Details

Autor(en) / Beteiligte

• Ali, Asep I M
• Wassie, Shimels E
• Joergensen, Rainer Georg
• Korir, Daniel
• Goopy, John P
• Butterbach-Bahl, Klaus
• Merbold, Lutz
• Dickhoefer, Uta
• Schlecht, Eva

Titel

Feed Quality and Feeding Level Effects on Faecal Composition in East African Cattle Farming Systems

Ist Teil von

• Animals (Basel), 2021-02, Vol.11 (2), p.564

Ort / Verlag

Switzerland: MDPI AG

Erscheinungsjahr

2021

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• Effects of feeding levels below maintenance requirements of metabolizable energy (MER) and of feed supplementation on fecal nutrient and microbial C concentrations were evaluated. In experiment 1, Rhodes grass hay only was offered to Boran steers at 80%, 60%, and 40% of individual MER, while steers at 100% MER additionally received a concentrated mixture. This reduction in MER decreased N, increased fungal C but did not affect bacterial C concentrations in feces. In experiment 2, Holstein × Boran heifers were offered a poor-quality roughage diet without supplement, with sweet potato vine silage or with a urea-molasses block. These two supplements did not affect the fecal chemical composition or fungal C but increased bacterial C concentrations in feces. Across all data, the fungal C/bacterial C ratio was positively related to N and negatively to neutral detergent fiber concentrations in feces, indicating diet-induced shifts in the fecal microbial community.