Resultados de búsqueda - MLB~

  1. Pruebas de toros en el ganado criollo de Turrialba por Alba, Jorge de, Muñoz, Héctor

    Publicado 2025
    “…Las principales desventajas se deben a: 1) consanguinidad; 2) escaso número de madres; y 3) inexactitud de las pruebas debido al escaso número de hijas. Durante estos 12 años, solo dos toros sobresalieron, Panchito y Palacios, y su uso se redujo por las tres razones expuestas.…”
    Enlace del recurso
    Artículo
  2. La utilización de sangre de razas europeas y zebú para producción de leche en América Tropical por Alba, Jorge de, Solares, L.

    Publicado 2025
    Materias: “…Producción lechera||milk production||produção leiteira||production laitière…”
    Enlace del recurso
    Artículo
  3. Resistencia a los parásitos externos en algunas razas de bovinos por Ulloa, Gustavo, Alba, Jorge de

    Publicado 2025
    “…No significant correlation was found between susceptibility to one parasite and susceptibility to the other. Significance may be attached to the empirical ob-servation, that those animals which showed the least number of parasites counted, haves a marked resistance to skin punctme by a bypodermic needle.…”
    Enlace del recurso
    Artículo
  4. Estudio comparativo de dos gramíneas forrajeras: Axonopus compressus, Swts. y Digitaria decumbens, Stent por Alba, Jorge de, Tapia, Carlos

    Publicado 2025
    “…El crecimiento y la palatabilidad fueron siempre mayores con esta última. …”
    Enlace del recurso
    Artículo
  5. Community-based environmental protection in the Brazilian Amazon: Recent history, legal landmarks and expansion across protected areas por Franco, C.L.B., El Bizri, H.R., Souza, P.R. de, Fa, J.E., Valsecchi, J., Sousa, I.S. de, Queiroz, H.L. de

    Publicado 2021
    “…From our analyses we unveil four main factors that may have allowed the VEA Program to expand and flourish: (a) the communities' previous demand for an effective control system, (b) its legal formalization and regulation, (c) the support from external institutions, and (d) the consolidation of community-based management programs to fund actions. …”
    Enlace del recurso
    Journal Article
  6. Physical and chemical properties of a sandy loam soil under irrigated rice-wheat sequence in the Indo-Gangetic Plains of South Asia por Gathala, M.K., Jat, M.L., Saharawat, Y.S., Sharma, S.K., Yadvinder, S., Ladha, J.K.

    Publicado 2017
    “…Wheat was direct sown after ZT (DSW) in all the plots. Substituting PTR/ DSW without crop residues with ZT-DSR/DSW plus residue cycling reduced electrical conductivity from 0.146 dS m‒1 to 0.128 dS m‒1 and increased soil organic C from 5.72 g kg-1 to 6.25 g kg-1 in 0-15 cm layer. …”
    Enlace del recurso
    Journal Article
  7. CGIAR research priorities for environmental health and biodiversity to advance the three Rio conventions por Masso, C., Jat, M.L, Stevenson, P., Mbarak, H., Alekseeva, N., Kumar, S., Ortiz, O., Milach, S

    Publicado 2025
    “…The CGIAR 2025-2030 R&I portfolio science programs (SP) and accelerators (AC) have been designed to integrate such lessons, with the multifunctional landscapes (MFL) and Sustainable Farming (SF) SP playing a pivotal role.…”
    Enlace del recurso
    Video
  8. Immune depresssion in trypanosome-infected mice. 2. Characterization of the spleen cell types involved por Roelants, G.E., Pearson, T.W., Tyrer, H.W., Mayor-Withey, K.S., Lundin, L.B.

    Publicado 1979
    “…Spleen cells from Trypanosoma congolense‐infected mice showed a drastic depression in their capacity to respond to B and T lymphocyte mitogens and to allogeneic spleen cells in mixed lymphocyte cultures. …”
    Enlace del recurso
    Journal Article
  9. The epidemiology of nematode infections in sheep in a cool tropical environment por Tembely, S., Lahlou-Kassi, A., Rege, J.E.O., Sovani, S., Diedhiou, M.L., Baker, R.L.

    Publicado 1997
    “…An important finding was that conditions during the short rainy season (i.e. March-May) were not conducive to the development and survival of nematode eggs and the free-living stages, hence little or no transmission occurred. …”
    Enlace del recurso
    Journal Article
  10. Cultivation and conservation in Ngorongoro conservation area, Tanzania por Boone, Randall B., Galvin, K.A., Thornton, Philip K., Swift, D.M., Coughenour, M.B.

    Publicado 2006
    “…Using a Landsat image from 2000, we mapped 3,967 ha [9,803 acres (ac)] of cultivation within NCA, or 39.7 km2 of the 8,283 km2 conservation area. …”
    Enlace del recurso
    Journal Article

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