Tifton 85 bermudagrass (Cynodon sp.) silage as a replacement for Tifton 85 hay to feed lactating cows
Open Access
- 1 September 2017
- journal article
- ruminant
- Published by FapUNIFESP (SciELO) in Revista Brasileira de Zootecnia
- Vol. 46 (9), 766-772
- https://doi.org/10.1590/s1806-92902017000900009
Abstract
The objective of the study was to evaluate the replacement of Tifton 85 hay (TH) for Tifton 85 silage (TS) in the diets of lactating cows. Five Holstein cows in middle of lactation were allocated in a 5 × 5 Latin square design and each experimental period lasted 18 days (12 days for adaptation and six days for collection). Treatments consisted of replacement of 0, 25, 50, 75, and 100% of TH for TS. The intake and digestion of nutrients, microbial protein synthesis, milk yield and composition, and the economic viability of the diets were evaluated. The intakes of dry matter, organic matter, and ether extract had a positive linear effect and the digestibility of dry matter, organic matter, crude protein, neutral detergent fiber, acid detergent fiber decreased linearly with increasing participation of TS. Milk production and composition and microbial protein synthesis were not affected. Regarding economic viability, the treatment with 100% hay produced better results, with better gross margin. The Tifton 85 silage can be used as a replacement for Tifton 85 hay up to 100% without changing the milk production and composition of Holstein cows.Keywords
This publication has 19 references indexed in Scilit:
- Effect of forage conservation method on plasma lipids, mammary lipogenesis, and milk fatty acid composition in lactating cows fed diets containing a 60:40 forage-to-concentrate ratioJournal of Dairy Science, 2013
- Effect of forage conservation method on ruminal lipid metabolism and microbial ecology in lactating cows fed diets containing a 60:40 forage-to-concentrate ratioJournal of Dairy Science, 2013
- Brown midrib corn silage and Tifton 85 bermudagrass in rations for early-lactation cowsJournal of Dairy Science, 2010
- Characterization of the Maillard reaction in bread crispsZeitschrift für Lebensmittel-Untersuchung und Forschung, 2008
- Influência do tempo de incubação e do tamanho de partículas sobre os teores de compostos indigestíveis em alimentos e fezes bovinas obtidos por procedimentos in situRevista Brasileira de Zootecnia, 2008
- Degradabilidade ruminal e fracionamento de carboidratos de silagens de grama estrela (Cynodon nlemfuensis vanderyst.) com diferentes aditivosSemina: Ciências Agrárias, 2007
- Avanços metodológicos na avaliação da qualidade da forragem conservadaRevista Brasileira de Zootecnia, 2007
- Consumo, digestibilidade e excreção de uréia e derivados de purinas em vacas de diferentes níveis de produção de leiteRevista Brasileira de Zootecnia, 2007
- Avaliação de algumas características da silagem de gramínea estrela roxa (Cynodon nlemfuensis Vanderyst)Revista Brasileira de Zootecnia, 2000
- Registration of ‘Tifton 85’ BermudagrassCrop Science, 1993