protein kg-1 DM, respectively. The in situ rumen indigestible NDF (INDF) was 77, 164 and 268 g kg-1 of NDF; the degradation rate of digestible NDF (kdDNDF) was 64, 47 and 44 g kg-1 h-1 and DM intake was 2.5, 2.1 and 1.5 kg d-1 for ECS, MCS and LCS silage, respectively. Faeces samples were collected during four days, washed in nylon bags, freeze dried and sieved into six sieving fractions; bottom bowl (B), 0.106 (C), 0.212 (D), 0.5 (S), 1.0 (M) and 2.36 (O) mm pore size. The proportions of particles in the B, C, D, S and O fractions were affected by cutting time of the silaage (P < 0.003). In conclusion, stage of maturity at harvest strongly affects the distribution of particle size in faeces from ewes fed grass silages.

M3 - Article in proceedings

T3 - Grassland Science in Europe

SP - 822

EP - 824

BT - Biodiversity and animal feed

A2 - Hopkins, A.

A2 - Gustafsson, T.

A2 - Bertilsson, J.

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A2 - Nilsdotter-Linde, N.

A2 - Spörndly, E.

PB - Sveriges Lantbruksuniversitet (SLU)

T2 - EGF General Meeting on "Biodiversity and animal feed - future challenges for grassland production"

Y2 - 9 June 2008 through 11 June 2008

ER -

Faecal particle-size distribution from ewes fed grass silages harvested at different stages of maturity

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