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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
12/10/2022 |
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Data da última atualização: |
03/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARIN, F. R.; ZANON, A. J.; MONZON, J. P.; ANDRADE, J. F.; SILVA, E. H. F. M.; RICHTER, G. L.; ANTOLIN, L. A. S.; RIBEIRO, B. S. M. R.; RIBAS, G. G.; BATTISTI, R.; HEINEMANN, A. B.; GRASSINI, P. |
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Afiliação: |
FABIO R. MARIN, ESALQ; ALENCAR J. ZANON, UNIVERSIDADE FEDERAL DE SANTA MARIA; JUAN P. MONZON, UNIVERSIT OF NEBRASKA; JOSÉ F. ANDRADE, UNIVERSITY OF NEBRASKA; EVANDRO H. F. M. SILVA, ESALQ; GEAN L. RICHTER, UNIVERSIDADE FEDERAL DE SANTA MARIA; LUIS A. S. ANTOLIN, ESALQ; BRUNA S. M. R. RIBEIRO, UNIVERSIDADE FEDERAL DE SANTA MARIA; GIOVANA G. RIBAS, UNIVERSIDADE FEDERAL DE SANTA MARIA; RAFAEL BATTISTI, UNIVERSIDADE FEDERAL DE GOIÁS; ALEXANDRE BRYAN HEINEMANN, CNPAF; PATRICIO GRASSINI, UNIVERSITY OF NEBRASKA. |
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Título: |
Protecting the Amazon forest and reducing global warming via agricultural intensification. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Nature Sustainability, v. 5, p. 1018-1026, Dec. 2022. |
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ISSN: |
2398-9629 |
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DOI: |
https://doi.org/10.1038/s41893-022-00968-8 |
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Idioma: |
Inglês |
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Conteúdo: |
The Amazon basin includes 550 Mha covered with rainforests, and 60% of this area is in Brazil. The conversion of rainforest for soybean production raises concerns about how Brazil can reconcile production and environmental goals. Here we investigated the degree to which intensification could help Brazil produce more soybean without further encroachment on the Amazon forest. Our analysis shows that the continuation of current trends in soybean yield and area would lead to the conversion of an additional 5.7 Mha of forests and savannahs during the next 15 years, with an associated 1,955 Mt of CO2e released into the atmosphere. In contrast, the acceleration of yield improvement, coupled with the expansion of soybean area only in areas currently used for livestock production, would allow Brazil to produce 162 Mt of soybean without deforestation and with 58% lower global climate warming relative to that derived from the continuation of current trends. |
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Thesagro: |
Proteção Florestal; Soja. |
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Thesaurus Nal: |
Crop yield; Forest plantations; Global warming; Land use change; Soybeans; Sustainable agricultural intensification; Yields. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02074naa a2200385 a 4500
001 2147300
005 2023-02-03
008 2022 bl uuuu u00u1 u #d
022 $a2398-9629
024 7 $ahttps://doi.org/10.1038/s41893-022-00968-8$2DOI
100 1 $aMARIN, F. R.
245 $aProtecting the Amazon forest and reducing global warming via agricultural intensification.$h[electronic resource]
260 $c2022
520 $aThe Amazon basin includes 550 Mha covered with rainforests, and 60% of this area is in Brazil. The conversion of rainforest for soybean production raises concerns about how Brazil can reconcile production and environmental goals. Here we investigated the degree to which intensification could help Brazil produce more soybean without further encroachment on the Amazon forest. Our analysis shows that the continuation of current trends in soybean yield and area would lead to the conversion of an additional 5.7 Mha of forests and savannahs during the next 15 years, with an associated 1,955 Mt of CO2e released into the atmosphere. In contrast, the acceleration of yield improvement, coupled with the expansion of soybean area only in areas currently used for livestock production, would allow Brazil to produce 162 Mt of soybean without deforestation and with 58% lower global climate warming relative to that derived from the continuation of current trends.
650 $aCrop yield
650 $aForest plantations
650 $aGlobal warming
650 $aLand use change
650 $aSoybeans
650 $aSustainable agricultural intensification
650 $aYields
650 $aProteção Florestal
650 $aSoja
700 1 $aZANON, A. J.
700 1 $aMONZON, J. P.
700 1 $aANDRADE, J. F.
700 1 $aSILVA, E. H. F. M.
700 1 $aRICHTER, G. L.
700 1 $aANTOLIN, L. A. S.
700 1 $aRIBEIRO, B. S. M. R.
700 1 $aRIBAS, G. G.
700 1 $aBATTISTI, R.
700 1 $aHEINEMANN, A. B.
700 1 $aGRASSINI, P.
