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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
19/09/2017 |
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Data da última atualização: |
19/09/2017 |
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Autoria: |
CLANTON, D. C.; HARRIS, L. E.; BUTCHER, J. E. |
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Título: |
Effect of nutrition on the productivity of range sheep. |
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Ano de publicação: |
1959 |
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Fonte/Imprenta: |
Journal of Animal Science, v. 18, n. 4, p. 1416-1429, Nov. 1959. |
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ISBN: |
10.2527/jas1959.1841416x |
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Idioma: |
Inglês |
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Conteúdo: |
Four hundred and fifty range ewes from each of two owners consisting of six age groups were maintained on desert-type winter range during the winter of 1954?55. Ten treatments including range forage only, and supplemental feeds of energy, protein and phosphorus during three seasons, November to April, January to April, and January to March were used. Body condition changes are introduced as a measure of response. They help define body weight and they show that ewe gains in the spring are not necessarily due to increased flesh on the ewe. Comparison of treated animals to nontreated animals did indicate definite improvement in maintenance of body weight and condition during the winter, in wool production and in lamb birth weights but not weaning weights. Differential feed treatments indicated no difference in lamb production among kinds of supplement and season. The midwinter fed groups produced more wool than those fed during other seasons. Kind of supplement had no effect on wool production. Protein feed and all-winter feeding maintained body weight and condition better than other combinations of feeding. Three-year-old ewes followed by 4-year-olds produced the most pounds of lamb. Yearlings, 2-year olds and 3-year-olds had nearly the same wool production. When combining lamb and wool production the 3- and 4-year-olds were the best producers. The yearling ewes maintained weight and condition better than the other age groups. Large ownership differences were observed. Owner 1's ewes lost more body weight and condition, produced more pounds of lamb and less wool than the ewes from Owner 2. These ownership differences, apparently due to previous genetic and environmental influences, emphasize another problem in the interpretation of nutrition experiments. MenosFour hundred and fifty range ewes from each of two owners consisting of six age groups were maintained on desert-type winter range during the winter of 1954?55. Ten treatments including range forage only, and supplemental feeds of energy, protein and phosphorus during three seasons, November to April, January to April, and January to March were used. Body condition changes are introduced as a measure of response. They help define body weight and they show that ewe gains in the spring are not necessarily due to increased flesh on the ewe. Comparison of treated animals to nontreated animals did indicate definite improvement in maintenance of body weight and condition during the winter, in wool production and in lamb birth weights but not weaning weights. Differential feed treatments indicated no difference in lamb production among kinds of supplement and season. The midwinter fed groups produced more wool than those fed during other seasons. Kind of supplement had no effect on wool production. Protein feed and all-winter feeding maintained body weight and condition better than other combinations of feeding. Three-year-old ewes followed by 4-year-olds produced the most pounds of lamb. Yearlings, 2-year olds and 3-year-olds had nearly the same wool production. When combining lamb and wool production the 3- and 4-year-olds were the best producers. The yearling ewes maintained weight and condition better than the other age groups. Large ownership differences were observed. Owner 1... Mostrar Tudo |
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Palavras-Chave: |
Productivity. |
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Thesaurus Nal: |
Animal nutrition; Ewes; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02292naa a2200193 a 4500
001 2075899
005 2017-09-19
008 1959 bl uuuu u00u1 u #d
100 1 $aCLANTON, D. C.
245 $aEffect of nutrition on the productivity of range sheep.
260 $c1959
520 $aFour hundred and fifty range ewes from each of two owners consisting of six age groups were maintained on desert-type winter range during the winter of 1954?55. Ten treatments including range forage only, and supplemental feeds of energy, protein and phosphorus during three seasons, November to April, January to April, and January to March were used. Body condition changes are introduced as a measure of response. They help define body weight and they show that ewe gains in the spring are not necessarily due to increased flesh on the ewe. Comparison of treated animals to nontreated animals did indicate definite improvement in maintenance of body weight and condition during the winter, in wool production and in lamb birth weights but not weaning weights. Differential feed treatments indicated no difference in lamb production among kinds of supplement and season. The midwinter fed groups produced more wool than those fed during other seasons. Kind of supplement had no effect on wool production. Protein feed and all-winter feeding maintained body weight and condition better than other combinations of feeding. Three-year-old ewes followed by 4-year-olds produced the most pounds of lamb. Yearlings, 2-year olds and 3-year-olds had nearly the same wool production. When combining lamb and wool production the 3- and 4-year-olds were the best producers. The yearling ewes maintained weight and condition better than the other age groups. Large ownership differences were observed. Owner 1's ewes lost more body weight and condition, produced more pounds of lamb and less wool than the ewes from Owner 2. These ownership differences, apparently due to previous genetic and environmental influences, emphasize another problem in the interpretation of nutrition experiments.
