Diet digestibility and performance of dairy cows supplemented with live yeast

Dietary yeast supplementation may improve the digestive efficiency of ruminants, but responses depend on the yeast strain and the diet composition. Corn silage and citrus pulp are usual carbohydrate sources for dairy cows in southeast Brazil. This study evaluated the supplementation of dairy cows fedding on corn silage-citrus pulp-based diets with Saccharomyces cerevisiae CNCM I-1077 (Lallemand SAS, Toulouse, France). Twenty multiparous, midlactation Holstein cows were assigned to two treatments in crossover design. Treatments were: live yeast on oyster meal capable of supplying a daily minimum of 1 × 10(10) CFU per cow or oyster meal top-dressed at 10 g to the morning meal. Diet contained (% of dry matter): 16.8% crude protein, 30.9% neutral detergent fiber, 43.9% corn silage, 2% tifton hay, 14.4% steam flaked corn, 16.9% citrus pulp and 21.7% soybean meal. Yeast supplementation increased daily yields of milk (29.4 vs. 28.5 kg, p = 0.11), protein (0.939 vs. 0.908 kg, p = 0.05), and lactose (1.294 vs. 1.241 kg, p = 0.06), but did not affect milk fat contents (p = 0.59). Daily dry matter intake was 21.4 with yeast and 20.7 kg for the control (p = 0.11). Total tract apparent digestibility of the neutral detergent fiber was 48.1% with yeast and 43.2% for the control (p = 0.08). There was a trend for increased intake of digestible organic matter with yeast supplementation (p = 0.07). The positive milk protein yield response to yeast supplementation may have resulted from the increased fiber digestibility, but the response mechanism could not be elucidated.

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Main Authors: Bitencourt,Luciene Lignani, Silva,José Ricardo Martins, Oliveira,Bruno Menezes Lopes de, Dias Júnior,Gilson Sebastião, Lopes,Fernanda, Siécola Júnior,Sancho, Zacaroni,Ozana de Fátima, Pereira,Marcos Neves
Format: Digital revista
Language:English
Published: Escola Superior de Agricultura "Luiz de Queiroz" 2011
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000300005
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spelling oai:scielo:S0103-901620110003000052011-07-11Diet digestibility and performance of dairy cows supplemented with live yeastBitencourt,Luciene LignaniSilva,José Ricardo MartinsOliveira,Bruno Menezes Lopes deDias Júnior,Gilson SebastiãoLopes,FernandaSiécola Júnior,SanchoZacaroni,Ozana de FátimaPereira,Marcos Neves Saccharomyces cerevisiae citrus pulp probiotic Dietary yeast supplementation may improve the digestive efficiency of ruminants, but responses depend on the yeast strain and the diet composition. Corn silage and citrus pulp are usual carbohydrate sources for dairy cows in southeast Brazil. This study evaluated the supplementation of dairy cows fedding on corn silage-citrus pulp-based diets with Saccharomyces cerevisiae CNCM I-1077 (Lallemand SAS, Toulouse, France). Twenty multiparous, midlactation Holstein cows were assigned to two treatments in crossover design. Treatments were: live yeast on oyster meal capable of supplying a daily minimum of 1 × 10(10) CFU per cow or oyster meal top-dressed at 10 g to the morning meal. Diet contained (% of dry matter): 16.8% crude protein, 30.9% neutral detergent fiber, 43.9% corn silage, 2% tifton hay, 14.4% steam flaked corn, 16.9% citrus pulp and 21.7% soybean meal. Yeast supplementation increased daily yields of milk (29.4 vs. 28.5 kg, p = 0.11), protein (0.939 vs. 0.908 kg, p = 0.05), and lactose (1.294 vs. 1.241 kg, p = 0.06), but did not affect milk fat contents (p = 0.59). Daily dry matter intake was 21.4 with yeast and 20.7 kg for the control (p = 0.11). Total tract apparent digestibility of the neutral detergent fiber was 48.1% with yeast and 43.2% for the control (p = 0.08). There was a trend for increased intake of digestible organic matter with yeast supplementation (p = 0.07). The positive milk protein yield response to yeast supplementation may have resulted from the increased fiber digestibility, but the response mechanism could not be elucidated.info:eu-repo/semantics/openAccessEscola Superior de Agricultura "Luiz de Queiroz"Scientia Agricola v.68 n.3 20112011-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000300005en10.1590/S0103-90162011000300005
