Silages containing buckwheat and chicory: quality, digestibility and nitrogen utilisation by lactating cows
| العنوان: | Silages containing buckwheat and chicory: quality, digestibility and nitrogen utilisation by lactating cows |
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| المؤلفون: | Tasja, Kälber, Michael, Kreuzer, Florian, Leiber |
| المصدر: | Microsoft Academic Graph |
| بيانات النشر: | Informa UK Limited, 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | Nitrogen balance, Nitrogen, Silage, Forage, Animal science, Cichorium, Animals, Lactation, Dry matter, General Veterinary, biology, Chemistry, food and beverages, Wilting, General Medicine, Lolium multiflorum, biology.organism_classification, Cicer, Diet, Lolium, Dairying, Milk, Agronomy, Animal Nutritional Physiological Phenomena, Cattle, Digestion, Female, Animal Science and Zoology, Nutritive Value, Fagopyrum |
| الوصف: | The suitability of silages containing buckwheat (Fagopyrum esculentum) and chicory (Cichorium intybus) for the nutrition of dairy cows was determined. Buckwheat and chicory were sown in mixture with ryegrass (Lolium multilorum), and a pure ryegrass culture served as a control forage. Swards were harvested 55 d after sowing and were ensiled after wilting, without additives in small round bales. Finally, buckwheat and chicory made up the dietary dry matter (DM) proportions of 0.46 and 0.34, respectively. Concentrates were restricted to 2 kg/d. Diets were fed to 3 x 6 late-lactating cows for 15 d at ad libitum access. During the collection period (days 10-15) amounts of feed intake and faeces, urine and milk were recorded and samples were taken. Ensilability was good for buckwheat and ryegrass swards, but was so less for the chicory sward, which was rich in total ash. The buckwheat silage was rich in acid detergent fibre (445 g/kg DM) and lignin (75.7 g/kg DM) and contained less crude protein (135 g/kg DM) and ether extract (15.8 g/kg DM) than the other silages. Consistent with that, the apparent digestibility of the organic matter and fibre were lowest when feeding this silage. The potassium concentrations in the chicory and ryegrass silages were high (61 g/ kg) and lower in buckwheat (47 g/kg). No significant treatment effects on intake, body weight, milk yield or milk composition as well as plasma beta-hydroxybutyrate and non-esterified fatty acids occurred. Being lowest in nitrogen (N) content, the buckwheat silage resulted in the lowest urine N losses and the most efficient N utilisation for milk protein synthesis, but this at cost of body N retention. The results show that silages containing buckwheat and chicory may be used as components of the forage part of dairy cows' diets even though they were found to have a lower feeding value than ryegrass silage. |
| تدمد: | 1477-2817 1745-039X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53905c866ba9f2d67f4559a4ef77e596 https://www.ncbi.nlm.nih.gov/pubmed/22397096 |
| حقوق: | RESTRICTED |
| رقم الأكسشن: | edsair.doi.dedup.....53905c866ba9f2d67f4559a4ef77e596 |
| قاعدة البيانات: | OpenAIRE |
PDF full text from Publisher | تدمد: | 14772817 1745039X |
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