0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

The influence of supplemental fat on rumen volatile fatty acid profle, ammonia and pH levels in sheep fed a standard diet

A. Potkański 1,  
J. Kowalczyk 2,  
A. Cieślak 1,  
M. Czauderna 2,  
A. Gubała 1,  
 
1
August Cieszkowski Agricultural University, Department of Animal Nutrition and Feed Management, Wołyńska 33, 60-637 Poznań, Poland
2
The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
3
Berg+Schmidt Polska, Potworowskiego 3/6, 60-212 Poznań, Poland
J. Anim. Feed Sci. 2002;11(4):577–587
Publish date: 2002-10-11
KEYWORDS
ABSTRACT
The effect of different types of fat supplementation on basic rumen parameters was estimated on three milking sheep fitted with rumen cannulae in a 3x3 Latin square design consisting of three experimental diets differing in the percentage of fat supplement. The basic ration for the control group consisted of meadow hay and concentrate (60:40) and was supplemented for experimental groups with rape seed oil, soyabean oil, linseed oil, tallow, Bergafat® or fish oil at a level of 0 (control), 4, and 6% in dry matter. Samples of rumen fluid were analyzed for volatile fatty acids (VFAs), ammonia (N-NH3) and pH. The acetic acid level increased significantly (P<0.05) when 4 and 6% of soyabean oil was added to the ration. Similarly, addition of linseed oil increased (P<0.05) the level of acetic acid in experimental groups. A significant (P<0.05) increase in the acetic acid level was observed when 6% Bergafat® was added, whereas the level of this acid was reduced when 6% fish oil was added to the diet. The butyric acid level decreased significantly (P<0.05) when the diet contained 6% linseed oil, and there was a decrease (P<0.05) in isobutyric acid in both groups receiving fish oil. A slight but statistically significant (P<0.05) increase in the isobutyric acid level when the diet was supplemented with 4% soyabean oil was also observed. The addition of rape seed oil and tallow had no influence on fatty acid levels in the experimental groups. There were no main treatment effects on daily mean pH and ammonia concentration in the rumen. With all fat additives, except for fish oil, the ruminal N-NH3 concentration was lower in both experimental groups, but the differences were not significant. Only the addition of 4% fish oil to the ration was accompanied by a significant (P<0.05) increase in the ammonia level.
 
CITATIONS (7):
1. Rumen antimethanogenic effect of Saponaria officinalis L. phytochemicals in vitro
A. CIESLAK, P. ZMORA, A. STOCHMAL, L. PECIO, W. OLESZEK, E. PERS-KAMCZYC, J. SZCZECHOWIAK, A. NOWAK, M. SZUMACHER-STRABEL
The Journal of Agricultural Science
2. Rumen fermentation pattern, lipid metabolism and the microbial community of sheep fed a high-concentrate diet supplemented with a mix of medicinal plants
M. Wencelová, Z. Váradyová, K. Mihaliková, K. Čobanová, I. Plachá, P. Pristaš, D. Jalč, S. Kišidayová
Small Ruminant Research
3. Effect ofMentha piperitaL. onin vitrorumen methanogenesis and fermentation
P. Zmora, A. Cieslak, E. Pers-Kamczyc, A. Nowak, J. Szczechowiak, M. Szumacher-Strabel
Acta Agriculturae Scandinavica, Section A - Animal Science
4. Effects of tannins source (Vaccinium vitis idaea L.) on rumen microbial fermentation in vivo
Adam Cieslak, Pawel Zmora, Emilia Pers-Kamczyc, Malgorzata Szumacher-Strabel
Animal Feed Science and Technology
5. Effect of high-oleic-acid soybeans on production performance, milk fatty acid composition, and enteric methane emission in dairy cows
J.C. Lopes, M.T. Harper, F. Giallongo, J. Oh, L. Smith, A.M. Ortega-Perez, S.A. Harper, A. Melgar, D.M. Kniffen, R.A. Fabin, A.N. Hristov
Journal of Dairy Science
6. Preliminaryin vitrostudy on the effect of xanthohumol on rumen methanogenesis
Pawel Zmora, Adam Cieslak, Dariusz Jedrejek, Anna Stochmal, Emilia Pers-Kamczyc, Wieslaw Oleszek, Agnieszka Nowak, Joanna Szczechowiak, Dorota Lechniak, Malgorzata Szumacher-Strabel
Archives of Animal Nutrition
7. Rumen fermentation, methane concentration and fatty acid proportion in the rumen and milk of dairy cows fed condensed tannin and/or fish-soybean oils blend
J. Szczechowiak, M. Szumacher-Strabel, M. El-Sherbiny, E. Pers-Kamczyc, P. Pawlak, A. Cieslak
Animal Feed Science and Technology
ISSN:1230-1388