SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Ho, Christie K.M.; Armstrong, Dan P.; Doyle, Peter T.; Malcolm, Bill.

Farming systems throughout the Murray-Darling Basin are under increasing scrutiny from the perspective of ecological sustainability of farm and catchment systems. In northern Victoria, the dairy industry is a major user of water, and contributes to the environmental issues. Changes in irrigation water price, availability and policy will invariably impact on the viability of dairy farming in this region, but the diversity of dairy farm systems suggests that the impact will vary between farms. Two case study farms, a 'water reliant' farm and a 'fodder reliant' farm, were used to examine economic and social impacts of changes in water price, availability and policy.

Dairy Market Participation with Endogenous Livestock Ownership: Evidence from Cote d'Ivoire

Palavras-chave: Dairy; Irrigation; Water; Agribusiness; Resource /Energy Economics and Policy.

Ano: 2004

URL: http://purl.umn.edu/58707

Balagtas, Joseph Valdes; Coulibaly, Jeanne Y.; Mohammad, Jabbar; Negassa, Asfaw.

This study evaluates determinants of dairy market participation by agricultural households in Cote dIvoire by using the Heckman selection model to correct for endogenous cattle ownership. A key result is that ignoring the population of non-owners biases estimates of market participation parameters. These findings are important in light of the widespread application of livestock market participation analyses that assume cattle ownership is exogeneous.

The Effectiveness of Dairy Risk Management at Managing Income, Revenue, and Margin Risk

Palavras-chave: Cote dIvoire; Dairy; Endogenous adoption; Heckman selection model; Market participation; Livestock Production/Industries.

Ano: 2007

URL: http://purl.umn.edu/9728

Herbst, Brian K.; Anderson, David P.; Outlaw, Joe L.; Richardson, James W..

With the 2009 milk prices still fresh on everyone’s mind, there has been increased interest in ways to limit milk price volatility. Using SERF, this paper determined some dairies are willing to pay for limited milk price volatility and found a value they are willing to pay using risk premiums.

SATISFACTION EVALUATION OF MILK HANDLERS BY SOUTHERN U.S. DAIRY FARMERS

Palavras-chave: Dairy; Stochastic Simulation; Price volatility; Agricultural and Food Policy; Farm Management.

Ano: 2011

URL: http://purl.umn.edu/98833

Sayers, Dave M.; Kilmer, Richard L.; Lee, Jonq-Ying; Flambert, Anouk M..

An ordered probit model is used to investigate the factors that determine post-choice satisfaction of southeastern U.S. dairy farmers with their milk handlers. The impact on farmer satisfaction of milk handler attributes, farm/farmer characteristics, and farm location is tested. Results support the hypothesis that mailbox price and the quality of service provided by milk handlers have a positive effect on satisfaction levels. Bargaining-operating cooperatives are negatively associated with farmer satisfaction when contrasted against independently owned milk handlers and bargaining-only cooperatives. Choice and the ability to switch milk handlers are also important determinants of farmer satisfaction.

Tipo: Journal Article

Palavras-chave: Bargaining-only cooperative; Bargaining-operating cooperative; Dairy; Proprietary milk handler; Satisfaction; Livestock Production/Industries.

Ano: 1996

URL: http://purl.umn.edu/15124

Carbon Emissions, Renewable Electricity and Profits: Comparing Alternative Policies to Promote Anaerobic Digesters on Dairies

Key, Nigel D.; Sneeringer, Stacy E..

Biogas recovery systems that use methane from manure to generate electricity have not been widely adopted in U.S. mainly because the costs of constructing and maintaining these systems have exceeded the value of the benefits provided. Climate change mitigation and renewable energy policies could increase profits for the operators of such systems thereby making digester adoption more widespread. For the U.S. Dairy sector, we examine digester adoption rates, emissions reductions, net returns, electricity generation, and program costs under different policy scenarios. We find that 3% or fewer dairies would need to adopt digesters to meet the policy goals of reducing 25% of greenhouse gas emissions from dairy manure or generating one million megawatt hours...

