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Registros recuperados: 86 | |
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Garber, Lindsey. |
The NAHMS Equine '98 Study was designed to provide both participants and the industry with information on the nation's equine population for education and research. The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically valid sample such that inferences can be made for all places with equids and for all equids in the participating states. Included in the study were 28 states that accounted for 78.2 percent of the U.S. horses and ponies and 78.0 percent of farms with horses and ponies. NASS interviewers collected data from 2,904 participants via questionnaire from March 16 through April 10, 1998 for Part I. Inventory data from the 133 participating race tracks were included in this report.... |
Tipo: Report |
Palavras-chave: NAHMS; Equine; Equids; Demographics; Population; Hoof care; Health; EIA; Births; Deaths; Illnesses; Neonatal; Livestock Production/Industries. |
Ano: 1998 |
URL: http://purl.umn.edu/32746 |
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Garber, Lindsey. |
The NAHMS Equine '98 Study was designed to provide both participants and the industry with information on the nation's equine population for education and research. The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically valid sample such that inferences can be made for all places with equids and for all equids in the participating states. Included in the study were 28 states that accounted for 78.2 percent of the U.S. horses and ponies and 78.0 percent of farms with horses and ponies. NASS interviewers collected data from 2,904 participants via questionnaire from March 16 through April 10, 1998 for Part II. Contact for this paper: Lindsey Garber |
Tipo: Report |
Palavras-chave: NAHMS; Equine; Equids; Population; Biosecurity; Animal movement; Nutrition; Pasture; Bedding; Manure; Livestock Production/Industries. |
Ano: 1998 |
URL: http://purl.umn.edu/32769 |
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Leistritz, F. Larry. |
This paper summarizes the general condition of the North Dakota economy and the outlook for the next few years, addressing recent and projected changes in employment, personal income, and population. Forces affecting the growth and decline of various economic sectors are discussed, and specific examples of new or expanding firms in various economic sectors are presented. Differences in economic performance among regions of the state and between urban and rural areas are examined, and major factors affecting the state's economy over the next two to five years are explored. |
Tipo: Working or Discussion Paper |
Palavras-chave: Economic outlook; North Dakota; Employment; Income; Population; Labor and Human Capital. |
Ano: 1999 |
URL: http://purl.umn.edu/23078 |
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Coon, Randal C.; Leistritz, F. Larry. |
This report is a compilation of North Dakota data. It is a general reference about socioeconomic conditions and trends in selected economic, demographic, public service, and fiscal variables. Data describing the state's economic base, population, income, employment, retail sales, human and financial resources, local government finance, health and safety, and housing are presented. Data are presented and compared at the county level, the state planning region level, and by metropolitan status. In addition, population, trade area population, taxable sales and purchases, and pull factors are presented at the municipal level. Graphic displays follow the tabular presentations of the data at the county and state planning region level. All of the data... |
Tipo: Working or Discussion Paper |
Palavras-chave: North Dakota; Socioeconomic trends; Economic base; Employment; Population; Migration; Public service availability; Community resources; Fiscal conditions; Financial Economics; Labor and Human Capital. |
Ano: 2003 |
URL: http://purl.umn.edu/23075 |
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Coon, Randal C.; Leistritz, F. Larry. |
As North Dakota has shifted from its traditional dependence on natural resource-based activities to a more diversified economy, changes in employment, population, income, and retail sales have occurred. This report summarizes changes in these and other economic indicators at the county and community level from 1980 to 2004. Employment increased 12 percent from 1990 to 2004, with 19 of the state's 53 counties registering job growth. The largest percentage (and absolute) gains were in Cass (Fargo) and Burleigh (Bismarck) counties. Population statewide decreased by less than 1 percent from 1990 to 2004, as substantial growth in the Fargo and Bismarck-Mandan metropolitan areas was offset by population decreases in most of the state's rural counties. Per... |
Tipo: Working or Discussion Paper |
Palavras-chave: Employment; Population; Per capita income; Retail sales; Pull factors; Community/Rural/Urban Development. |
Ano: 2006 |
URL: http://purl.umn.edu/23094 |
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von Braun, Joachim; de Haen, Hartwig; Blanken, Juergen. |
Rapid population growth in agroecologies that are already under high population pressure poses a major challenge for development policy. It becomes an even greater challenge in complex agroecologies where little new technology for rapid agricultural expansion is available. The mountain zones of the Zaire-Nile Divide in Central Africa present an example of such a challenging environment where agriculture has encroached onto marginal zones, that is, water catchment areas and the last tropical forests of the area. This study by von Braun, de Haen, and Blanken highlights the potentials of agricultural development for the employment, income, and consumption of the poor, but also stresses that nonagricultural rural growth and employment expansion are key to... |
Tipo: Report |
Palavras-chave: Agriculture and State; Rwanda; Produce trade; Government policy; Exports; Food supply; Nutrition policy; Population; Food Consumption/Nutrition/Food Safety; International Development. |
Ano: 1991 |
URL: http://purl.umn.edu/42154 |
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Vetrivel,SC; Chandrakumarmangalam,S. |
