Nutritional and productive performance of dairy cows fed corn silage or sugarcane silage with or without additives
| Autor: | Sebastião de Campos Valadares Filho, Vivian Fischer, Marcelo Messias Duarte Castro, Kirsten Weiss, Tadeu E Silva, João Paulo Pacheco Rodrigues, A. S. Trece, Edenio Detmann, Marcos Inácio Marcondes, Felipe Leite de Andrade |
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| Rok vydání: | 2015 |
| Předmět: |
Crops
Agricultural Dietary Fiber Male Silage Randomized block design Forage Biology Zea mays Random Allocation Animal science Food Animals Casein Surveys and Questionnaires Animals Dry matter Amino Acids Animal Husbandry Lactobacillus buchneri 0402 animal and dairy science Temperature food and beverages 04 agricultural and veterinary sciences Total dissolved solids biology.organism_classification 040201 dairy & animal science Animal Feed Diet Saccharum Neutral Detergent Fiber Milk Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Animal Science and Zoology Animal Nutritional Physiological Phenomena Cattle Female Edible Grain |
| Zdroj: | Tropical animal health and production. 48(4) |
| ISSN: | 1573-7438 |
| Popis: | The objective of this study was to compare the intake, digestibility, and performance of dairy cows fed corn silage, fresh sugarcane, and sugarcane ensiled in three different forms. Twenty-five Holstein cows at 114 ± 12.6 days in milk (DIM) were used. A randomized block design was adopted, using an arrangement of repeated measures over time. The following treatments were tested: corn silage (CS); fresh sugarcane (FS); sugarcane silage without additives (SCS); sugarcane silage enriched with calcium oxide at 5 g/kg of forage (SCSc); and sugarcane silage enriched with Lactobacillus buchneri at 5 × 10(4) cfu/kg of forage (SCSb). The roughage to concentrate ratio was 60:40 for the CS diet and 40:60 for the sugarcane-based diets. The dry matter intake (DMI) as a function of body weight had a downward trend for the cows fed sugarcane silage, compared with those fed FS. The sugarcane silages had higher digestibilities of dry matter (DM), organic matter (OM), and neutral detergent fiber (NDFap), compared with FS. The use of L. buchneri or calcium oxide improved the diet's digestibility. The use of FS, sugarcane silage, or sugarcane silage with additives had no effects on milk and fat-corrected milk yield, compared to corn silage. Cows fed FS presented lower milk total solids content and had a downward trend for milk fat, compared with cows fed sugarcane-silage diets. Cows fed sugarcane silages produced milk with higher casein stability in the alcohol test than cows fed fresh-sugarcane diet. Sugarcane silage, with or without additives, did not reduce the intake of dairy cows, and the use of additives improved the fiber's digestibility. |
| Databáze: | OpenAIRE |
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