Effect of Maturity on Nutritive Value of Corn Silage for Lactating Cows

Huber, J.T.; Graf, G.C.; Engel, R. W.

doi:10.3168/jds.s0022-0302(65)88408-9

Cited by 59 publications

(21 citation statements)

References 4 publications

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“…This is in accord with the findings of Huber et al (6), in which voluntary intake of silage DM by lactating cows increased as silage DM content increased. Mean animal gains and efficiency of feed conversion were also higher for the more mature silage rations; however, these differences were not statistically signifi cant.…”

Section: Cameron Silages For Beef Steerssupporting

confidence: 93%

Effects of Cultivar and Maturity of Ensiled Corn Plant Fed With and Without Concentrates on the Performance of Group and Individually Fed Hereford and Angus Steers

Cameron¹,

Lachance²

1970

Can. J. Anim. Sci.

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Section: Cameron Silages For Beef Steerssupporting

confidence: 93%

Effects of Cultivar and Maturity of Ensiled Corn Plant Fed With and Without Concentrates on the Performance of Group and Individually Fed Hereford and Angus Steers

Cameron¹,

Lachance²

1970

Can. J. Anim. Sci.

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“…Variação na proporção de espiga de 63,62 a 70,25% foram observadas entre os híbridos, o menor valor foi para o híbrido semiprecoce P30F80 e, o maior valor, para o híbrido superprecoce P32R21. Estas proporções de espiga são superiores às encontradas na literatura (Nevens & Dungam, 1942;Huber et al, 1965;Souza, 1989;Hunt et al, 1993;Henrique et al, 1994;Almeida Filho, 1996;Lavezzo et al, 1997;Almeida Filho et al, 1999;Silva et al, 1999;Flaresso et al, 2000). Para as percentagens de grãos na matéria seca da planta inteira, nos diferentes estádios de maturação, houve diferença entre os híbridos (P<0,01) e de DPP (P<0,01).…”

Section: Resultsunclassified

“…Os autores concluíram que o principal responsável para elevar a matéria seca da planta e manter a qualidade da silagem foi à espiga. Huber et al (1965) também demonstraram que a participação da espiga na produção de MS total aumentou com o avanço da maturidade. Naquele trabalho, a percentagem da produção de MS total representada pelas espigas, folhas e haste foi, respectivamente, de 34,0%, 35,0% e 31,0% para o estágio de grão leitoso; 47,0%, 28,0% e 25,0% para o estádio de grão pastoso e de 51,5%, 25,0% e 24,0% para o estádio de grão farináceo, respectivamente.…”

Section: Introductionunclassified

Avaliação de cinco híbridos de milho (Zea mays, L.) em diferentes estádios de maturação: 2. Concentrações dos componentes estruturais e correlações

