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Does feeding dairy cattle with different levels of condensed distillers solubles (Protiwanze®) increase the risk of Sara?
Lessire, Françoise; Rollin, Frédéric
20116th European Congress of Bovine Health Management
 

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Keywords :
Rumen Acidosis; SARA; Dairy Cattle; CDS; Condensed distillers solubles
Abstract :
[en] INTRODUCTION The objective of this study was to evaluate the effects of different levels of Protiwanze® (PW) supplementation, a highly acid (pH = 3.8 ± 0.8) and fermentescible CDS, on ruminal function of dairy cows. MATERIAL AND METHODS PW supplementation was tested in 5 dairy herds (144 cows, DIM: 96 ± 61, daily milk production: 34.69 ± 8.22 L). In Herd 1, TMR was supplemented with 0% or 10% of PW on a dry matter basis for 4 weeks including a 7-day transition period. Each concentration was distributed twice during 2 periods alternatively with the other one, each cow being its own control. PW concentrations were 10 and 15% in Herd 2, 3 and 4. During every period, milk production was measured by the Dairy Herd Improvement and ruminal fluid sampled by a stomach tube (Ruminator®) on 5 cows. Samples were assessed for pH (portable pH meter), redox potential (Methylene blue test) and protozoa (optical microscopy). RESULTS AND CONCLUSION Ruminal pH values ranged between 5.94 and 7.74. Even when a correction factor of 0.5 was applied to take into account possible saliva contamination, only 8 pH samples pleaded for SARA although protozoa and methylene blue tests were within norms and cows clinically normal. No significant correlation between pH value, milk production and fat content could be demonstrated. Ruminal pH did neither significantly differ between the different levels of PW supplementation. In conclusion, in this study, PW could be used in dairy cows TMR at a level as high as 15% without increasing the risk of SARA.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Lessire, Françoise  ;  Université de Liège - ULiège > Département clinique des animaux de production (DCP) > Médecine interne des équidés, des ruminants et des porcs
Rollin, Frédéric ;  Université de Liège - ULiège > Département clinique des animaux de production (DCP) > Médecine interne des équidés, des ruminants et des porcs
Language :
English
Title :
Does feeding dairy cattle with different levels of condensed distillers solubles (Protiwanze®) increase the risk of Sara?
Alternative titles :
[en] Augmenter la supplémentation en CDS dans l'alimentation des vaches laitières augmente-t-il le risque de SARA?
Publication date :
08 September 2011
Event name :
6th European Congress of Bovine Health Management
Event organizer :
European College of bovine Health Management
Event place :
Liège, Belgium
Event date :
7-9 septembre 2011
Audience :
International
Name of the research project :
Valorisation des solubles de blé liquides co-produits lors de la fabrication de bio-éthanol (ProtiWanze®) dans l’alimentation des bovins en Walloni
Funders :
SPW DG03-DGARNE - Service Public de Wallonie. Direction Générale Opérationnelle Agriculture, Ressources naturelles et Environnement [BE]
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since 21 March 2012

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