scholarly journals Effect of Feeding Cold-Pressed Sunflower Cake on Ruminal Fermentation, Lipid Metabolism and Bacterial Community in Dairy Cows

Animals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 755 ◽  
Author(s):  
Zubiria ◽  
Garcia-Rodriguez ◽  
Atxaerandio ◽  
Ruiz ◽  
Benhissi ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Bacterial Community ◽  
Dairy Cows ◽  
Experimental Period ◽  
Diversity Indices ◽  
Ruminal Fermentation ◽  
Purine Derivative ◽  
Sunflower Cake ◽  
Cold Pressed ◽  
Effect Of Feeding

Cold-pressed sunflower cake (CPSC), by-product of oil-manufacturing, has high crude fat and linoleic acid concentrations, being a promising supplement to modulate rumen fatty acid (FA) profile. This trial studied CPSC effects on ruminal fermentation, biohydrogenation and the bacterial community in dairy cows. Ten cows were used in a crossover design with two experimental diets and fed during two 63-day periods. The cows were group fed forage ad libitum and the concentrate individually. The concentrates, control and CPSC, were isoenergetic, isoproteic and isofat. The ruminal samples collected at the end of each experimental period were analyzed for short-chain fatty acid, FA and DNA sequencing. CPSC decreased butyrate molar proportion (4%, p = 0.005). CPSC decreased C16:0 (28%, p < 0.001) and increased C18:0 (14%, p < 0.001) and total monounsaturated FA, especially C18:1 trans-11 (13%, p = 0.023). The total purine derivative excretion tended to be greater (5%, p = 0.05) with CPSC, resulting in a 6% greater daily microbial N flow. CPSC did not affect the diversity indices but increased the relative abundances of Treponema and Coprococcus, and decreased Enterococcus, Ruminococcus and Succinivibrio. In conclusion, the changes in ruminal fermentation and the FA profile were not associated with changes in microbial diversity or abundance of dominant populations, however, they might be associated with less abundant genera.

scholarly journals Rubber seed oil and flaxseed oil supplementation alter digestion, ruminal fermentation and rumen fatty acid profile of dairy cows

animal ◽  
2019 ◽  
Vol 13 (12) ◽  
pp. 2811-2820 ◽  
Author(s):  
Y. Pi ◽  
L. Ma ◽  
K.M. Pierce ◽  
H.R. Wang ◽  
J.C. Xu ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Dairy Cows ◽  
Fatty Acid Profile ◽  
Seed Oil ◽  
Flaxseed Oil ◽  
Ruminal Fermentation ◽  
Rubber Seed Oil ◽  
Rubber Seed

Effect of dietary soybean or sunflower seeds on milk production, milk fatty acid profile and yield of conjugated linoleic acid

2004 ◽  
Vol 84 (1) ◽  
pp. 113-124 ◽  
Author(s):  
O. Dayani ◽  
G. Ghorbani ◽  
T. Entz ◽  
C. M. Ross ◽  
M. A. Shah ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Linoleic Acid ◽  
Dairy Cows ◽  
Conjugated Linoleic Acid ◽  
Sunflower Seed ◽  
Dry Matter ◽  
Experimental Period ◽  
Barley Grain ◽  
Sunflower Seeds ◽  
Barley Silage