A Partial Equilibrium Model of the Beef and Dairy Sector in Italy Under Imperfect Competition

Palavras-chave: Anaerobic digester; Methane; Dairy; Renewable electricity; Subsidy; Carbon offsets; Climate change; Environmental Economics and Policy; Livestock Production/Industries; Q5.

Ano: 2011

URL: http://purl.umn.edu/103440

Moro, Daniele; Sckokai, Paolo; Soregaroli, Claudio.

In this paper we present a partial equilibrium model for the bovine sector (beef and dairy) in Italy, which can be used for simulation and forecasting. The structure of the model follows the vertical chain of the beef and dairy sector, allowing trade of both agricultural raw materials and final products. Since the processing and retailing stage is characterised by an imperfectly competitive structure, the model accounts for market power in modelling the price transmission mechanism. This provides further insights on the vertical transmission of shocks, both at the final level (i.e. the BSE crisis) and at the farm level (i.e. agricultural policy reform).

Protein requirements for growth in male and female Saanen goats

Palavras-chave: Simulation models; Policy analysis; Imperfect competition; Beef; Dairy; Livestock Production/Industries.

Ano: 2002

URL: http://purl.umn.edu/24787

R. Bras. Zootec.

Almeida,Amélia Katiane de; Resende,Kléber Tomás de; Silva,Simone Pedro da; Soares,Diogo da Costa; Fernandes,Márcia Helena Machado da Rocha; Teixeira,Izabelle Auxiliadora Molina de Almeida.

The objective of this study was to determine the protein requirements for the growth of intact male, female, and castrated male Saanen goats weighing 30 to 45 kg of body weight (BW) and to compare estimates of the protein requirements for maintenance (NPm) by the comparative slaughter and nitrogen balance techniques. To determine the maintenance requirements, 55 goats were assigned in a split-plot design using a 3 × 3 factorial arrangement (three sexes and three dry matter intake (DMI) levels). A linear regression of retained N (as measured by the slaughter technique and estimated from the nitrogen balance) on N intake on a daily basis was used to calculate the net protein for maintenance. The net protein requirement for weight gain (NPg) was obtained...

Association of the occurrence of some diseases with reproductive performance and milk production of dairy herds in southern Brazil

Palavras-chave: Comparative slaughter; Dairy; Factorial approach; Maintenance; Nitrogen balance.

Ano: 2015

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015001100397

R. Bras. Zootec.

Scheid Filho,Virgilio Balduíno; Schiavon,Raquel Schiavon; Gastal,Gustavo Desire Antunes; Timm,Cláudio Dias; Lucia Jr.,Thomaz.

This study analyzed associations between the occurrence of mastitis, metritis and retained placenta with the reproductive performance and milk production of four Holstein dairy herds of southern Brazil. Calving-to-conception intervals (CCI) and daily milk production were compared across herds, number of artificial inseminations and clinical occurrences and occurrence of mastitis, metritis and retained placenta. The CCI of cows with three or more clinical occurrences was longer than for those with no occurrences, but shorter for cows with retained placenta than for those without it. Cows with clinical mastitis up to 60 days post-partum had shorter CCI than those with mastitis after 60 days. Cows with retained placenta also had higher frequency of metritis....

Tipo: Info:eu-repo/semantics/other

Palavras-chave: Dairy; Mastitis; Production; Retained placenta.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200033

Practicability of somatic cell count and electrical conductivity as subclinical mastitis diagnostic tests in camels (Camelus dromedarius)

Scientia Agricola

Aljumaah,Riyadh Saleh; Almutairi,Fares; Ayadi,Moez; Alshaikh,Mohammed Abdulrahman; Al-Haidary,Ahmed Abrahim; Samara,Emad Mohammed.

