Papers by Elaine Teixeira
PLOS ONE, Dec 10, 2023
Legumes shrubs such as Cratylia argentea have an ability to thrive in environments with low water... more Legumes shrubs such as Cratylia argentea have an ability to thrive in environments with low water availability and poor soil. On the other hand, forage grasses such as Tifton 85 have a greater demand for inputs to be productive. The objective of this study was to evaluate the performance of growing and finishing Lacaune lambs fed Cratylia argentea hay as an alternative to Tifton 85 (Cynodon spp). Twenty-four Lacaune lambs aged between five and six months (average body weight [BW] 21.50 ± 3.38 kg) were arranged in a split-plot randomized block design. The plots consisted of different Cratylia to Tifton 85 hay proportions (0, 20%, 40%, or 100%, dry matter [DM] basis) as a roughage replacement in the total diet. The subplots represented two evaluation times, entitled "initial period" and "final period", which consisted of the early seven days of total feces and urine collection, and the last seven days of the experiment, respectively. The lambs were blocked by weight with six replicates per treatment. The results show that the level of Tifton 85 replacement for Cratylia hay in the roughage portion of the lamb diet did not influence (P > 0.05) weight gain (WG), dry matter intake or dry matter digestibility; feed conversion, feed efficiency; and the evaluated nitrogen balance variables. The digestibility coefficient of neutral detergent fiber decreased linearly as Tifton 85 replacement for Cratylia level was increased, which probably happened due to the presence of highly lignified material within the Cratylia hay. However, the alternative legume maintained animal performance of Tifton 85. In conclusion, Cratylia hay can be recommended as a potential substitute for Tifton 85 hay, which requires greater inputs for the production. Cratylia may be considered a feeding strategy for livestock production, especially for smallholder livestock systems and regions with unfavorable soil and climate.
Research Square (Research Square), Dec 15, 2022
The objective of this study was to evaluate the performance of nishing Lacaune lambs fed Cratylia... more The objective of this study was to evaluate the performance of nishing Lacaune lambs fed Cratylia argentea hay as an alternative to Tifton 85 (Cynodon spp). Twenty-four Lacaune lambs aged between ve and six months (average body weight [BW] 21.50 ± 3.38 kg) were arranged in a split-plot randomized block design. The plots consisted of different Cratylia to Tifton 85 hay proportions (0, 20%, 40%, or 100%, dry matter [DM] basis) as a roughage replacement in the total diet. The subplots represented two evaluation times, entitled "initial period" and " nal period", which consisted of the early seven days of total feces and urine collection, and the last seven days of the experiment, respectively. The lambs were blocked by weight with six replicates per treatment. The results show that the level of Tifton 85 replacement for Cratylia hay in the roughage portion of the lamb diet did not in uence (P > 0.05) weight gain (WG), dry matter intake or dry matter digestibility; feed conversion, feed e ciency; and the evaluated nitrogen balance variables. Thus, the alternative legume successfully maintained animal performance of Tifton 85. The digestibility coe cient of neutral detergent ber decreased linearly as Tifton 85 replacement for Cratylia level was increased, which probably happened due to the presence of highly ligni ed material within the Cratylia hay. In conclusion, Cratylia hay can be recommended as a feeding strategy for livestock production, especially in regions with unfavorable soil and climate, which requires greater inputs for the production of forage grasses, as Tifton 85.
Revista Brasileira de Milho e Sorgo, 2016
RESUMO-Este trabalho teve como objetivo determinar o acúmulo de matéria seca e macronutrientes no... more RESUMO-Este trabalho teve como objetivo determinar o acúmulo de matéria seca e macronutrientes nos diferentes estádios fenológicos da cultura do sorgo granífero no período da safrinha. Foi instalado um experimento em condições de campo com irrigação complementar em um latossolo vermelho distrófico no município de Janaúba, MG, utilizando o híbrido de sorgo granífero DKB 599. Utilizou-se o delineamento de blocos casualizados, com quatro repetições. Foram determinados a marcha de absorção de macronutrientes (N, P, K, Ca, Mg e S) e o acúmulo de matéria seca do caule, folhas, panícula e grãos de sorgo. O sorgo granífero (DKB 599), plantado na safrinha, alcança o máximo acúmulo de massa seca e macronutrientes N, P, K, Ca, Mg e S durante o estágio de grãos duros, final do ciclo. O acúmulo de macronutrientes na parte aérea de sorgo granífero na safrinha (DKB 599) tem a seguinte ordem decrescente: K > N >
Revista Brasileira de Milho e Sorgo, Mar 31, 2018
The present study aimed to determine the curves of macronutrients and dry matter accumulation in ... more The present study aimed to determine the curves of macronutrients and dry matter accumulation in grain sorghum DKB 599, grown in a semiarid region. A field experiment was conducted on a sandy loam eutrophic red Latosol (Oxisol) in Janaúba, State of Minas Gerais (MG), Brazil, in a randomized block design with four replications. As statistical method, a nonlinear regression, sigmoidal function with three parameters was used. After drying, the plants were weighed and ground to determine N, P, K, Ca, Mg and S concentration. Grain sorghum plants accumulate nutrients in their shoots in the following order: N> K> Ca> P> Mg> S. The highest concentrations of K and N were observed in stems and grains, respectively. In the conditions of this experiment, the most favorable time to perform nitrogen and potassium topdressing fertilization is when the plants present seven fully expanded leaves or 24 days after the emergency (DAE).
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Papers by Elaine Teixeira