Determination of Microbial Gas Production, Fermentation Kinetics and Digestibility of Alternative Crop Silages

İsmail AKYOL; Emin ÖZKÖSE; Mehmet Sait EKİNCİ

Article Details

Determination of Microbial Gas Production, Fermentation Kinetics and Digestibility of Alternative Crop Silages

Authors:

İsmail AKYOL | Emin ÖZKÖSE | Mehmet Sait EKİNCİ

Publisher:

TUBITAK

Journal:

Turkish Journal of Veterinary and Animal Sciences 2004 Vol.28 Issue 4, pp.655-662

Document Type:

Article

Publication Date:

3/2004

Document Language:

Turkish

Document ID (Org No.):

2000769433

Frequency:

Bimonthly

eISSN:

1303-6181

pISSN:

1300-0128

Keywords:

Abstract:

 

Microbial gas production (MGP), fermentation kinetics and DM loss of crop silages made from 7 different plant families (barley/pea, clover, grass, kale, lotus, lucerne, sainfoin) and 10 different refusals were determined. The pressure transducer technique (PTT) was used to measure the microbial gas production of fresh and ground silages and refusal samples at regular intervals throughout the 120 h incubation. The MGP of fresh and ground silages were similar (r2 = 0.90). The maximum gas production was obtained from kale for ground and fresh silages whilst grass silage yielded the maximum gas pool for refusals. No differences were found between lag time but times to produce 50% and 95% gas pool were shorter with ground silages than with fresh silages and refusals. Total volatile fatty acid (VFA) production was notably lower for refusals compared to fresh and ground silages, yet ground and fresh silages yielded similar VFA levels. Dry matter (DM) losses of ground and fresh silages were similar. However, lower DM losses were observed for refusals. These results suggest that refusals could be used as a valuable and digestible feed-stuff for animals.

 

Microbial gas production (MGP), fermentation kinetics and DM loss of crop silages made from 7 different plant families (barley/pea, clover, grass, kale, lotus, lucerne, sainfoin) and 10 different refusals were determined. The pressure transducer technique (PTT) was used to measure the microbial gas production of fresh and ground silages and refusal samples at regular intervals throughout the 120 h incubation. The MGP of fresh and ground silages were similar (r2 = 0.90). The maximum gas production was obtained from kale for ground and fresh silages whilst grass silage yielded the maximum gas pool for refusals. No differences were found between lag time but times to produce 50% and 95% gas pool were shorter with ground silages than with fresh silages and refusals. Total volatile fatty acid (VFA) production was notably lower for refusals compared to fresh and ground silages, yet ground and fresh silages yielded similar VFA levels. Dry matter (DM) losses of ground and fresh silages were similar. However, lower DM losses were observed for refusals. These results suggest that refusals could be used as a valuable and digestible feed-stuff for animals.

Article Details

Determination of Microbial Gas Production, Fermentation Kinetics and Digestibility of Alternative Crop Silages

Authors:

İsmail AKYOL | Emin ÖZKÖSE | Mehmet Sait EKİNCİ

Publisher:

TUBITAK

Journal:

Turkish Journal of Veterinary and Animal Sciences 2004 Vol.28 Issue 4, pp.655-662

Document Type:

Article

Publication Date:

3/2004

Document Language:

Turkish

Document ID (Org No.):

2000769433

Frequency:

Bimonthly

eISSN:

1303-6181

pISSN:

1300-0128

Microbial gas production

fermentation kinetics

silage digestibility

Issues

Article Details

Determination of Microbial Gas Production, Fermentation Kinetics and Digestibility of Alternative Crop Silages

Authors: İsmail AKYOL | Emin ÖZKÖSE | Mehmet Sait EKİNCİ

Publisher: TUBITAK

Journal: Turkish Journal of Veterinary and Animal Sciences 2004 Vol.28 Issue 4, pp.655-662

Document Type: Article

Publication Date: 3/2004

Document Language: Turkish

Document ID (Org No.): 2000769433

Frequency: Bimonthly

eISSN: 1303-6181

pISSN: 1300-0128

Microbial gas production

fermentation kinetics

silage digestibility

Issues

Authors:

İsmail AKYOL | Emin ÖZKÖSE | Mehmet Sait EKİNCİ

Publisher:

TUBITAK

Journal:

Turkish Journal of Veterinary and Animal Sciences 2004 Vol.28 Issue 4, pp.655-662

Document Type:

Article

Publication Date:

3/2004

Document Language:

Turkish

Document ID (Org No.):

2000769433

Frequency:

Bimonthly

eISSN:

1303-6181

pISSN:

1300-0128