773 $tNature Sustainability$gv. 5, p. 1018-1026, Dec. 2022.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Classificação |
Cutter |
Registro |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Rondônia. |
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Data corrente: |
29/06/2023 |
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Data da última atualização: |
18/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SILVA, S. A.; MONDADORI, R. G.; NOLETO, G. S.; BARBOSA, I. P.; GONÇALVES, R. L.; GASPERIN, B. G.; ROVANI, M. T.; PAZ, E. F.; GOMES, L. S.; PFEIFER, L. F. M. |
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Afiliação: |
SAMIRA A. SILVA, UNIVERSIDADE FEDERAL DE PELOTAS; RAFAEL G. MONDADORI, UNIVERSIDADE FEDERAL DE PELOTAS; GABRIELLY S. NOLETO, UNIVERSIDADE FEDERAL DE RONDÔNIA; INGRID P. BARBOSA, UNIVERSIDADE FEDERAL DO ACRE; REUEL L. GONÇALVES, BIOGENESIS BAGO SAÚDE ANIMAL; BERNARDO G. GASPERIN, UNIVERSIDADE FEDERAL DE PELOTAS; MONIQUE T. ROVANI, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; EANES F. PAZ, ASSITÊNCIA TÉCNICA E EXTENSÃO RURAL; LEONARDO S. GOMES, Embrapa Rondônia; LUIZ FRANCISCO MACHADO PFEIFER, CPAF-RO. |
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Título: |
GnRH34 with or without estradiol cypionate in timed AI in Bos indicus beef cows. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Theriogenology, v. 209, p. 134-140, 2023. |
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ISSN: |
0093-691X |
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DOI: |
https://doi.org/10.1016/j.theriogenology.2023.06.026 |
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Idioma: |
Inglês |
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Conteúdo: |
Two experiments were performed to evaluate the effects of GnRH treatment on the fertility of suckled Nelore beef cows treated with an estradiol/progesterone (E2/P4)-based protocol for timed artificial insemination (TAI). Experiment 1 focused on determining the effects of estradiol cypionate (EC) on ovulation in TAI cows treated with GnRH 34 h after removal of the intravaginal P4 device (IPD). Suckled cows (n ¼ 26) were treated with 2 mg estradiol benzoate (EB) and IPD containing 1 g P4. After 8 days, IPDs were removed, and all cows were treated with 150 mg of d-cloprostenol (prostaglandin F2 alpha analog) and 300 IU of equine chorionic gonadotropin (eCG), then separated into two treatment groups consisting of cows who received 1) saline 0.9% i.m. (GnRH34 group) or 2) 0.6 mg i.m. of EC (EC-GnRH34 group). On day 9 (05:00 p.m.), all cows were given GnRH (10.5 mg of buserelin acetate) i.m. No differences were observed between the groups (P > 0.05) in the time of ovulation after IPD removal or in the proportion of cows ovulating. Experiment 2 focused on determining the effects of GnRH34 along with or in the absence of EC on day 8 on pregnancy per AI (P/AI) in postpartum beef cows. Cows (n ¼ 981) were treated similarly to those in Experiment 1, but an additional group, the EC-GnRH48 group, was included, in which cows received EC on day 8 whereas those that did not show estrus received GnRH at TAI. Thus, in this experiment, groups consisted of GnRH34 (n ¼ 322), EC-GnRH34 (n ¼ 335), and EC-GnRH48 (n ¼ 324). A higher rate of estrus expression was observed in cows treated with EC following IPD removal (EC-GnRH34: 69%, EC-GnRH48: 64.8%) than in cows in the GnRH34 group (45.6%). No difference in P/AI was observed between the treatment groups (P ¼ 0.45), but P/AI in cows in the EC-GnRH34 group (64.2%) tended to be greater (P ¼ 0.1) than in cows in the GnRH34 group (58%). In summary, although ovulation synchrony did not differ among the groups, P/AI in cows treated with EC and GnRH 34 h after IPD removal tended to be greater than in cows treated solely with GnRH; this was most likely due to a shorter proestrus/estrus period, considering the lower proportion of cows that displayed estrus in the GnRH34 group. Finally, given that P/AI did not differ between the EC-GnRH34 and EC-GnRH48 groups, our results suggest that, for cows not displaying estrus, administration of EC at the time of IPD removal followed by treatment with GnRH 48 h afterward represents the most cost-efficient TAI strategy for South American Zebu-based beef operations. MenosTwo experiments were performed to evaluate the effects of GnRH treatment on the fertility of suckled Nelore beef cows treated with an estradiol/progesterone (E2/P4)-based protocol for timed artificial insemination (TAI). Experiment 1 focused on determining the effects of estradiol cypionate (EC) on ovulation in TAI cows treated with GnRH 34 h after removal of the intravaginal P4 device (IPD). Suckled cows (n ¼ 26) were treated with 2 mg estradiol benzoate (EB) and IPD containing 1 g P4. After 8 days, IPDs were removed, and all cows were treated with 150 mg of d-cloprostenol (prostaglandin F2 alpha analog) and 300 IU of equine chorionic gonadotropin (eCG), then separated into two treatment groups consisting of cows who received 1) saline 0.9% i.m. (GnRH34 group) or 2) 0.6 mg i.m. of EC (EC-GnRH34 group). On day 9 (05:00 p.m.), all cows were given GnRH (10.5 mg of buserelin acetate) i.m. No differences were observed between the groups (P > 0.05) in the time of ovulation after IPD removal or in the proportion of cows ovulating. Experiment 2 focused on determining the effects of GnRH34 along with or in the absence of EC on day 8 on pregnancy per AI (P/AI) in postpartum beef cows. Cows (n ¼ 981) were treated similarly to those in Experiment 1, but an additional group, the EC-GnRH48 group, was included, in which cows received EC on day 8 whereas those that did not show estrus received GnRH at TAI. Thus, in this experiment, groups consisted of GnRH34 (n ¼ 322), EC-GnRH34 (n ¼ 335),... Mostrar Tudo |
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Palavras-Chave: |
Amazônia Ocidental; Embrapa Rondôna; Western Amazon. |
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Thesagro: |
Bos Indicus; Campo Experimental; Estradiol; Fertilidade Animal; Gado Nelore; Hormônio; Ovulação; Prenhez; Reprodução Animal; Vaca de Corte. |
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Thesaurus NAL: |
Animal fertility; Animal reproduction; Beef cows; Demonstration farms; Hormones; Nellore; Ovulation; Pregnancy. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154705/1/cpafro-18957.pdf
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Marc: |
LEADER 03947naa a2200505 a 4500
001 2154705
005 2023-07-18
008 2023 bl uuuu u00u1 u #d
022 $a0093-691X
024 7 $ahttps://doi.org/10.1016/j.theriogenology.2023.06.026$2DOI
100 1 $aSILVA, S. A.