ABSTRACT Critical gaps exist in our understanding of the diagnostic reliability of subclinical mastitis tests in dromedary camels. Using a retrospective longitudinal cross-sectional approach, 191 lactating camels were randomly sampled from 47 camel herds to investigate at first the practicability of somatic cell count (SCC) and electrical conductivity (EC) tests as subclinical mastitis tests in camels through their validations by California mastitis test (CMT) score, and then through the subsequent employments of those objective means in assessing certain potential risk markers predisposing camels to this disease. Results indicate the reliability and validity of SCC test, in contrast to EC test, in distinguishing subclinical mastitic udders in camels, as...

Sustainable alternative for the food industry: converting whey and orange juice into a micro-filtered beverage

Palavras-chave: Dairy; Milk production; Risk marker; Human consumption; Welfare.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000400402

Scientia Agricola

Fagnani,Rafael; Puppio,Ana Amélia Nunes; Zanon,Emely Osti.

ABSTRACT: Enhancing industrial sustainability by converting whey into alternative high value-added products is a scientific trend in food science and technology. However, without other ingredients, rennet, or sour, whey has an unappetizing flavor. This sensory challenge can be overcome by blending it with citrus flavor from orange juice. This study assessed a micro-filtered beverage from whey and orange juice without enzymatic treatment. Four formulations (27:10, 8.6:10, 2.4:10 and 1:10 v/v whey:juice ratio) were processed through a 1.4 μm microfiltration system with four different transmembrane pressures (1, 2, 3, and 4.15 bar) and then stored at 5 °C for 28 days. The micro-filtered beverage was analyzed for physicochemical, sensorial and microbial...

Predicted milk production per hectare based on yield and chemical composition of native and hybrid maize silage varieties on temperate and tropical regions

Palavras-chave: Membrane; Dairy; Fruit; Fouling; Sensory evaluation.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000200136

Acta Agron. (Palmira)

Robles Jiménez,Lizbeth Esmeralda; González Ronquillo,Manuel; Rosas Davila,Melchor; Osorio Avalos,Jorge; Palacios Riocerezo,Carlos; Castelán Ortega,Octavio Alonso; Chay-Canul,Alfonso; Vargas-Bello-Pérez,Einar; Plata Reyes,Dalia A..

Abstract The objective of the present study was to characterize maize silage according to chemical composition, maize silage yield, as well as their predicted milk production. A search was made on studies related to maize silage yield, density, chemical composition (DM, CP, NDF, starch), and dry matter digestibility (DMD). In this study, 41 maize varieties from temperate regions and 101 maize varieties from tropical origin were analyzed. The net energy of lactation (NEL Mcal/kg DM), kilograms of milk per t of silage (kg of milk/t DM), and kilograms of milk per hectare of silage (kg of milk/ha) were determined. A cluster (CL) analysis was performed, and six CL of maize silage were obtained. The CL1 included digestibility for dry matter, crude protein,...

URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000200148

Palavras-chave: Production systems; Dairy; Cows; Starch; Fiber; Conserved forage.

Ano: 2021

Milking Machines on Chilean Dairy Farms and their Effects on Somatic Cell Count and Milk Yield: A Fied Study

Agricultura Técnica

Garcés A,R; López F,J; Bruckmaier,R. M.

Thirty-four dairy farms in the south central zone of Chile were evaluated in order to describe the functioning of the milking machines with respect to vacuum, pulsators, milklines and cluster characteristics and their relationship with somatic cell count (SCC) and milk yield (MY). An inadequate nominal vacuum level (NVL) was one factor that influenced negatively SCC. The increase of SCC was more accentuated in those milking machines with high-lines than mid- and low-lines. MY was also negatively influenced by an inadequate high NVL. Higher MY value was found in those farms which had < 44 kPa NVL. In all cases, effective vacuum reserve deficit (EVRD) produced SCC above international recommendations. The EVRD effect was not significant (P > 0.05) on...

Tipo: Journal article

Palavras-chave: Milking machine; Dairy; Milk yield.

Ano: 2006

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072006000100004

Design of waste stabilization ponds for dairy processing plants in Uganda

CIGR Journal

Menya, Emmanuel; Wangi, G. M.; Amanyire, F.; Ebangu, B..

