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Registro Completo |
Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
10/01/2010 |
Data da última atualização: |
28/01/2019 |
Autoria: |
LUTTRELL, E. S. |
Título: |
A taxonomic revision of Helminthosporium sativum and related species. |
Ano de publicação: |
1955 |
Fonte/Imprenta: |
American Journal of Botany, v. 42, n. 1, p. 57-68, Jan. 1955. |
DOI: |
DOI: 10.2307/2438594 |
Idioma: |
Inglês |
Conteúdo: |
On the basis of a comparison of type specimens and morphological, cultural, and pathologic studies of a series of fresh collections, Helminthosporium sativum P. K. & B., H. acrothecioides Lindfors, and H. californicum Mackie & Paaton are placed in synonomy with H. sorokinianum Sacc. ex Sorokin. H. sorokinianum is characterized by broad, straight, ellipsoid to fusoid, thick-walled, dark olivaceous brown conidia. Extreme types found in the field assume these common characteristics in culture. They are considered growth forms. H. sorokinianum is a variable species, comprising a number of strains differing in degree of pathogenicity on various cereals and grasses. Helminthosporium victoriae Meehan & Murphy and H. setariae Saw. (synonym H. setariae Lind) differ from H. sorokinianum in their narrower, more frequently curved, thinner-walled, paler-colored conidia. H. victoriae and H. setariae are morphologically alike but are tentatively separated on the basis of pathogenicity, H. victoriae including strains causing Victoria blight of oats, H. setariae those infecting Setaria spp. but not oats. H. victoriae and H. setariae are more closely related to species in the H. oryzae-sacchari complex than to H. sorokinianum. |
Thesagro: |
Fungo; Taxonomia. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01674naa a2200157 a 4500 001 1829728 005 2019-01-28 008 1955 bl --- 0-- u #d 024 7 $aDOI: 10.2307/2438594$2DOI 100 1 $aLUTTRELL, E. S. 245 $aA taxonomic revision of Helminthosporium sativum and related species. 260 $c1955 520 $aOn the basis of a comparison of type specimens and morphological, cultural, and pathologic studies of a series of fresh collections, Helminthosporium sativum P. K. & B., H. acrothecioides Lindfors, and H. californicum Mackie & Paaton are placed in synonomy with H. sorokinianum Sacc. ex Sorokin. H. sorokinianum is characterized by broad, straight, ellipsoid to fusoid, thick-walled, dark olivaceous brown conidia. Extreme types found in the field assume these common characteristics in culture. They are considered growth forms. H. sorokinianum is a variable species, comprising a number of strains differing in degree of pathogenicity on various cereals and grasses. Helminthosporium victoriae Meehan & Murphy and H. setariae Saw. (synonym H. setariae Lind) differ from H. sorokinianum in their narrower, more frequently curved, thinner-walled, paler-colored conidia. H. victoriae and H. setariae are morphologically alike but are tentatively separated on the basis of pathogenicity, H. victoriae including strains causing Victoria blight of oats, H. setariae those infecting Setaria spp. but not oats. H. victoriae and H. setariae are more closely related to species in the H. oryzae-sacchari complex than to H. sorokinianum. 650 $aFungo 650 $aTaxonomia 773 $tAmerican Journal of Botany$gv. 42, n. 1, p. 57-68, Jan. 1955.
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Embrapa Cerrados. |
Data corrente: |
26/09/2022 |
Data da última atualização: |
26/09/2022 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
FERNANDES, L. O.; PASCHOAL, J. J.; MACIEL, G. A.; BRAGA, G. J.; REIS, N. J. C.; PAIVA, M. I. de. |
Afiliação: |
LEONARDO OLIVEIRA FERNANDES; JULIANA JORGE PASCHOAL; GIOVANA ALCANTARA MACIEL, CPAC; GUSTAVO JOSE BRAGA, CPAC; NÍNIVE JHORS CARNEIRO REIS; MARCIA INGRID DE PAIVA. |
Título: |
Feed efficiency of Nellore young bull in the feedlot. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
In: REUNIÃO DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 57., 2022, Campinas. Tropical animal science and pratice to feed the planet: proceedings. Brasília, DF: SBZ; São Carlos, SP: Embrapa Pecuária Sudeste, 2022. |
Páginas: |
p. 128 |
Idioma: |
Inglês |
Conteúdo: |
The objective of the study was to evaluate feed efficiency of Nellore young bull in the feedlot using the evaluation of the residual feed intake (RFI). The experiment was carried out at the experimental farm Orestes Prata Tibery Júnior (ABCZ), located in Uberaba, MG, Brazil (lat. 19º 47' 68" S.; long. 47º 58' 50'' W, 788 m West). Nellore young bulls (n = 101), pure breed, with initial age of 17 months and mean live weight of 486 kg were housed in a feedlot containing electronic troughs and weighing scales. The experimental period lasted 98 days, with 28 of adaptation and 70 days of evaluation, from 03/17/2021 to 06/23/2021. The diet was formulated to provide 1.700 kg live weight/head/day and had a forage:concentrate ratio of 40:60, with 40% of corn silage and 60% of concentrate, containing 15.3% CP and 76.8% TDN on dry matter (DM) basis. The RFI was determined during the experimental period and the animals were separated in two experimental groups: positive and negative RFI. It was evaluated average daily gain (ADG), feed conversion (FC), daily dry matter intake (DMI) and gross feed efficiency (GFE). The experimental design was completely randomized and means were compared using Tukey test at 5% significance. In the evaluation of 101 young bulls, 56 had negative RFI and 45 had positive RFI, about 55.4% had lower DMI compared to estimated, which was considered the most efficient. The difference between the lowest