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Replacement of alfalfa hay (Medicago sativa) with maralfalfa hay (Pennisetum sp.) in diets of lactating dairy goats

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Replacement of alfalfa hay (Medicago sativa) with maralfalfa hay (Pennisetum sp.) in diets of lactating dairy goats

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dc.contributor.author Criscioni-Ferreira, Patricia Fabiola es_ES
dc.contributor.author Martí Vicent, José Vicente es_ES
dc.contributor.author Pérez Baena, Ion es_ES
dc.contributor.author Palomares Carrasco, José Luis es_ES
dc.contributor.author Larsen, Torben es_ES
dc.contributor.author Fernández Martínez, Carlos Javier es_ES
dc.coverage.spatial east=-0.3410670000000664; north=39.481059; name=Servicio de Deportes, 46022 Valencia, Espanya es_ES
dc.date.accessioned 2017-09-15T09:42:05Z
dc.date.available 2017-09-15T09:42:05Z
dc.date.issued 2016-09
dc.identifier.issn 0377-8401
dc.identifier.uri http://hdl.handle.net/10251/87345
dc.description.abstract [EN] The objective of this experiment was to study the effects of substituting alfalfa (Medicago sativa) with maralfalfa (Pennisetum sp.) on energy, nitrogen and carbon balance, methane emission, and milk performance in dairy goats. Ten Murciano-Granadina dairy goats in late lactation (45.7 ± 2.96 kg of body weight[BW]) were selected in a 2-treatment and crossover design experiment where each goat received both treatments in 2 periods. One group of five goats was fed a mixed ration with alfalfa as forage (A diet) and the other diet replaced alfalfa with maralfalfa (M diet) in a forage concentrate ratio of 40/60. Diets were isoenergetic and isoproteic. The goats were allocated to individual metabolism cages. After 17 d of adaptation, feed intake, total faecal and urine output and milk yield were recorded daily over a 5 d period. Then, gas exchange measurements were recorded individually by a mobile open-circuit indirect calorimetry system using a head box. Daily dry matter intake was higher on A than on M diets (1.8 vs. 1.6, for A and M respectively), but no differences was observed in metabolizable energy intake (1089 kJ/kg of BW0.75, on average). Greater values in M than A were found in rumen propionic acid (17.5 vs. 15.6 mol/100 mol, respectively) and milk C15:0 (0.81 vs. 0.62 g/100 g), C17:0 (0.33 vs. 0.24 g/100 g) fatty acids, indicating predominance of amylolytic fermentation. Milk uric acid, a potential biomarker of rumen nitrogen flow and feed efficiency, was higher in A than M (133 vs. 102 mol/L). Higher milk yield (1.8 vs. 1.7 kg/d) and CH4 emissions (28.5 vs. 25.9 g/d) in A compared to M diet were observed, respectively. Use of tropical grasses such as maralfalfa in temperate climates could be a strategy for farmers to incorporate forage into feed for flocks, as milk chemical composition did not change markedly and maralfalfa inclusion reduced CH4 emissions by goats (although this reduction did not occur in CH4 emission compared to dry matter intake and milk yield). © 2016 Elsevier B.V. All rights reserved. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier Masson es_ES
dc.relation.ispartof Animal Feed Science and Technology es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Goat es_ES
dc.subject Maralfalfa es_ES
dc.subject Methane es_ES
dc.subject Milk yield es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Replacement of alfalfa hay (Medicago sativa) with maralfalfa hay (Pennisetum sp.) in diets of lactating dairy goats es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.anifeedsci.2016.05.020
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural - Escola Tècnica Superior d'Enginyeria Agronòmica i del Medi Natural es_ES
dc.description.bibliographicCitation Criscioni-Ferreira, PF.; Martí Vicent, JV.; Pérez Baena, I.; Palomares Carrasco, JL.; Larsen, T.; Fernández Martínez, CJ. (2016). Replacement of alfalfa hay (Medicago sativa) with maralfalfa hay (Pennisetum sp.) in diets of lactating dairy goats. Animal Feed Science and Technology. 219:1-12. doi:10.1016/j.anifeedsci.2016.05.020 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1016/j.anifeedsci.2016.05.020 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 12 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 219 es_ES
dc.relation.senia 327366 es_ES
dc.identifier.eissn 1873-2216


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