institution SCIELO
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country Brasil
countrycode BR
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access En linea
databasecode rev-scielo-br
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region America del Sur
libraryname SciELO
language English
format Digital
author Bitencourt,Luciene Lignani
Silva,José Ricardo Martins
Oliveira,Bruno Menezes Lopes de
Dias Júnior,Gilson Sebastião
Lopes,Fernanda
Siécola Júnior,Sancho
Zacaroni,Ozana de Fátima
Pereira,Marcos Neves
spellingShingle Bitencourt,Luciene Lignani
Silva,José Ricardo Martins
Oliveira,Bruno Menezes Lopes de
Dias Júnior,Gilson Sebastião
Lopes,Fernanda
Siécola Júnior,Sancho
Zacaroni,Ozana de Fátima
Pereira,Marcos Neves
Diet digestibility and performance of dairy cows supplemented with live yeast
author_facet Bitencourt,Luciene Lignani
Silva,José Ricardo Martins
Oliveira,Bruno Menezes Lopes de
Dias Júnior,Gilson Sebastião
Lopes,Fernanda
Siécola Júnior,Sancho
Zacaroni,Ozana de Fátima
Pereira,Marcos Neves
author_sort Bitencourt,Luciene Lignani
title Diet digestibility and performance of dairy cows supplemented with live yeast
title_short Diet digestibility and performance of dairy cows supplemented with live yeast
title_full Diet digestibility and performance of dairy cows supplemented with live yeast
title_fullStr Diet digestibility and performance of dairy cows supplemented with live yeast
title_full_unstemmed Diet digestibility and performance of dairy cows supplemented with live yeast
title_sort diet digestibility and performance of dairy cows supplemented with live yeast
description Dietary yeast supplementation may improve the digestive efficiency of ruminants, but responses depend on the yeast strain and the diet composition. Corn silage and citrus pulp are usual carbohydrate sources for dairy cows in southeast Brazil. This study evaluated the supplementation of dairy cows fedding on corn silage-citrus pulp-based diets with Saccharomyces cerevisiae CNCM I-1077 (Lallemand SAS, Toulouse, France). Twenty multiparous, midlactation Holstein cows were assigned to two treatments in crossover design. Treatments were: live yeast on oyster meal capable of supplying a daily minimum of 1 × 10(10) CFU per cow or oyster meal top-dressed at 10 g to the morning meal. Diet contained (% of dry matter): 16.8% crude protein, 30.9% neutral detergent fiber, 43.9% corn silage, 2% tifton hay, 14.4% steam flaked corn, 16.9% citrus pulp and 21.7% soybean meal. Yeast supplementation increased daily yields of milk (29.4 vs. 28.5 kg, p = 0.11), protein (0.939 vs. 0.908 kg, p = 0.05), and lactose (1.294 vs. 1.241 kg, p = 0.06), but did not affect milk fat contents (p = 0.59). Daily dry matter intake was 21.4 with yeast and 20.7 kg for the control (p = 0.11). Total tract apparent digestibility of the neutral detergent fiber was 48.1% with yeast and 43.2% for the control (p = 0.08). There was a trend for increased intake of digestible organic matter with yeast supplementation (p = 0.07). The positive milk protein yield response to yeast supplementation may have resulted from the increased fiber digestibility, but the response mechanism could not be elucidated.
publisher Escola Superior de Agricultura "Luiz de Queiroz"
publishDate 2011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000300005
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