Eight cows in mid-lactation were used to determine the effects of feeding diets containing soybeans (SBS) or sunflower seed (SFS) on conjugated linoleic acid (CLA) yield and concentration in milk during two 3-wk periods. All cows were fed a standard pre-trial diet for 2 wk, before assignment to treatment diets in both periods of the 2 × 2 cross-over design used in the study. The two treatment diets contained on a dry matter (DM) basis: (1) SBS: 20% barley silage, 34.7% barley grain, 30% alfalfa cube, 13% crushed soybean seed and 0.36% sunflower oil, and (2) SFS: 17% barley silage, 34.6% barley grain, 40% sunflower seed incorporated into alfalfa cubes (cubes comprised 18% whole sunflower seed and 82% alfalfa hay), and 6.5% heat-treated soybean meal. The ingredients in the two diets were adjusted so that they would provide similar levels of energy (1.5 MCal kg-1) and have similar nutrient composition with regard to protein (16.7%), ether extract (5.2%) and fibre components (41%). Milk samples were collected, on 2 d prior to initiation of treatment diets and on days 6, 7, 13, 1 4, 20 and 21 of each experimental period. Cholecystokinin and insulin concentrations in blood samples collected at the start and end of each experimental period indicated no significant differences. Dry matter and net energy intake of cows fed the SBS and SFS were 23.3 and 21.4 ± 0.9 kg d-1; 34.4 and 31.6 ± 1.4 Mcal d-1, respectively, and in vitro volatile fatty acid concentration after 24 h of incubation was 123.3 and 114.7 ± 1.3 mM, respectively, and lower (P < 0.05) for the SFS diet. Milk, milk fat, protein and lactose yields from cows fed the SBS and SFS diets were similar (32.9 and 32.0 ± 2.4; 1.10 and 0.97 ± 0.07; 1.05 and 1.00 ± 0.05; 1.46 and 1.39 ± 0.12, respectively), but the CLA cis-9, trans-11 concentrations in the milk from cows fed the SBS and SFS diets were 4.05 and 7.28 mg g-1 of lipid and resulted in 66% higher (P < 0.01) CLA yield (g d-1) in milk for cows fed the SFS diet. This study confirmed that feeding sunflower seeds as a component of a hay cube increased CLA yield in the milk of dairy cows without affecting yields of other milk components. Key words: Dairy cows, sunflower, soybeans, milk production, conjugated linoleic acid

The effect of feeding protected Methionine on the milk yield and fertility of Friesian dairy cows

1984 ◽  
Vol 1984 ◽  
pp. 126-126
Author(s):  
Bridget Drew ◽  
J A Foulkes ◽  
Jill F B Altman
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Experimental Period ◽  
Treated Group ◽  
West Germany ◽  
Control Group ◽  
The United Kingdom ◽  
Feed Utilisation ◽  
Calving Rate ◽  
Effect Of Feeding

The results of studies undertaken outside the United Kingdom suggest that the inclusion of 50 g of 30% protected DL Methionine (Ketionin) into the ration of conventionally fed dairy cows improves feed utilisation, milk yield, fertility and health. For instance (Spørndly (1981) in Sweden measured the weight of cows during the experimental period and found that the weight loss in the control group was twice that of the cows that received Ketionin. In West Germany a significant increase in milk of 2.0 kg per day was obtained by Kaufmann and Hagemeister (1980) and similar results were reported by Kuther (1982). Stoikov (1978) in studies on 673 cows in Bulgaria showed an improvement in calving rate from 37% in the control group to 55% in the treated group and Daugaard (1978) working in Denmark reported that the inclusion of Ketionin reduced the incidence of Ketosis.

scholarly journals Effects of chitosan and whole raw soybeans on ruminal fermentation and bacterial populations, and milk fatty acid profile in dairy cows

2018 ◽  
Vol 101 (12) ◽  
pp. 10939-10952 ◽  
Author(s):  
F. Zanferari ◽  
T.H.A. Vendramini ◽  
M.F. Rentas ◽  
R. Gardinal ◽  
G.D. Calomeni ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Dairy Cows ◽  
Fatty Acid Profile ◽  
Milk Fatty Acid ◽  
Ruminal Fermentation ◽  
Bacterial Populations

scholarly journals Effects of berry seed residues on ruminal fermentation, methane concentration, milk production, and fatty acid proportions in the rumen and milk of dairy cows

2019 ◽  
Vol 102 (2) ◽  
pp. 1257-1273 ◽  
Author(s):  
Magdalena Bryszak ◽  
Malgorzata Szumacher-Strabel ◽  
Mohamed El-Sherbiny ◽  
Anna Stochmal ◽  
Wieslaw Oleszek ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Dairy Cows ◽  
Milk Production ◽  
Methane Concentration ◽  
Ruminal Fermentation
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