Passion fruit by-product as a substitute for Tifton 85 hay in diets for dairy heifers
| Autor: | Mércia Regina Pereira de Figueiredo, Eloisa de Oliveira Simões Saliba, Geraldo Sérgio Senra Carneiro Barbosa, Filipe Aguiar e Silva, Cecília Ribeiro da Mota e Silva, Andressa Nathalie Nunes, Guilherme Rocha Moreira, Tássia Ludmila Teles Martins |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Semina: Ciências Agrárias, Vol 40, Iss 6 (2019) |
| Druh dokumentu: | article |
| ISSN: | 1679-0359 1676-546X |
| DOI: | 10.5433/1679-0359.2019v40n6p2719 |
| Popis: | This study was undertaken to examine the intake, nutrient digestibility, protein and energy balance and feeding behavior of dairy heifers fed diets in which Tifton 85 bermuda grass (Cynodon sp) hay was substituted by a passion fruit (Passiflora edulis) by-product. Sixteen Holstein × Zebu crossbred heifers with an average weight of 363.00 ± 27.7 kg were assigned to four treatments represented by diets in which levels of a passion fruit by-product (0, 12, 24 and 36%; dry matter basis) were added as a substitute for Tifton 85 bermuda grass. The intakes of crude protein and ether extract (P > 0.05) rose as the by-product was added to the diets. Nitrogen intake, absorbed nitrogen and urinary nitrogen also increased with the inclusion of the by-product. Passion fruit by-product can be included in diets for dairy heifers up to the level of 36%. |
| Databáze: | Directory of Open Access Journals |
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