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Forage Characteristics and Grazing Preference of Cover Crops in Equine Pasture Systems.
Prigge, Jessica L; Sheaffer, Craig C; Jungers, Jacob M; Jaqueth, Aubrey L; Lochner, Hannah L; Martinson, Krishona L.
Afiliação
  • Prigge JL; Department of Animal Science, University of Minnesota, St. Paul, MN.
  • Sheaffer CC; Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN.
  • Jungers JM; Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN.
  • Jaqueth AL; Wright State University - Lake Campus, Celina, OH.
  • Lochner HL; Department of Animal Science, University of Minnesota, St. Paul, MN.
  • Martinson KL; Department of Animal Science, University of Minnesota, St. Paul, MN. Electronic address: krishona@umn.edu.
J Equine Vet Sci ; 103: 103663, 2021 08.
Article em En | MEDLINE | ID: mdl-34281645
Cover crops are commonly used to provide environmental benefits and can extend the grazing season, but have not been explored in horse pastures. The objectives of this research were to evaluate forage mass, forage nutrient composition, and preference of annual ryegrass, winter rye, berseem clover, purple top turnip, and daikon radish under horse grazing. Cover crops were seeded in monoculture and mixtures in August 2018 and 2019 as a randomized complete block with four replicates and grazed by four adult horses. Prior to grazing, forages were sampled to determine herbage and root mass and nutrient composition. After grazing, forages were visually assessed for the percentage of removal on a scale of 0 to 100% to estimate preference. Data was analyzed using an analysis of variance and linear regression; significance was set at P ≤ .05. Berseem clover was the lowest producing forage (590 to 1,869 kg ha-1 dry matter; P ≤.001), while minimal differences in herbage mass were observed among the other cover crops. All forages met digestible energy (>2.17 Mcal kg-1) and crude protein (>19%) requirements for idle, adult horses. Berseem clover was most preferred (>73% removal) while turnip and radish were the least preferred (<19% removal; P ≤.001). Winter rye and annual ryegrass in monoculture and when seeded with berseem clover were moderately preferred (20%-68% removal). Placing a priority on preference, berseem clover, annual ryegrass, and winter rye appear to be suitable cover crops to extend the grazing season in horse pastures.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Lolium / Trifolium Limite: Animals Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Lolium / Trifolium Limite: Animals Idioma: En Ano de publicação: 2021 Tipo de documento: Article