650 $aAnimal nutrition
650 $aEwes
650 $aSheep
653 $aProductivity
700 1 $aHARRIS, L. E.
700 1 $aBUTCHER, J. E.
773 $tJournal of Animal Science$gv. 18, n. 4, p. 1416-1429, Nov. 1959.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
18/12/2018 |
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Data da última atualização: |
18/12/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
DE SÁ, E. F. G. G.; RODRIGUES, V. DA S.; GARCIA, M. V.; ZIMMERMANN, N. P.; RAMOS, V. Do N.; BLECHA, I. M. Z.; DUARTE, P. De O.; MARTINS, T. F.; BORDIGNON, M. O.; ANDREOTTI, R. |
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Afiliação: |
Érica Fernanda G. Gomes De Sá, Programa de Pós-Graduação em Biologia Animal/Centro de Ciências Biológicas e da Saúde/Universidade Federal de Mato Grosso do Sul - UFMS; Vinicius Da Silva Rodrigues, Pós-Graduação em Doenças Infecciosas e Parasitárias - FAMED/Universidade Federal de Mato Grosso do Sul - UFMS/Laboratório de Biologia do Carrapato, Embrapa Gado de Corte; Marcos Valério Garcia, Laboratório de Biologia do Carrapato/EMBRAPA Gado de Corte; Namor Pinheiro Zimmermann, Centro Universitário da Grande Dourados; Vanessa Do Nascimento Ramos, Pós-doutoranda em Ecologia de carrapatos /Faculdade de Medicina Veterinária e Zootecnia da USP; Isabella Maiumi Zaidan Blecha, Programa de Pós-graduação Ciência Anima/Universidade Federal de Mato Grosso do Sul - UFMS/Embrapa Gado de Corte; Pâmella De Oliveira Duarte, Pós-Graduação em Doenças Infecciosas e Parasitárias - FAMED/Universidade Federal de Mato Grosso do Sul - UFMS/Laboratório de Biologia do Carrapato, Embrapa Gado de Corte; Thiago Fernandes Martins, Departamento de Medicina Veterinária Preventiva e Saúde Animal /Faculdade de Medicina Veterinária e Zootecnia - Universidade de São Paulo - USP; Marcelo Oscar Bordignon, CNPGC; RENATO ANDREOTTI E SILVA, CNPGC. |
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Título: |
Ticks on Didelphis albiventris from a Cerrado area in the Midwestern Brazil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Systematic and Applied Acarology, v. 23, n. 5, p. 935-945, May 2018 |
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Idioma: |
Inglês |
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Conteúdo: |
This experiment studied tick fauna associated to Didelphis albiventris Lund 1840 from a Cerrado area (Mato Grosso do Sul State, non-adjoining to Pantanal) inserted in a pasture and agricultural activities matrix, with few natural preserved forest patches. Authors also summarized data on ticks parasitizing Didelphis spp. in Brazil, and discussed infestation patterns in different biomes and locations. Study took place in Cervinho Farm, Bandeirantes Municipality. For captures, Tomahawk-like traps were distributed along two forest patches (30 each) during five nights. Captures occurred monthly (July/2013 to September/2014), sampling both fragments on alternate months. Animals were sedated and ticks were collected and stored in vials containing ethanol (70%) for identification. 51 D. albiventris were captured in 15 campaigns. Tick prevalence was 100%, and 49.5% of the animals were co-infested by two or more tick species. Four parasitizing species were found: Amblyomma sculptum Berlese, 1888 (78 nymphs), Ixodes loricatus Neumann, 1899 (56 adults), Amblyomma dubitatum Neumann, 1899 (45 nymphs), Amblyomma coelebs Neumann, 1899 (32 nymphs) and Amblyomma sp. (123 larvae). A. sculptum was the most abundant tick, but most frequent species were A. coelebs and A. dubitatum, followed by I. loricatus. Co-occurrences of more than two species were observed among all tick pairs. D. albiventris usually presents high prevalence of tick infestation. However, this study presented 100% prevalence. Knowledge of host-parasite relation and interactions between different ticks that coexist on a same host are essential, since such interaction may favor pathogen dissemination. This is of special relevance regarding D. albiventris, known for participating in maintenance of ecological cycles of Spotted Fever Group rickettsiae. MenosThis experiment studied tick fauna associated to Didelphis albiventris Lund 1840 from a Cerrado area (Mato Grosso do Sul State, non-adjoining