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  • 1
    Online Resource
    Online Resource
    A comparison of the economic results obtained by Holstein steer calves with different feedlot arrival body weights
    FapUNIFESP (SciELO) ; 2023
    In:  Ciência Rural Vol. 53, No. 6 ( 2023)
    Details
    In: Ciência Rural, FapUNIFESP (SciELO), Vol. 53, No. 6 ( 2023)
    Abstract: RESUMO: O estudo comparou os resultados econômicos entre cinco grupos de bezerros de raça holandesa com pesos vivos de chegada diferente, mas com idades semelhante em confinamento. Os pesos corporais médios de chegada foram 105, 112, 123 e 129 kg (30, 90, 87, 60 e 30 bezerros, respectivamente) com idade de 113 ± 1-d. Os bezerros foram distribuídos em um desenho não balanceado completamente aleatório. Os bezerros foram pesados da chegada ao confinamento e, posteriormente, nos dias 112, 22 e 361 do estudo. Os bezerros foram alimentados com dietas à base de milho floculado. A dieta de adaptação (2,21 Mcal de NEm / kg MS) foi fornecida durante os 112 dias iniciais de ração. Após 112 até o final do estudo todos os novilhos receberam a dieta de terminação (2,27 Mcal de NEm /kg MS). Diante do exposto, foram avaliados dois períodos parciais de alimentação e um período completo (1 a 112, 113 a 361 e 1 a 361 d, respectivamente). O lucro de cada grupo foi estimado subtraindo o custo de compra dos bezerros mais o custo total da alimentação da receita obtida com a venda dos novilhos. O ganho de peso geral e o consumo de ração aumentaram com o aumento do ABW, mas a eficiência alimentar foi melhor para os grupos intermediários ABW (112 e 117 kg), sendo os novilhos com ABW de 112 kg os mais lucrativos (USD 15, 8 a mais do que o grupo de 117 kg.)
    Type of Medium: Online Resource
    ISSN: 1678-4596 , 0103-8478
    Uniform Title: Uma comparação dos resultados econômicos obtidos por bezerros Holstein com diferentes pesos vivos na entrada do confinamento
    URL: Article
    DOI: 10.1590/0103-8478cr20210635
    Language: English , Portuguese
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2023
    detail.hit.zdb_id: 2025834-3
    SSG: 7,36
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  • 2
    Online Resource
    Online Resource
    EFFECT OF MERCURY EXPOSURE ON U1-70 KDA PROTEIN EXPRESSION IN EMBRYOS OF BLACK BEAN (Phaseolus vulgaris L.)
    Sociedade Brasileira de Quimica (SBQ) ; 2022
    In:  Química Nova ( 2022)
    Details
    In: Química Nova, Sociedade Brasileira de Quimica (SBQ), ( 2022)
    Abstract: Exposure to heavy metals has been documented to induce changes in the expression of plant proteins. Phaseolus vulgaris L., represents a great source of nutrition for millions of people, and is the second most important legume crop. The present study aimed to investigate the effects of Hg stress on germination rate and identify the gene expression profiling of U1-70 kDa by using SDS-PAGE analysis. Seeds of black beans (P. vulgaris L.) variety Jamapa were used. The study was performed in the municipality of Guadalupe in Zacatecas, México; August 2009 to 2011. Embryos were exposed to 10 µmol L-1 HgCl2. Expression and detection of U1-70 kDa was affected by mercury. It was possible to amplify the cDNA for U1-70 kDa in all tested samples, there were also found variations in the mRNA of embryos bean seeds for western blot analysis. Mercury does not affect the germination of bean seeds P. vulgaris L.; there is variation in the expression of the U1-70 kDa protein at different hours of exposure to 10 µmol L-1 of mercury. The presence of U1-70 kDa is identified for the first time in early stages of germination of bean seeds P. vulgaris L.
    Type of Medium: Online Resource
    ISSN: 1678-7064
    URL: Article
    DOI: 10.21577/0100-4042.20170882
    Language: Unknown
    Publisher: Sociedade Brasileira de Quimica (SBQ)
    Publication Date: 2022
    detail.hit.zdb_id: 2053241-6
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  • 3
    Online Resource
    Online Resource
    Características de la canal de corderos en confinamiento y en pastoreo
    Asociacion Latinoamericana de Produccion Animal ; 2022
    In:  Archivos Latinoamericanos de Producción Animal Vol. 30, No. Supl. 1 ( 2022-10-15), p. 139-142
    Details
    In: Archivos Latinoamericanos de Producción Animal, Asociacion Latinoamericana de Produccion Animal, Vol. 30, No. Supl. 1 ( 2022-10-15), p. 139-142
    Type of Medium: Online Resource
    ISSN: 2075-8359 , 1022-1301
    URL: Issue
    URL: Journal
    URL: Article
    DOI: 10.53588/alpa3005
    DOI: 10.53588/alpa
    DOI: 10.53588/alpa.300516
    Language: Spanish
    Publisher: Asociacion Latinoamericana de Produccion Animal
    Publication Date: 2022
    detail.hit.zdb_id: 2190472-8
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  • 4
    Online Resource
    Online Resource
    Identification of Sorghum (Sorghum bicolor (L.) Moench) Genotypes with Potential for Hydric and Heat Stress Tolerance in Northeastern Mexico
    MDPI AG ; 2021
    In:  Plants Vol. 10, No. 11 ( 2021-10-22), p. 2265-
    Details
    In: Plants, MDPI AG, Vol. 10, No. 11 ( 2021-10-22), p. 2265-
    Abstract: Sorghum (Sorghum bicolor (L.) Moench) is cultivated in regions with frequent drought periods and high temperatures, conditions that have intensified in the last decades. One of the most important photosynthetic components, sensible to hydric stress, is maximum quantum yield for photosystem II (PSII, or Fv/Fm). The objective of the present study was to identify sorghum genotypes with tolerance to hydric and heat stress. The treatments were hydric status (hydric stress or non-hydric stress (irrigation)), the plant’s developmental stages (pre or post-anthesis), and six genotypes. The response variables were Fv/Fm; photosynthetic rate (PN); stomatal conductance (gs); transpiration rate (E); relative water content (RWC); damage to cell membrane (DCM) at temperatures of 40 and 45 °C; and agronomic variables. The experiment was conducted in pots in open sky in Marín, N.L., in the dry and hot northeast Mexico. The treatment design was a split–split plot design, with three factors. Hydric stress diminished the functioning of the photosynthetic apparatus by 63%, due to damage caused to PSII. Pre-anthesis was the most vulnerable stage to hydric stress as it decreased the weight of grains per panicle (85%), number of grains per panicle (69%), and weight of 100 grains (46%). Genotypes LER 1 and LER 2 were identified as tolerant to hydric stress, as they had lower damage to PSII; LER 1 and LEB 2 for their superior RWC; and LER 1 as a thermo tolerant genotype, due to its lower DCM at 45 °C. It was concluded that LER 1 could have the potential for both hydric and heat stress tolerance in the arid northeast Mexico.
    Type of Medium: Online Resource
    ISSN: 2223-7747
    URL: Article
    DOI: 10.3390/plants10112265
    Language: English
    Publisher: MDPI AG
    Publication Date: 2021
    detail.hit.zdb_id: 2704341-1
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