Effects of substituting kraft pulp with corn silage on dry matter intake, ruminal mat formation, rumen fermentation, and rumination activity in non‐lactating cows
| Autor: | Tatuya Tamura, Shigeru Morita, Kenichi Izumi, Ryoya Fujii, Hiroki Nakatsuji |
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| Rok vydání: | 2018 |
| Předmět: |
Rumen
Rumination Digestive Time Factors Silage Soybean meal Zea mays Eating 03 medical and health sciences Animal science medicine Animals Lactation Dry matter 030304 developmental biology 0303 health sciences Chemistry 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences General Medicine Wood 040201 dairy & animal science Diet Kraft process Rumination Animal Nutritional Physiological Phenomena Cattle Digestion Female Fermentation medicine.symptom General Agricultural and Biological Sciences |
| Zdroj: | Animal Science Journal. 90:205-213 |
| ISSN: | 1740-0929 1344-3941 |
| DOI: | 10.1111/asj.13149 |
| Popis: | The present study examined the effects of substituting kraft pulp (KP) with corn silage (CS) on dry matter intake (DMI), ruminal mat and rumen fermentation characteristics, and rumination. Four non-lactating, rumen-cannulated Holstein cows were fed a CS diet comprising 36% grass silage (GS) and 64% CS or a KP diet comprising 36% GS, 57% KP, and 7% soybean meal. DMI was significantly lower in cows fed the KP diet than in those fed the CS diet (p < 0.05), whereas rumination time did not significantly differ between the treatments. Dry matter content in the rumen immediately before and 3 h after feeding was significantly higher in cows fed the KP diet than in those fed the CS diet (p < 0.05). The consistency and thickness of the ruminal mat did not significantly differ between the treatments. The ruminal mean retention time of feed particles tended to be longer in cows fed the KP diet than in those fed the CS diet (p < 0.10). The ruminal digestion rate of KP was comparable to that of GS and CS. Because ruminal mat was formed and rumination was stimulated, KP was considered to have the equivalent physical effectiveness as CS. |
| Databáze: | OpenAIRE |
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