Beleze¹,

Zeoula²,

Cecato³

et al. 2003

R. Bras. Zootec.

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RESUMO -Este trabalho foi conduzido para avaliar a concentração de componentes estruturais de cinco híbridos de milho Pioneer: o superprecoce P32R21, os precoces P30R07, P3041, P30F33 e o semiprecoce P30F80, em cinco estádios de maturação. O delineamento utilizado foi de blocos ao acaso, com cinco tratamentos e quatro repetições. A colheita das plantas dos híbridos de milho foi realizada em cinco estádios de maturação propostos: 30, 34, 38, 42 e 46% de matéria seca (MS). Para cada estádio de maturação, procedeu-se à separação de colmo + bainha, lâmina foliar, grão, sabugo e palha. Depois das pesagens e com posterior determinação dos teores de MS, foram obtidas as concentrações (%) de grão, de sabugo + palha, de espiga, de colmo + bainha e de lâmina foliar em relação à planta inteira dos cinco híbridos, nos cinco estádios de maturação. Para todos os parâmetros avaliados, os híbridos diferiram entre si e apresentaram significância de dias pós-plantio (DPP). Ficou caracterizado que, com o avanço do estádio de maturidade da planta, ocorreram aumento nas concentrações (%) de espiga e grãos e diminuição nas concentrações da lâmina foliar e colmo + bainha em relação à MS da planta inteira.Palavras-chave: espiga, estádios de maturação, fração vegetativa, grãos, milho Evaluation of Five Corn Hybrids (Zea mays, L.) at Different Maturity Stages. 2. Structural Component Concentrations and CorrelationsABSTRACT -This study was conducted to evaluate the structural component concentrations of five hybrids of Pioneer corn:P32R21, P30R07, P3041, P30F33 and P30F80, at different maturity stages. The treatments were used in plots of 7 x 8 m in a randomized block design, with four replicates. The samples collected, of corn hybrid, were adopted trying to estimate phases of maturity of the plant (30, 34, 38, 42 and 46% of dry matter [DM]). For each maturation stage, was done separation of stem + sheath, leaf lamina, grain, cob and straw. After the weight and with posterior determination of DM crude, it was possible to obtain the concentrations and relations (%) of grain, cob + straw, ear of the corn, stem + sheath and leaf lamina in the whole plant of five hybrids at different maturation stage. For all the evaluated parameters, the hybrids were different and showed significant effect at days after seeding (DAS). It was observed that as the plant maturity stage (DAS) advanced, an increase of ear and grain concentration and a decrease of the structure component (leaf lamina, stem + sheath) in a DM the whole plant were observed.

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“…In terms of maturity, the plastic mulch advanced time to 50% silking and time to 50% kernel milk line by 10 to 15 days (Kwabiah, 2003). Huber et al (1965) noted that the physiological age of plants affects the cumulative nutrient uptake. Any effects of plastic mulch on mineral concentrations in the shoots at maturity was caused partly by the differences in the stage of maturity of the plants at which they were harvested.…”

Section: Treatment Effects On Mineral Concentrationsmentioning

confidence: 98%

Mineral Concentrations in Silage Corn (Zea mays L.) as Influenced by Hybrid and Plastic Mulch

Kwabiah

2005

Journal of New Seeds

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The use of plastic mulch at planting has enhanced germination, hastened maturity, and increased yield and quality of corn (Zea mays L.) produced in the cool climate ecosystems of Newfoundland (NL), Canada. Information on the influence of plastic mulch on mineral concentration and their associative relationships is lacking. The objectives of this study were to determine the influence of plastic mulch on (i) the concentration of P, K, Ca, Mg, Cu, Zn, and ratios of Ca/P and K/ (Ca + Mg), and (ii) the magnitude and relationship of correlation coefficients among mineral concentrations of four short-season silage corn hybrids planted under plastic mulch in the field in 2000, 2001 and 2002 at three sites near St. John's, NL. Corn hybrids were planted in late May of each year on a well drained clay loam of the Cochrane series (Orthic Humo-Ferric Podzol). The hybrids were Pioneer 39NO3, Dekalb DKC26-75, Hyland HLS014 and Pickseed ExSile, abbreviated as PI, DK, HL and EX, and having CHU ratings of 2100, 2200, 2300 and 2400, respectively. At planting, half of each plot was plastic covered (PC) and the other half was not covered (NC). The plots were harvested in early October when the kernel milk line was between 50 and 75%. There was no year effect for the measured variables. However, there were significant site ϫ hybrid interaction effects for the concentrations for all six nutrients.A. B. Kwabiah is Lead Scientist for maize research at Agriculture and Agri-Food

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Effect of Maturity on Nutritive Value of Corn Silage for Lactating Cows

Cited by 59 publications

References 4 publications

Effects of Cultivar and Maturity of Ensiled Corn Plant Fed With and Without Concentrates on the Performance of Group and Individually Fed Hereford and Angus Steers

Effects of Cultivar and Maturity of Ensiled Corn Plant Fed With and Without Concentrates on the Performance of Group and Individually Fed Hereford and Angus Steers

Avaliação de cinco híbridos de milho (Zea mays, L.) em diferentes estádios de maturação: 2. Concentrações dos componentes estruturais e correlações

Mineral Concentrations in Silage Corn (Zea mays L.) as Influenced by Hybrid and Plastic Mulch

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