Consulta: subjectFacets:"Crossing"
Registros recuperados: 13
Data/hora: 11/06/2024 06:29:38

Adaptive Management Planning Projects as Conflict Resolution Processes
Provedor de dados: Ecology and Society
Autores: Walkerden, Greg; Macquarie University; gmw@bwassociates.com.au.
Adaptive management planning projects use multiparty, multidisciplinary workshops and simulation modeling to facilitate dialogue, negotiation, and planning. However, they have been criticized as a poor medium for conflict resolution. Alternative processes from the conflict resolution tradition, e.g., principled negotiation and sequenced negotiation, address uncertainty and biophysical constraints much less skillfully than does adaptive management. When we evaluate adaptive management planning using conflict resolution practice as a benchmark, we can design better planning procedures. Adaptive management planning procedures emerge that explore system structure, dynamics, and uncertainty, and that also provide a strong negotiation process, grounded in...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Adaptive management; Conflict resolution; Crossing; Ecosystem management; Environmental management; Negotiation; Planning; Practice; Principled negotiation; Professional practice; Resource management; Strategic environmental assessment.
Ano: 2006

Seleção e cruzamentos de ovinos e caprinos de corte: importância da participação dos frigoríficos.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: MORAIS, O. R. de.
ODS.
Tipo: Folhetos
Palavras-chave: Ovino de corte; Caprino de corte; Brasil; ODS; Agenda 2030; Produção Animal; Cruzamento; Seleção; Sheep; Goats; Crossing.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1148916

Objetivos e critérios de seleção em bovinos de corte em fase de cria.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: CARNEIRO JUNIOR, J. M.; ASSIS, G. M. L. de.
A pecuária de corte é caracterizada pelas fases de cria, recria e engorda, que podem ser exploradas como sistemas de produção isolados ou combinados. A cria, período que compreende da cobertura até a desmama, é considerada a fase mais importante da vida dos bovinos, pois o bezerro precisa alcançar, no intervalo de 7 a 8 meses, de 25% a 50% do peso final de abate. Nessa fase, preconiza-se não só a qualidade dos bezerros, mas também a condição corporal e saúde das vacas, dos touros e das novilhas que irão substituir as vacas de descarte. O objetivo de quem investe na cria de bovinos de corte é obter de cada vaca do rebanho um bezerro pesado e saudável por ano. Para obtenção de bezerros de qualidade é necessário o investimento em três pilares essenciais: o...
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Período de cria; Manejo sanitário; Ganado de carne; Cruce; Cruce de animales; Desempeño reproductivo; Época de apareamiento; Nutrición animal; Rentabilidad; Selección artificial.; Gado de corte; Eficiência reprodutiva; Nutrição animal; Rentabilidade; Melhoramento genético animal; Seleção; Cruzamento animal; Beef cattle; Reproductive performance; Animal nutrition; Profitability; Animal breeding; Artificial selection; Crossing; Breeding season.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1068959

Effect of sire breed on performance and feed efficiency in feedlot of crossbred cattle.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: FAVERO, R.; ALTRAK, G.; MENEZES, G. R. de O.; GOMES, R. da C.; TORRES JUNIOR, R. A. de A.; PEREIRA, G. M.; KAZAMA, R.; MIZUBUTI, I. Y.
The aim of this study was to evaluate the effect of sire breed on performance and feed efficiency in feedlot of crossbred cattle. Steers (n=74) and heifers (n=71) produced along two years by breeding Nellore, ½ Nellore x ½ Angus and ½ Nellore x ½ Caracu cows with Braford (BF), Charbray (CC) and Caracu (CR) sires were raised grazing tropical grasses until 20 months (mo) of age and then finished in feedlot for 4 mo. Animals were kept in individual pens allowing measuring of daily dry matter intake (DMI) during finishing phase in feedlot. Weight records were taken in the beginning (BBW) and in the end (EBW) of the feedlot as well as every 28 days to calculate average daily gain (ADG). Feed conversion rate (FCR) was used as a measure of feed efficiency. Data...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Genetics; Composite breeds; Crossing; Feed intake.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1056169

