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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
20/06/1995 |
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Data da última atualização: |
20/06/1995 |
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Autoria: |
DUNN, T. G.; INGALLS, J. E.; ZIMMERMAN, D. R.; WILTBANK, J. N. |
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Título: |
Reproductive performance of 2-year-old Hereford and Angus heifers as influenced by pre- and post-calving energy intake. |
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Ano de publicação: |
1969 |
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Fonte/Imprenta: |
Journal of Animal Science, v.29, p.719-726, 1969. |
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Idioma: |
Inglês |
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Conteúdo: |
The influence of pre- and post-calving energy intake was studied in 203 2-yr.-old heifers (101 Hereford and 102 Angus) nursing their first calves. Two levels of calculated digestible energy (low - 8.7 megcal. and high - 17.3 megcal.) were fed daily before calving. At calving time, the low group was divided into two groups: a low-moderate (L-M) fed 27.3 megcal, and a low-high (L-H) group fed 48.2 negcal, of digestible energy daily. The high precalving group was divided into three groups at calving time and fed three levels of energy daily: high-low (H-L) 14.2 megcal.; high-moderate (H-M) 27.3 megcal. and high-high (H-H) 48.2 megcal. The heifers were assigned to treatment 135 to 142 days prior to calving and remained onn treatment until 120 days after calving. The 60-day breeding season starded 60 days after calving. Results show that level of energy intake can markedly alter reproductive performance in 2-yr.-old heifers nursing their first calves. Pregnancy rate 120 days after calving was directly related to the post-calving energy level. Eighty-seven percent of the cows fed the high energy level after calving were pregnant compared with 72% of those fed the moderate level and 64% of those fed the low energy level (0.01% < P < 0.05). The onset of estrus was delayed in cows receiving the low level of energy before calving. The low pregnancy rate in the cows fed the low energy level after calving occurred because 30% of the Hereford cows and 9% of the Angus cows failed to show estrus (0.01 < P < 0.05). MenosThe influence of pre- and post-calving energy intake was studied in 203 2-yr.-old heifers (101 Hereford and 102 Angus) nursing their first calves. Two levels of calculated digestible energy (low - 8.7 megcal. and high - 17.3 megcal.) were fed daily before calving. At calving time, the low group was divided into two groups: a low-moderate (L-M) fed 27.3 megcal, and a low-high (L-H) group fed 48.2 negcal, of digestible energy daily. The high precalving group was divided into three groups at calving time and fed three levels of energy daily: high-low (H-L) 14.2 megcal.; high-moderate (H-M) 27.3 megcal. and high-high (H-H) 48.2 megcal. The heifers were assigned to treatment 135 to 142 days prior to calving and remained onn treatment until 120 days after calving. The 60-day breeding season starded 60 days after calving. Results show that level of energy intake can markedly alter reproductive performance in 2-yr.-old heifers nursing their first calves. Pregnancy rate 120 days after calving was directly related to the post-calving energy level. Eighty-seven percent of the cows fed the high energy level after calving were pregnant compared with 72% of those fed the moderate level and 64% of those fed the low energy level (0.01% < P < 0.05). The onset of estrus was delayed in cows receiving the low level of energy before calving. The low pregnancy rate in the cows fed the low energy level after calving occurred because 30% of the Hereford cows and 9% of the Angus cows failed to show ... Mostrar Tudo |
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Palavras-Chave: |
Bovine; l Hereford. |
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Thesagro: |
Bovino; Reprodução. |
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Thesaurus Nal: |
Angus; reproduction. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02171naa a2200229 a 4500
001 1784624
005 1995-06-20
008 1969 bl --- 0-- u #d
100 1 $aDUNN, T. G.
245 $aReproductive performance of 2-year-old Hereford and Angus heifers as influenced by pre- and post-calving energy intake.
260 $c1969
520 $aThe influence of pre- and post-calving energy intake was studied in 203 2-yr.-old heifers (101 Hereford and 102 Angus) nursing their first calves. Two levels of calculated digestible energy (low - 8.7 megcal. and high - 17.3 megcal.) were fed daily before calving. At calving time, the low group was divided into two groups: a low-moderate (L-M) fed 27.3 megcal, and a low-high (L-H) group fed 48.2 negcal, of digestible energy daily. The high precalving group was divided into three groups at calving time and fed three levels of energy daily: high-low (H-L) 14.2 megcal.; high-moderate (H-M) 27.3 megcal. and high-high (H-H) 48.2 megcal. The heifers were assigned to treatment 135 to 142 days prior to calving and remained onn treatment until 120 days after calving. The 60-day breeding season starded 60 days after calving. Results show that level of energy intake can markedly alter reproductive performance in 2-yr.-old heifers nursing their first calves. Pregnancy rate 120 days after calving was directly related to the post-calving energy level. Eighty-seven percent of the cows fed the high energy level after calving were pregnant compared with 72% of those fed the moderate level and 64% of those fed the low energy level (0.01% < P < 0.05). The onset of estrus was delayed in cows receiving the low level of energy before calving. The low pregnancy rate in the cows fed the low energy level after calving occurred because 30% of the Hereford cows and 9% of the Angus cows failed to show estrus (0.01 < P < 0.05).
