Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
01/08/1992 |
Data da última atualização: |
29/03/2023 |
Autoria: |
WATSON, T. G.; BAKER, R. L.; HARVEY, T. G. |
Título: |
Genetic variation in resistance ot tolerance to internal nematode parasites in strains or sheep at Rotomahana. |
Ano de publicação: |
1986 |
Fonte/Imprenta: |
Proceedings New Zealand Society Animal Production, v. 46, p. 23-26, 1986. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Fifty-six pregnant Romney ewes grazing a ryegrass/white clover pasture were divided into 7 groups of 8 and slaughtered at days 62, 81, 100, 115, 125, 135 and 143 of gestation to remove the conceptus (uterine tissue and membranes, placental fluids and the foetus[es] and determine its total Cu, Zn, Fe, Mn and Se content. The uterus was also removed from 8 ewes just prior to mating. Half the ewes had twin foetuses. The daily rates of deposition of Cu, Zn, Fe, Mn and Se were calculated from the slope of the curves relating the gestational age with the net trace element content of the conceptus. The dietary allowance of Cu, Zn, Fe, Mn and Se for the pregnant ewe was then calculated from the daily deposition rates into the conceptus, determined from this study, and published data on the net requirements for maintenance, coefficients of absorption and DM intakes. The calculated dietary allowances (per kg DM) for single- and twin-bearing ewes, were 7.4 mg Cu, 24 mg Zn, 36 mg Fe, 30 mg Mn and 33 |
Palavras-Chave: |
Nematode; Nematodeo; Resistance. |
Thesagro: |
Anti-Helmíntico; Ovino; Parasitologia; Resistência. |
Thesaurus Nal: |
Animal parasitic nematodes; Correlation; Gastrointestinal nematodes; Heritability; Parasites; Sheep diseases; Strains. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 01916naa a2200313 a 4500 001 1520085 005 2023-03-29 008 1986 bl uuuu u00u1 u #d 100 1 $aWATSON, T. G. 245 $aGenetic variation in resistance ot tolerance to internal nematode parasites in strains or sheep at Rotomahana.$h[electronic resource] 260 $c1986 520 $aAbstract: Fifty-six pregnant Romney ewes grazing a ryegrass/white clover pasture were divided into 7 groups of 8 and slaughtered at days 62, 81, 100, 115, 125, 135 and 143 of gestation to remove the conceptus (uterine tissue and membranes, placental fluids and the foetus[es] and determine its total Cu, Zn, Fe, Mn and Se content. The uterus was also removed from 8 ewes just prior to mating. Half the ewes had twin foetuses. The daily rates of deposition of Cu, Zn, Fe, Mn and Se were calculated from the slope of the curves relating the gestational age with the net trace element content of the conceptus. The dietary allowance of Cu, Zn, Fe, Mn and Se for the pregnant ewe was then calculated from the daily deposition rates into the conceptus, determined from this study, and published data on the net requirements for maintenance, coefficients of absorption and DM intakes. The calculated dietary allowances (per kg DM) for single- and twin-bearing ewes, were 7.4 mg Cu, 24 mg Zn, 36 mg Fe, 30 mg Mn and 33 650 $aAnimal parasitic nematodes 650 $aCorrelation 650 $aGastrointestinal nematodes 650 $aHeritability 650 $aParasites 650 $aSheep diseases 650 $aStrains 650 $aAnti-Helmíntico 650 $aOvino 650 $aParasitologia 650 $aResistência 653 $aNematode 653 $aNematodeo 653 $aResistance 700 1 $aBAKER, R. L. 700 1 $aHARVEY, T. G. 773 $tProceedings New Zealand Society Animal Production$gv. 46, p. 23-26, 1986.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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