Melhoramento genético em propriedades leiteiras do Acre.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: CARNEIRO JUNIOR, J. M.
bitstream/item/159338/1/26312.pdf;  bitstream/item/159339/1/263122.pdf;  bitstream/item/159340/1/263123.pdf;  bitstream/item/159341/1/263124.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Nutrición animal; Cruce de animales; Cultivo a pequeña escala; Elaboración de leche; Ganado de leche; Inseminación artificial; Rentabilidad; Selección artificial; Tecnología lechera.; Gado leiteiro; Produção leiteira; Pequeno produtor; Rentabilidade; Nutrição animal; Tecnologia apropriada; Melhoramento genético animal; Reprodução animal; Seleção; Cruzamento animal; Vigor híbrido; Inseminação artificial; Dairy cattle; Milk production; Small-scale farming; Profitability; Animal nutrition; Dairy technology; Animal breeding; Artificial selection; Crossing; Heterosis; Artificial insemination.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1068961

Estratégia para a seleção de linhagens de guandu granífero e forrageiro no Semiárido brasileiro.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SANTOS, C. A. F.
O objetivo deste estudo foi desenvolver e selecionar linhagens de guandu granífero (GG) e forrageiro (GF) para recomendação de novas cultivares. Cruzamentos manuais, em esquema dialélico, foram realizados para GG e GF, envolvendo oito e cinco parentais, respectivamente. Vinte e cinco cruzamentos GG e 11 cruzamentos GF foram avançados pelo método populacional em bulk, com proteção das flores com saco de tecido não tecido (TNT). Nas gerações F2 e F3 , para o GG, não foram realizadas seleções, enquanto nas gerações F4 , F5 e F6 a intensidade de seleção foi de, aproximadamente, 30%. Para o GF foram aplicadas seleções de maiores intensidades desde a geração F3 . As populações dos diferentes cruzamentos nas gerações F2 e F3 foram de, aproximadamente, 250...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Guandu granífero; TNT; Linhagens de guandu granífero; Leguminosa; Leguminosa com Grão; Guandu; Cajanus Cajan; Cruzamento; Cruzamento Vegetal; Seleção Genética; Crossing; Forage; Forage legumes.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128079

Voluntary intake of dry matter and performance of Nellore cows and their Nellore and crossbred Simental × Nellore calves
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Vargas Junior,Fernando Miranda de; Wechsler,Francisco Stefano; Rossi,Patrícia; Oliveira,Marcus Vinicius Morais de; Schmidt,Patrick.
This study aimed to investigate the influence of calf genetic group on the performance of Nellore lactating cows. The variables studied included milk ingestion, pasture intake, calf weight gain and cow body weight. A total of 13 Nellore calves and 8 crossbred Simental × Nellore calves were used, all born from Nellore mothers. During the experimental period of 210 days, calves were weighted at birth and at 30-day intervals, whereas cows were weighed every 14 days. Milk intake was estimated using the weigh-suckle-weigh method. Pasture intake was determined 6, 12, and 24 weeks after birth by using chromic oxide as an external marker and indigestible acid detergent fiber as an internal marker. Average weight of crossbred calves was 10.1 kg and their milk...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crossing; Grazing; Milk; Weight gain.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100040

Performance and carcass characteristics of Santa Inês pure lambs and crosses with Dorper e Texel at different management systems
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Garcia,Iraides Ferreira Furusho; Costa,Tharcilla Isabella Rodrigues; Almeida,Amélia Katiane de; Pereira,Idalmo Garcia; Alvarenga,Flávio Augusto Pereira; Lima,Natália Ludmila Lins.
It was evaluated the performance and the carcass characteristics of 36 non-castrated male lambs, Santa Inês purebreed and crossbreeds from Dorper × Santa Inês and Texel × Santa Inês, managed in three different systems (intensive, semi-intensive and extensive), slaughtered at 38.41 ± 1.24 kg. It was observed the highest weight gain for lambs reared in intensive system, which also showed the greatest carcass yield. The management systems did not influence carcass measures of animals in intensive system much because of the greater weight of the carcass. The intensive system provided the best performance, regardless the genetic group. The use of Texel and Dorper breeds in crossings with Santa Inês increases carcass yield.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crossing; Cuts; Meat; Sheep; Weight gain.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000600021

