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

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.

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

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.
Turkish Journal of Veterinary and Animal Sciences-Cover
  • ISSN: 1300-0128
  • Yayın Aralığı: Yılda 6 Sayı
  • Yayıncı: TÜBİTAK
Sayıdaki Diğer Makaleler

Size composition, growth characteristics and stock analysis of the pikeperch, Sander lucioperca (L. 1758), population in Lake Eğirdir

İsmet BALIK, Hıdır ÇUBUK, Remziye ÖZKÖK, Rahmi UYSAL

Effects of Rams and Luteal or Follicular Phase Ewes on Preovulatory LH Surge Characteristics in Ewes

Sedat YILDIZ, Metehan UZUN, Mehmet KAYA

Can We Use Vitamin E as an Anti-tumoral Agent for the Treatment of Tumors in Fish?

6-Phosphogluconate Dehydrogenase: Purification, Characterization and Kinetic Properties from Rat Erythrocytes

Şükrü BEYDEMİR

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

İsmail AKYOL, Emin ÖZKÖSE, Mehmet Sait EKİNCİ

Asi, Fırat ve Dicle Nehirlerinde Bulunan Liza abu (Heckel, 1843) Populasyonlar›n›n Genetik ve Morfolojik Yapısı

Cemal TURAN, Deniz ERGÜDEN

Genetic and morphologic structure of Liza abu (Heckel, 1843) populations from the ricers orontes, Euphrates and Tigris

Mevlüt GÜRLEK, Cemal TURAN, Funda TURAN, Deniz ERGÜDEN

Acid-Base Status and Blood Gas Analysis in Three Different Anaesthesia Schemes in Dogs

Galina SIMEONOVA

Inhibition effects of some antibiotics on the activity of glucose 6- phosphate dhydrogenase enzyme from rainbow trout (Oncorhynchus mykiss Valbaum, 1792) erythrocytes

Orhan ERDOĞAN, Abdulkadir ÇİLTAŞ, Olcay HİSAR, Mehmet ÇİFTÇİ

Dairy Cattle Farming in Kars District, Turkey: I. Characteristics and Production

Hidayet Metin ERDOĞAN, Mehmet ÇİTİL, Vehbi GÜNEŞ