245 $aGnRH34 with or without estradiol cypionate in timed AI in Bos indicus beef cows.$h[electronic resource]
260 $c2023
520 $aTwo experiments were performed to evaluate the effects of GnRH treatment on the fertility of suckled Nelore beef cows treated with an estradiol/progesterone (E2/P4)-based protocol for timed artificial insemination (TAI). Experiment 1 focused on determining the effects of estradiol cypionate (EC) on ovulation in TAI cows treated with GnRH 34 h after removal of the intravaginal P4 device (IPD). Suckled cows (n ¼ 26) were treated with 2 mg estradiol benzoate (EB) and IPD containing 1 g P4. After 8 days, IPDs were removed, and all cows were treated with 150 mg of d-cloprostenol (prostaglandin F2 alpha analog) and 300 IU of equine chorionic gonadotropin (eCG), then separated into two treatment groups consisting of cows who received 1) saline 0.9% i.m. (GnRH34 group) or 2) 0.6 mg i.m. of EC (EC-GnRH34 group). On day 9 (05:00 p.m.), all cows were given GnRH (10.5 mg of buserelin acetate) i.m. No differences were observed between the groups (P > 0.05) in the time of ovulation after IPD removal or in the proportion of cows ovulating. Experiment 2 focused on determining the effects of GnRH34 along with or in the absence of EC on day 8 on pregnancy per AI (P/AI) in postpartum beef cows. Cows (n ¼ 981) were treated similarly to those in Experiment 1, but an additional group, the EC-GnRH48 group, was included, in which cows received EC on day 8 whereas those that did not show estrus received GnRH at TAI. Thus, in this experiment, groups consisted of GnRH34 (n ¼ 322), EC-GnRH34 (n ¼ 335), and EC-GnRH48 (n ¼ 324). A higher rate of estrus expression was observed in cows treated with EC following IPD removal (EC-GnRH34: 69%, EC-GnRH48: 64.8%) than in cows in the GnRH34 group (45.6%). No difference in P/AI was observed between the treatment groups (P ¼ 0.45), but P/AI in cows in the EC-GnRH34 group (64.2%) tended to be greater (P ¼ 0.1) than in cows in the GnRH34 group (58%). In summary, although ovulation synchrony did not differ among the groups, P/AI in cows treated with EC and GnRH 34 h after IPD removal tended to be greater than in cows treated solely with GnRH; this was most likely due to a shorter proestrus/estrus period, considering the lower proportion of cows that displayed estrus in the GnRH34 group. Finally, given that P/AI did not differ between the EC-GnRH34 and EC-GnRH48 groups, our results suggest that, for cows not displaying estrus, administration of EC at the time of IPD removal followed by treatment with GnRH 48 h afterward represents the most cost-efficient TAI strategy for South American Zebu-based beef operations.
650 $aAnimal fertility
650 $aAnimal reproduction
650 $aBeef cows
650 $aDemonstration farms
650 $aHormones
650 $aNellore
650 $aOvulation
650 $aPregnancy
650 $aBos Indicus
650 $aCampo Experimental
650 $aEstradiol
650 $aFertilidade Animal
650 $aGado Nelore
650 $aHormônio
650 $aOvulação
650 $aPrenhez
650 $aReprodução Animal
650 $aVaca de Corte
653 $aAmazônia Ocidental
653 $aEmbrapa Rondôna
653 $aWestern Amazon
700 1 $aMONDADORI, R. G.
700 1 $aNOLETO, G. S.
700 1 $aBARBOSA, I. P.
700 1 $aGONÇALVES, R. L.
700 1 $aGASPERIN, B. G.
700 1 $aROVANI, M. T.
700 1 $aPAZ, E. F.
700 1 $aGOMES, L. S.
700 1 $aPFEIFER, L. F. M.
773 $tTheriogenology$gv. 209, p. 134-140, 2023.
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Embrapa Rondônia (CPAF-RO) |
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