Reproductive efficiency of Nellore cows nursing Nellore or crossbred Simmental × Nellore calves
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Vargas Junior,Fernando Miranda de; Wechsler,Francisco Stefano; Oliveira,Marcus Vinicius Morais de; Seno,Leonardo de Oliveira; Fernandes,Alexandre Rodrigo Mendes; Camilo,Fernando Rossi.
The objective of this study was to analyze the influence of genetic group (GG) of the calf during gestation, mobilization of body reserves and period of postpartum anestrus in Nellore cows. Thirty-seven primiparous and multiparous cows were used: 24 gave birth to Nellore (NEL), and 13 gave birth to ½ Simmental × ½ Nellore (SIM) calves. According to the date of calving, cows were divided into three blocks, with intervals of 20 days between blocks. The body condition (BC) of the cows was estimated subjectively on a scale from 0 to 5 points, with intermediate grading of 0.5 points. We measured the thickness of subcutaneous fat (SF) between the 12th and 13th ribs and rump by ultrasound. Blood samples from each cow were collected weekly from the third week...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anestrus; Body condition; Crossing; Subcutaneous fat.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000700003

Carcass traits and meat quality of Brangus × Zebu steers in grazing systems receiving supplementation
Provedor de dados: Scientia Agricola
Autores: Valle,Felipe Roberto Amaral Ferreira do; Fontes,Carlos Augusto de Alencar; Fernandes,Alberto Magno; Oliveira,Tadeu Silva de; Processi,Elizabeth Fonseca.
ABSTRACT: The use of supplements eliminates deficiencies imposed by pasture, increases weight gain in animals and maximizes profits from the activity. The objective of this study was to evaluate the performance, carcass traits and meat quality of steers in grazing systems that received or did not receive a protein energy supplement at the level of 0.6 % body weight. The experiment lasted 160 days and included 36 Brangus × Zebu animals. Eighteen animals received supplementation and another eighteen did not receive supplementation. Carcasses were evaluated for yield, loin eye area, fat thickness and length. The assessment of meat quality evaluated the shear force, myofibril fragmentation index, color, exudative losses and collagen. The carcass traits of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crossing; Muscle deposition; Efficiency of use.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000300402

Sorghum breeding 1977
Provedor de dados: Thai Agricultural Research Repository
Autores: Krisda Samphantharak; Dumri Suriyapu; Tisti Puntharo.
7 tables
Palavras-chave: Sorghum; Plant breeding; Random mating; Hybrids; Yield trials; Crossing; Selection; Mould tolerance; Variety trials; Yields; ข้าวฟ่าง; การปรับปรุงพันธุ์; ประชากรจากการผสมพันธ์แบบสุ่ม; ข้าวฟ่างลูกผสม; การทดสอบผลผลิต; โรคราบนช่อข้าวฟ่าง.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3920

Partum and postpartum characteristics on the postpartum rebreeding in beef cattle
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: JONER,GUILHERME; ALVES FILHO,DARI C.; BRONDANI,IVAN L.; BORCHATE,DANIELE; KLEIN,JOHN L.; DOMINGUES,CAMILLE C.; RODRIGUES,LEONEL S.; MACHADO,DIEGO S.
ABSTRACT The objective was to evaluate the influence of calving and postpartum characteristics, measured in different genetic predominance, on the postpartum rebreeding. Were evaluated 437 partum from cows that received feeding management consisting of a forage base of the native field and the mating season consisted of 90 days. The measurements were used from the data base (age of cow, genetic predominance, body weight, body condition score and date of calving) of the cows in the partum and postpartum period. The variables were submitted to analysis of multiple variances, multiple regression, correlation and cluster. Already the groups formed by cluster analysis were submitted to analysis of variance and F test and the means, compared by Student’s t-test,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calving period; Calving season; Crossing; Multiparous; Reproductive efficiency.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502479

Brief history of Eucalyptus breeding in Brazil under perspective of biometric advances
Provedor de dados: Ciência Rural
Autores: Castro,Carla Aparecida de Oliveira; Resende,Rafael Tassinari; Bhering,Leonardo Lopes; Cruz,Cosme Damião.
ABSTRACT: Forest breeding is a science that has been developing in Brazil since 1941 being the Eucalyptus a highlighted genus in this scenario. In a global scene, Brazil is displayed prominently in productivity of  Eucalyptus planting, due to favorable environmental conditions to cultivation development, and the incentive in research for improvement of traits of interest t observed in it species and hybrids. This research included a historical review of Eucalyptus breeding over the years under genetic biometric perspective in Brazil, from reports describing the pioneer planting up to the current genome wide selection (GWS) that came as a complement of forest breeding success. This review showed some of the tracks performed by researchers aiming to improve...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetics; Crossing; History; Current scenario; Biometry; Genomic.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901585