Poultry farming in India, in spite of several constraints, has progressed considerably during the last decade. The present study has been undertaken to examine various aspects related to the growth and development of poultry production in the country. Poultry production in India was confined to backyards till recently. Local breed of birds were reared for the supply of eggs and meat. The increasing demand for poultry products necessitates augmenting the supply by importing improved breeds of poultry. In 1961, the proportion of hybrid populations in the total population of poultry was about 2 percent. Within a couple of decades, these birds have dominated the market sidelining the indigenous birds. The technological advances have revolutionized the role and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eggs; Supply; Production; Technology; Growth; Population. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000400001 |
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Siqueira,Débora M.; Nascimento,Loana P.; Montingelli,Giovanna G.; Santos-Costa,Maria Cristina dos. |
We obtained data on time of sexual maturity, dimorphism, fecundity and on the reproductive cycle of Mastigodryas boddaerti (Sentzen, 1796) through the examination of 321 preserved specimens, of which 221 were collected in the Brazilian Amazon region and 100 in the Cerrado savannas of Central Brazil. The degree of sexual size dimorphism (snout-vent length, SVL) was significantly greater in the specimens from the Cerrado in comparison with those from the Amazon. Females had a significantly larger number of ventral scales, on average, whereas males had more sub-caudal scales. However, there was no intersexual difference in tail length or head width, although the heads of the males were significantly longer, which may reflect dietary differences. Breeding... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonia; Ecology; Cerrado; Morphology; Population. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000500002 |
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ARANA,MARGARITA; RAMÍREZ,OSWALDO; SANTA MARÍA,SERGIO; KUNIMOTO,CESAR; VELARDE,RODRIGO; DE LA CRUZ,CECILIA; RUÍZ,MARíA LUISA. |
Population density and reproduction were studied in two leaf-eared mice (Phyllotis spp.) in the Peruvian locality known as Lomas de Lachay. Density varied between 0-3 individuals ha-1 in P. andium, and between 0-12 individuals ha-1 in P. amicus. An annual cycle of population abundance was observed in both species. Phyllotis amicus showed no seasonal reproductive activity, but P. andium had seasonal reproduction with pregnant females principally observed between July and September. Differences in juvenile weight were related to litter size. It is likely that two young was the optimal litter size in the harsh and seasonal xeric environment of Lomas de Lachay. Our results suggest that P. amicus maintains low, highly dispersed populations in a harsh... |
Tipo: Journal article |
Palavras-chave: Ecology; Phyllotis; Rodents; Population; Desert. |
Ano: 2002 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2002000400010 |
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Faria,Italo Kaye Pinho de; Vieira,José Luís Vilela; Tenelli,Sarah; Almeida,Rodrigo Estevam Munhoz de; Campos,Leonardo José Motta; Costa,Rodrigo Veras da; Zavaschi,Eduardo; Almeida,Risely Ferraz de; Carneiro,Leandro de Mello e Silva; Otto,Rafael. |
ABSTRACT: Integrating plant density and nitrogen (N) management is a strategy for improving corn yields, especially for off-season corn production in the tropics. This study tested the hypothesis that increasing plant densities and N rates promotes yield gains for off-season corn production in high-yielding environments. The aim of the study was to investigate the yield performances of two hybrid versions (DKB PRO and DKB PRO3) submitted to three plant densities (55,000; 65,000 and 75,000 plants ha−1) and four N rates (control, 60, 120 and 180 kg ha−1 N). Field trials were undertaken at Uberlândia-MG (site1 and 2) and Pedro Afonso-TO (site 3), Brazil from which data on corn yield parameters were collected and analyzed. Multivariate analysis separated the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Hybrid; Population; Corn yield; Second-crop. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001400344 |
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Barros,Luciane Bertoletti; Moreira,Rosângela Maria Pinto; Ferreira,Josué Maldonado. |
Knowledge of the association between characters is very important in the genetic breeding programs, but there is limited information about correlations between traits in maize landraces in the current literature. The objectives of this study were to estimate phenotypic, additive genetic and environment correlations among traits in maize landraces, which were cultivated in family farm systems, in order to guide the participatory breeding on maize landraces. Between 294 and 400 half-sib progenies from the six populations were evaluated, subdivided in triple 7X7 and 10X10 lattice design, respectively, with single row plots of 4 m long and spaced 1.00 × 0.20 m. Estimates of correlation coefficients are reported for nine traits: grain yield (GY), relation grain... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L.; Population; Recurrent selection; Participatory breeding. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000600010 |
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Dinardo-Miranda,Leila Luci; Fracasso,Juliano Vilela. |
Nematodes are important parasites of sugarcane in Brazil. Because of this, several studies have been conducted in recent years to evaluate the effectiveness of control methods. However, no studies have been reported on the spatial distribution of nematodes in sugarcane fields, and such studies are indispensable for the development of sampling plans, aimed at their application in integrated management programs. The spatial distribution of Meloidogyne javanica, Pratylenchus zeae, and mixed populations of P. zeae and P. brachyurus was studied in six commercial fields, with areas ranging from 0.26 to 0.50 ha; samples were obtained during the rainy season. The samples, represented by about 50 g roots, were collected within a rectangular grid measuring 7 × 12 m,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum; Meloidogyne; Pratylenchus; Spatial variability; Population. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000200007 |
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Registros recuperados: 86 | |
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