to Pantanal) inserted in a pasture and agricultural activities matrix, with few natural preserved forest patches. Authors also summarized data on ticks parasitizing Didelphis spp. in Brazil, and discussed infestation patterns in different biomes and locations. Study took place in Cervinho Farm, Bandeirantes Municipality. For captures, Tomahawk-like traps were distributed along two forest patches (30 each) during five nights. Captures occurred monthly (July/2013 to September/2014), sampling both fragments on alternate months. Animals were sedated and ticks were collected and stored in vials containing ethanol (70%) for identification. 51 D. albiventris were captured in 15 campaigns. Tick prevalence was 100%, and 49.5% of the animals were co-infested by two or more tick species. Four parasitizing species were found: Amblyomma sculptum Berlese, 1888 (78 nymphs), Ixodes loricatus Neumann, 1899 (56 adults), Amblyomma dubitatum Neumann, 1899 (45 nymphs), Amblyomma coelebs Neumann, 1899 (32 nymphs) and Amblyomma sp. (123 larvae). A. sculptum was the most abundant tick, but most frequent species were A. coelebs and A. dubitatum, followed by I. loricatus. Co-occurrences of more than two species were observed among all tick pairs. D. albiventris usually presents high prevalence of tick infestation. However, this study presented 100% prevalence. ... Mostrar Tudo |
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Palavras-Chave: |
Central West; Co-infestation. |
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Thesaurus NAL: |
Brazil; Opossums; Ticks. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/188737/1/Ticks-on-Didelphis-albiventris.pdf
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Marc: |
LEADER 02644naa a2200289 a 4500
001 2101860
005 2018-12-18
008 2018 bl uuuu u00u1 u #d
100 1 $aDE SÁ, E. F. G. G.
245 $aTicks on Didelphis albiventris from a Cerrado area in the Midwestern Brazil.$h[electronic resource]
260 $c2018
520 $aThis experiment studied tick fauna associated to Didelphis albiventris Lund 1840 from a Cerrado area (Mato Grosso do Sul State, non-adjoining to Pantanal) inserted in a pasture and agricultural activities matrix, with few natural preserved forest patches. Authors also summarized data on ticks parasitizing Didelphis spp. in Brazil, and discussed infestation patterns in different biomes and locations. Study took place in Cervinho Farm, Bandeirantes Municipality. For captures, Tomahawk-like traps were distributed along two forest patches (30 each) during five nights. Captures occurred monthly (July/2013 to September/2014), sampling both fragments on alternate months. Animals were sedated and ticks were collected and stored in vials containing ethanol (70%) for identification. 51 D. albiventris were captured in 15 campaigns. Tick prevalence was 100%, and 49.5% of the animals were co-infested by two or more tick species. Four parasitizing species were found: Amblyomma sculptum Berlese, 1888 (78 nymphs), Ixodes loricatus Neumann, 1899 (56 adults), Amblyomma dubitatum Neumann, 1899 (45 nymphs), Amblyomma coelebs Neumann, 1899 (32 nymphs) and Amblyomma sp. (123 larvae). A. sculptum was the most abundant tick, but most frequent species were A. coelebs and A. dubitatum, followed by I. loricatus. Co-occurrences of more than two species were observed among all tick pairs. D. albiventris usually presents high prevalence of tick infestation. However, this study presented 100% prevalence. Knowledge of host-parasite relation and interactions between different ticks that coexist on a same host are essential, since such interaction may favor pathogen dissemination. This is of special relevance regarding D. albiventris, known for participating in maintenance of ecological cycles of Spotted Fever Group rickettsiae.
650 $aBrazil
650 $aOpossums
650 $aTicks
653 $aCentral West
653 $aCo-infestation
700 1 $aRODRIGUES, V. DA S.
700 1 $aGARCIA, M. V.
700 1 $aZIMMERMANN, N. P.
700 1 $aRAMOS, V. Do N.
700 1 $aBLECHA, I. M. Z.
700 1 $aDUARTE, P. De O.
700 1 $aMARTINS, T. F.
700 1 $aBORDIGNON, M. O.
700 1 $aANDREOTTI, R.
773 $tSystematic and Applied Acarology$gv. 23, n. 5, p. 935-945, May 2018
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