and the highest individual intake followed was -1.87 kg (negative RFI) and 3.52 kg (positive RFI), with the difference of 5.39 kg of RFI, showing variability and chance of selection for more efficient and lower cost young bulls. It was observed effect of youn bull RFI group on DMI - 13.59 and 12.05 kg/day, and 2.51 and 2.24% LW, respectively for positive and negative RFI. There was a reduction of 11.3% in DMI during the experimental period. Feed conversion (6.28 and 6.93 kg of DM/kg ADG for negative and positive RFI) and GFE (0.16 and 0.15 kg ADG/kg DMI for negative and positive RFI) were influenced by RFI group. There was no effect (P>0.05) of RFI group on ADG - 1.95 (negative RFI) and 1.98 kg/head/day (positive RFI). Young bulls presenting negative RFI had lower intake with the same ADG, enabling better-feed conversion in the finishing phase, which directly affects the reduction of feed and production costs. MenosThe objective of the study was to evaluate feed efficiency of Nellore young bull in the feedlot using the evaluation of the residual feed intake (RFI). The experiment was carried out at the experimental farm Orestes Prata Tibery Júnior (ABCZ), located in Uberaba, MG, Brazil (lat. 19º 47' 68" S.; long. 47º 58' 50'' W, 788 m West). Nellore young bulls (n = 101), pure breed, with initial age of 17 months and mean live weight of 486 kg were housed in a feedlot containing electronic troughs and weighing scales. The experimental period lasted 98 days, with 28 of adaptation and 70 days of evaluation, from 03/17/2021 to 06/23/2021. The diet was formulated to provide 1.700 kg live weight/head/day and had a forage:concentrate ratio of 40:60, with 40% of corn silage and 60% of concentrate, containing 15.3% CP and 76.8% TDN on dry matter (DM) basis. The RFI was determined during the experimental period and the animals were separated in two experimental groups: positive and negative RFI. It was evaluated average daily gain (ADG), feed conversion (FC), daily dry matter intake (DMI) and gross feed efficiency (GFE). The experimental design was completely randomized and means were compared using Tukey test at 5% significance. In the evaluation of 101 young bulls, 56 had negative RFI and 45 had positive RFI, about 55.4% had lower DMI compared to estimated, which was considered the most efficient. The difference between the lowest and the highest individual intake followed was -1.87 kg (negati... Mostrar Tudo |
Thesagro: |
Ganho de Peso. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146825/1/Giovana-Maciel-Feed-efficiency-of-Nellore.pdf
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Marc: |
LEADER 03062nam a2200193 a 4500 001 2146825 005 2022-09-26 008 2022 bl uuuu u00u1 u #d 100 1 $aFERNANDES, L. O. 245 $aFeed efficiency of Nellore young bull in the feedlot.$h[electronic resource] 260 $aIn: REUNIÃO DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 57., 2022, Campinas. Tropical animal science and pratice to feed the planet: proceedings. Brasília, DF: SBZ; São Carlos, SP: Embrapa Pecuária Sudeste$c2022 300 $ap. 128 520 $aThe objective of the study was to evaluate feed efficiency of Nellore young bull in the feedlot using the evaluation of the residual feed intake (RFI). The experiment was carried out at the experimental farm Orestes Prata Tibery Júnior (ABCZ), located in Uberaba, MG, Brazil (lat. 19º 47' 68" S.; long. 47º 58' 50'' W, 788 m West). Nellore young bulls (n = 101), pure breed, with initial age of 17 months and mean live weight of 486 kg were housed in a feedlot containing electronic troughs and weighing scales. The experimental period lasted 98 days, with 28 of adaptation and 70 days of evaluation, from 03/17/2021 to 06/23/2021. The diet was formulated to provide 1.700 kg live weight/head/day and had a forage:concentrate ratio of 40:60, with 40% of corn silage and 60% of concentrate, containing 15.3% CP and 76.8% TDN on dry matter (DM) basis. The RFI was determined during the experimental period and the animals were separated in two experimental groups: positive and negative RFI. It was evaluated average daily gain (ADG), feed conversion (FC), daily dry matter intake (DMI) and gross feed efficiency (GFE). The experimental design was completely randomized and means were compared using Tukey test at 5% significance. In the evaluation of 101 young bulls, 56 had negative RFI and 45 had positive RFI, about 55.4% had lower DMI compared to estimated, which was considered the most efficient. The difference between the lowest and the highest individual intake followed was -1.87 kg (negative RFI) and 3.52 kg (positive RFI), with the difference of 5.39 kg of RFI, showing variability and chance of selection for more efficient and lower cost young bulls. It was observed effect of youn bull RFI group on DMI - 13.59 and 12.05 kg/day, and 2.51 and 2.24% LW, respectively for positive and negative RFI. There was a reduction of 11.3% in DMI during the experimental period. Feed conversion (6.28 and 6.93 kg of DM/kg ADG for negative and positive RFI) and GFE (0.16 and 0.15 kg ADG/kg DMI for negative and positive RFI) were influenced by RFI group. There was no effect (P>0.05) of RFI group on ADG - 1.95 (negative RFI) and 1.98 kg/head/day (positive RFI). Young bulls presenting negative RFI had lower intake with the same ADG, enabling better-feed conversion in the finishing phase, which directly affects the reduction of feed and production costs. 650 $aGanho de Peso 700 1 $aPASCHOAL, J. J. 700 1 $aMACIEL, G. A. 700 1 $aBRAGA, G. J. 700 1 $aREIS, N. J. C. 700 1 $aPAIVA, M. I. de
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