Effect of Feeding Frequency on Fermentation Pattern and Microbial Activity in the Bovine Rumen

Jensen, Kurt; Wolstrup, J.

doi:10.1186/bf03548471

Cited by 29 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although levels of feeding in our experiments were much higher (dry matter intake was ca. 3 % of body weight) our results support those results in which frequencies of feeding (concentrates) do not result in dif ferences in lowest pH level (Bath & Rook, 1963;Jensen & Wolstrup, 1977;Jorgensonetal.. 1965;Satter & Baumgardt. 1962).…”

Section: Ph Of Rumen Fluidsupporting

confidence: 89%

“…In order to limit the risk of a disturbance of the rumen function it may be attrac tive to distribute concentrates in several portions over the day (Kaufmann & Hagemeister, 1973). Literature on the effect of feeding frequency (concentrates) is not always easily to interprète for several reasons; (a) incomplete details about the composition of the ration, (b) a limitation of the amount of feed supplied (Bath & Rook, 1963;Jensen & Wolstrup. 1977;Jorgenson et al.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Concentrate feeding and ruminal fermentation. 1. Influence of the frequency of feeding concentrates on rumen acid composition, feed intake and milk production.

Malestein¹,

Klooster²,

Counotte³

et al. 1981

NJAS

View full text Add to dashboard Cite

1. Four cows with rumen cannulae were given 12 kg concentrates daily in 2 equal portions at 0800 and 1530, in one portion of 12 kg at 0800 or in 4 portions of 3 kg each at 0800, 1100, 1400 and 1700 h. Every period lasted 2 weeks. In addition to the concentrates hay was provided at 0900 and 1630 h and was adjusted so that the daily remainder was at least 1 kg. In 1978 experiments were made with concentrates low in starch and sugars (LSS) (23%) and in 1979 with concentrates high in starch and sugars (HSS) (50%). In 1978 when total DM intake, milk production and milk fat content of each milking were estimated daily, the trend in pH and concentration of L-lactic acid in rumen fluid were estimated on the last day of the preliminary period (2 X 6 kg) and on the 1st, 7th and 14th days of the experimental periods (1 X 12 kg and 4 X 3 kg). In 1979 the same estimations were made, but D-lactic acid and volatile fatty acids were also estimated. Compared to 2 X 6 kg concentrates the changeover to daily 1 X 12 kg or 4 X 3 kg concentrates did not result in significant differences in DM intake nor in milk or milk fat production. Within types of concentrates there was hardly any difference in lowest rumen pH between frequencies of concentrate feeding. When HSS concentrates were given pH in rumen fluid tended to be lower than with the LSS concentrates. With 2 X 6 kg HSS concentrates, pH in rumen fluid was for a short time lower than 5.5. Lactic acid concentrations in the rumen fluid reached maximum within 1 h after concentrate feeding and L-lactic acid was 6.5, 5.0 and 2.0 mmol/litre, respectively, for 1 X 12, 2 X 6 and 4 X 3 kg LSS concentrates. For HSS concentrates the values were 4.5, 2.5 and 1.0 mmol/litre. When the HSS concentrates were given maximum concentration of D-lactic acid in rumen fluid were 2.5 to 3 times the L-lactic acid concentration. When lactic acid was not increased D- and L-lactic acid concentrations were similar. At 0800 h the molar ratio of volatile fatty acids (C2:C3:C4) as a percentage of total volatile fatty acids (VFA) in rumen fluid was 62:22:15 and changed gradually to 56:24:20 at 1900 h. Differences in VFA between frequencies of concentrate feeding were small. Total concentrations of VFA did not vary between treatments. (Abstract retrieved from CAB Abstracts by CABI’s permission)

show abstract

Section: Ph Of Rumen Fluidsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Concentrate feeding and ruminal fermentation. 1. Influence of the frequency of feeding concentrates on rumen acid composition, feed intake and milk production.

Malestein¹,

Klooster²,

Counotte³

et al. 1981

NJAS

View full text Add to dashboard Cite

show abstract

“…The third area comprises Bang's work on tuberculin and its application for diagnosing and combatting tuberculosis in cattle by means of a method developed by himself [35]. Bovine tuberculosis was causing 25% of intestinal and glandular tuberculosis in the Danish population due to the presence of the bovine mycobacteria in the milk [30,35,36]. Bang became world famous and after his retirement got a lifelong annual gift from the Danish state.…”

Section: Bernhard Bangmentioning

confidence: 99%

Louis Pasteur and the birth of microbiology in Denmark

Høiby

2022

APMIS

View full text Add to dashboard Cite

Høiby N. Louis Pasteur and the birth of microbiology in Denmark. APMIS 2022. Louis Pasteur's work initiated the birth of microbiology in Denmark. Carl Julius Salomonsen was the pioneer who inspired and taught Christian Gram, Thorvald Madsen and Bernhard Bang bacteriological techniques in his annual bacteriological course which he started in 1883 at the University of Copenhagen. These pioneers developed Danish human and veterinary microbiology and became world famous. Emil Chr. Hansen developed Danish technical/industrial microbiology in the Carlsberg Laboratory and purified yeast and designed equipment for the propagation of pure yeast which was used worldwide in beer brewing. He also became world famous. The fascinating birth and development of Danish microbiology is summarized in this article, which is dedicated to the 200th birthday of Louis Pasteur, December 27, and 100th birthday of the Danish Pasteur Society, October 25, 2022.

show abstract

Feed additives and other interventions for decreasing methane emissions

Nevel

Demeyer

1995

Biotechnology in Animal Feeds and Animal Feeding

View full text Add to dashboard Cite

Effect of Feeding Frequency on Fermentation Pattern and Microbial Activity in the Bovine Rumen

Cited by 29 publications

References 22 publications

Concentrate feeding and ruminal fermentation. 1. Influence of the frequency of feeding concentrates on rumen acid composition, feed intake and milk production.

Concentrate feeding and ruminal fermentation. 1. Influence of the frequency of feeding concentrates on rumen acid composition, feed intake and milk production.

Louis Pasteur and the birth of microbiology in Denmark

Feed additives and other interventions for decreasing methane emissions

Contact Info

Product

Resources

About