Waste stabilization ponds (WSP) were designed to treat 287.5 m3 day-1 of wastewater generated from processing of 100 m3 of milk per day. The design involved use of existing models including those developed by Mara to size the anaerobic, facultative and maturation ponds. The design temperature was 250C. The anaerobic pond was designed based on volumetric organic loading rate while facultative pond was designed based on surface loading rate. On the other hand, the maturation pond was designed based on the number of coliform bacteria removed per 100 mL of wastewater. The anaerobic pond was designed to remove 70% BOD, facultative pond-75% and maturation pond-25% BOD. In addition, the maturation pond was designed to have a coliform bacteria removal...

The occurrence of aflatoxigenic Aspergillus spp. in dairy cattle feed in Southern Brazil

Palavras-chave: Dairy; Waste stabilization ponds; Anaerobic; Facultative; Maturation; Uganda.

Ano: 2013

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2388

BJM

Variane,Augusto Carlos Favaretto; Santos,Fabiane Cristina dos; Castro,Fausto Fernandes de; Barbosa-Tessmann,Ione Parra; Santos,Geraldo Tadeu dos; Pozza,Magali Soares dos Santos.

ABSTRACT The presence of mycotoxins or related fungi in animal feed is a major problem for animal and human health. Silage and concentrated feed samples were collected from 21 dairy farms in the Western part of Paraná state in Southern Brazil. Water activity and pH of all samples were measured, and each sample was analyzed to check for the presence of aflatoxigenic Aspergillus. Water activity was observed to be lower in the concentrated feed samples. The pH was lower in the silage samples, indicating fermentation processes. Two silage samples and four concentrated feed samples were contaminated with Aspergillus spp. Seven isolates of Aspergillus spp. were obtained and their potential to produce aflatoxins was evaluated. Four of the isolates, two from the...

Udder Morphological Traits and Milk Yield of Chilota and Suffolk Down Sheep Breeds

Palavras-chave: Feed; Dairy; Aspergillus.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000400919

Chilean J. Agric. Res.

Martínez,María E; Calderón,Cecilia; de la Barra,Rodrigo; de la Fuente,L. Fernando; Gonzalo,Carlos.

Morphological traits of the whole udder (circumference, width, height, and length), teats (angle, length and width), udder cistern (teat opening and cistern height), and milk yield were measured over one lactation in a total of 18 ewes (nine Chilota and nine Suffolk Down sheep) belonging to the same experimental flock (Centro Experimental INIA Butalcura, Chiloé, Chile). Analysis of variance showed significant effects for breed, sheep within breed, and stage of lactation. Chilota ewes evidenced greater udder circumference (433 mm), udder length (86 mm), teat opening (96º), and milk yield (947 mL d-1) than Suffolk Down ewes (410 mm, 77 mm, 93º, and 559 mL d-1, respectively). Udder circumference, udder width, udder length, cistern height and teat size...

Tipo: Journal article

Palavras-chave: Mammary morphology; Teats; Dairy; Sheep.

Ano: 2011

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000100011

Smallholder family farmers’ perceptions, attitudes and choices regarding husbandry practices that influence performance and welfare of lactating dairy calves

Fruscalso,Vilmar; Antillón,Gabriela Olmos; Hötzel,Maria José.

ABSTRACT: This study aimed to describe the management practices used in dairy farms in the south of Brazil, and to understand farmers’ perceptions and attitudes regarding these practices. Farms (n=135) located in all 32 of the municipalities in the northern region of Rio Grande do Sul (Alto Uruguai Gaúcho), Brazil were characterized regarding all calf management practices during a farm visit where farms were inspected and farmers interviewed. In a second visit, 25 in depth interviews were done to understand farmers’ attitudes and perceptions towards these practices and potential influence on calves’ welfare and performance. Management of lactating calves was perceived by most of the interviewees as of marginal importance for dairy activity. In general...

Chilled raw milk quality: a case study in Zona da Mata region, Minas Gerais State, Brazil

Palavras-chave: Dairy; Lactation; Suckling; Young cattle.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001100801

Lima,Luiz Paulo de; Braga,Gustavo Bastos; Perez,Ronaldo; Carvalho,Antonio Fernandes de.