650 $aAngus
650 $areproduction
650 $aBovino
650 $aReprodução
653 $aBovine
653 $al Hereford
700 1 $aINGALLS, J. E.
700 1 $aZIMMERMAN, D. R.
700 1 $aWILTBANK, J. N.
773 $tJournal of Animal Science$gv.29, p.719-726, 1969.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
27/03/2019 |
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Data da última atualização: |
27/03/2019 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
CARPANEZZI, A. A.; ZANONA, K.; VOLTZ, R. R. |
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Afiliação: |
ANTONIO APARECIDO CARPANEZZI, CNPF; Karoline Zanona, Acadêmica da UFPR; Rafael Rosenstock Voltz, Eng. Florestal, mestre em Botânica. |
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Título: |
Separação botânica de espécies de Rubus da Região Metropolitana de Curitiba. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Colombo: Embrapa Florestas, 2019. |
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Páginas: |
32 p. |
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Série: |
(Embrapa Florestas. Documentos, 326). |
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Idioma: |
Português |
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Conteúdo: |
O gênero Rubus comporta centenas de espécies, a maioria com origem em zonas temperadas do hemisfério norte. Ele desperta interesse em todo o mundo por suas interfaces com a fruticultura, a fitoterapia e a ecologia de formações naturais, onde tem papel de destaque na auto-reabilitação de ecossistemas perturbados e na alimentação da fauna silvestre. Para qualquer finalidade, a identificação botânica pronta e correta é necessária. Este artigo, com ênfase em distinção visual, examina dez táxons de Rubus, o maior número já reunido sobre o assunto, no país. As cinco espécies nativas brasileiras mais comuns estão presentes (as outras duas são endêmicas). Deste modo, pretende-se oferecer à sociedade uma ferramenta para o desenvolvimento de estudos sobre o grupo. |
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Palavras-Chave: |
Rubus brasiliensis; Rubus erythroclados; Rubus imperialis; Rubus sellowii; Rubus urticifolius; Táxons. |
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Thesagro: |
Agricultura Alternativa; Ecologia Vegetal; Morfologia Vegetal. |
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Thesaurus NAL: |
Rubus rosifolius. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/195066/1/Livro-Doc-326-1547-final.pdf
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Marc: |
LEADER 01600nam a2200277 a 4500
001 2107538
005 2019-03-27
008 2019 bl uuuu u0uu1 u #d
100 1 $aCARPANEZZI, A. A.
245 $aSeparação botânica de espécies de Rubus da Região Metropolitana de Curitiba.$h[electronic resource]
260 $aColombo: Embrapa Florestas$c2019
300 $a32 p.
490 $a(Embrapa Florestas. Documentos, 326).
520 $aO gênero Rubus comporta centenas de espécies, a maioria com origem em zonas temperadas do hemisfério norte. Ele desperta interesse em todo o mundo por suas interfaces com a fruticultura, a fitoterapia e a ecologia de formações naturais, onde tem papel de destaque na auto-reabilitação de ecossistemas perturbados e na alimentação da fauna silvestre. Para qualquer finalidade, a identificação botânica pronta e correta é necessária. Este artigo, com ênfase em distinção visual, examina dez táxons de Rubus, o maior número já reunido sobre o assunto, no país. As cinco espécies nativas brasileiras mais comuns estão presentes (as outras duas são endêmicas). Deste modo, pretende-se oferecer à sociedade uma ferramenta para o desenvolvimento de estudos sobre o grupo.
650 $aRubus rosifolius
650 $aAgricultura Alternativa
650 $aEcologia Vegetal
650 $aMorfologia Vegetal
653 $aRubus brasiliensis
653 $aRubus erythroclados
653 $aRubus imperialis
653 $aRubus sellowii
653 $aRubus urticifolius
653 $aTáxons
700 1 $aZANONA, K.
700 1 $aVOLTZ, R. R.
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