ABSTRACT: This paper aimed to analyze the evolution of the quality of raw milk produced by producers in the Zona da Mata region, in the state of Minas Gerais, between 2012 and 2018. For this purpose, we used the linear mixed-effects model to analyze the monthly evolution of the results of milk composition indicators (fat, protein, and defatted dry extract - DDE), somatic cell count - SCC, and total bacterial count - TBC, from the official monthly registry of 94 milk producers, suppliers of a region’s dairy. Results indicate a continuous reduction in the milk composition indicators between 2014 and 2018. For the SCC and TBC indicators, we identified only one-off reductions. The supply of a larger volume of milk was associated with increased TBC. Seasonality...

Microbial quality of industrial and retail market grated parmesan cheese in the State of São Paulo, Brazil

Palavras-chave: Dairy; Legislation; National Milk Quality Improvement Program.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000400451

Aguilar,Carlos Eduardo Gamero; Rossi Junior,Oswaldo Durival; Vidal,Ana Maria Centola; Ribeiro,Laryssa Freitas; Rossi,Gabriel Augusto Marques.

ABSTRACT: With the objective to evaluate the hygienic and sanitary conditions of grated parmesan cheese acquired from the retail business, total 120 cheese samples were acquired: 60 of which were obtained from four different brands of cheese that were grated in factories, and the other 60 samples were obtained from another four brands of cheese that are normally acquired by retailers (supermarkets) in blocks and grated at the moment of sale. The population of heterotrophic mesophilic microorganisms ranged from 1.2×10³ to 1.1×107 colony-forming units (CFU)·g-1. All samples analyzed contained Staphylococcus spp. with populations varying from 1.2×10³ to 8.7×106CFU·g-1, from which 60.0% were classified as coagulase-positive Staphylococcus and 52.5% of the...

What is the best temperature-humidity index equation to indicate heat stress in crossbred dairy calves in a tropical environment?

Palavras-chave: Dairy; Food microbiology; Public health; Staphylococcus aureus.

Ano: 2016

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202257

Nascimento,Fernanda Gatti de Oliveira; Aguiar,Hellen Cris Pinto; Rodrigues,Gustavo Moya; Guimarães,Ednaldo Carvalho; Nascimento,Mara Regina Bueno de Mattos.

ABSTRACT: The aim of this study was to determine among nine temperature-humidity index (THI) equations, the one that best represents the effects of heat stress on crossbred dairy calves reared in a tropical environment. Twelve male and female calves, aged 20 to 60 days, and raised in a tropical pen were evaluated. Respiratory (RR) and heart rates (HR), rectal (RT), body surface (BST), dry bulb (Tdb) and wet bulb (Tbw) temperatures, partial vapor pressure (Pv), relative humidity (RH) and dew point temperature (Tpo) were quantified in the morning and afternoon. Nine THI equations were calculated. The highest correlation between physiological variables and this was used to select the best THI equation. Averages for nine THI equations, Tdb, Twb, Pv, Tdp, RR,...

Bulk water charges in the dairy industry: A case study of interstate basins in Minas Gerais, Brazil

Palavras-chave: Cattle; Comfort; Dairy; Thermal index.

Ano: 2019

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100652

Lima,Luiz Paulo de; Spletozer,Aline Gonçalves; Jacovine,Laércio Antônio Gonçalves; Carvalho,Antonio Fernandes de.

ABSTRACT: Water is an essential input for any agribusiness, used for various purposes such as hygiene procedures, heat exchangers and beverage formulation. Water charging, regulated in Brazil by the National Water Resources Policy (Federal Law 9.433/97), is an important issue for the food industry, since it may change the profile of food production costs. Thus, this article aimed to estimate the price increases in the dairy industry from the use of water charging and evaluate the potential benefit of this collection, comparing it to some planned investments in basins plans. We used a case study of a dairy that produced 1 t/d of mozzarella cheese in the state of Minas Gerais. Results indicated that water charging among the basins with current collection...