Category: Agricultural Sciences

Research tests concentration of toxic metals in commercial yerba mate in the southern Brazilian states

The Yerba mate commercialized in the Brazilian states of Rio Grande do Sul, Paraná and Santa Catarina has a high concentration of cadmium metal, exceeding the limit established by the National Agency of Sanitary Surveillance (ANVISA). Even so, when used in hot infusions, yerba mate exhibits low concentrations of toxic metals such as arsenic, cadmium and lead. Read More →

Research investigates the presence of antibiotic residues in samples of milk consumed in the Southwest region of Paraná

Residues of antibiotics used to cure mastitis were found in milk samples from various sources, consumed and marketed in the Capanema microregion in the Southwest region of Paraná state, Brazil. These were the notes of a research published in the Journal Ciência Rural. Read More →

Research establishes genetic transformation protocol of maize variety BR 451

How does the process of genetic transformation of the Brazilian BR 451 maize variety occur through genetic engineering? This question mobilized researchers from the University of Passo Fundo (UPF), in Passo Fundo, Rio Grande do Sul, Brazil, to undertake a research on the introduction of asexual genes in this species. Read More →

Literature review covers supplementation of progestogens in pigs gestation

Although it has already been described for decades, the use of progestogens in manipulating swine gestation needs to be evaluated under current conditions of swine production. There are still few available scientific data on this technique and its commercial viability. Researchers from the Federal Universities of Pelotas, Santa Maria, and the state of Rio Grande do Sul have reached these conclusions from a literature review of studies on the manipulation of the childbirth of the female swine. Read More →

What are the factors that explain the voluntary adoption of beef cattle traceability at farm level?

The traceability of beef origin is a requirement for some import markets. Research results show that capital-intensive livestock production system, high scale production, access to specialized information and high level of social capital increase the probability of voluntary adoption of beef cattle traceability at farm level. Read More →

Study identifies the profile of farms poultry with Megninia spp.

The age range of chicken is a risk factor for the presence of Megninia spp. on commercial poultry farms. In addition, the use of mineral oil and acaricide in the diet for ectoparasite control also seems to be associated with the presence of the parasite. These results are part of a research interested in identifying the profile of farms that have the mite in their sheds. Read More →

Research points to the feasibility of microRNAs as diagnostic biomarkers of heart disease in dogs and cats

Researchers at the Federal University of Paraná, have found through a literature review that microRNAs are effective as diagnostic biomarkers and may be useful in the prognostic evaluation of different heart diseases in dogs and cats. In addition, the alteration in the expression of microRNAs may aid in the understanding of the pathophysiology of diseases not yet fully clarified and may also be a promise in the therapeutic field of veterinary cardiology. Read More →

Research tests frequency of elimination of leptospires in urine in cows and sheep

Researchers at the Federal Fluminense University (UFF), in Niterói, Rio de Janeiro, and the Brazilian Agricultural Research Corporation (EMBRAPA), Cattle of Milk, in Valença, Rio de Janeiro, Brazil, have demonstrated through experimentation that leptospiral shedding is intermittent in sheep, regardless of the strain of leptospira inoculated. In cattle, intermittent elimination appeared in less quantity, in only 43.3% of the total animals tested. Read More →

Study shows essential oils as a promising alternative in the control of dry bubble disease

Researchers at the Federal University of Lavras (UFLA), in Lavras, Minas Gerais, Brazil, have demonstrated that the oil extracts of cinnamon, clove and thyme are potential and efficient alternatives in the control of dry bubble disease in mushrooms of the species Agaricus bisporus. Read More →

Fatty acid profile of lamb meat can be changed according to their feeding regime

Researchers at the Universidad Autónoma del Estado de México in Toluca, Mexico, have shown that fatty acid content is higher in lambs fed with pasture compared to animals whose nutrition is supplemented with fishmeal or soybean meal. The study was published in the journal Ciência Rural, vol. 47, no. 4, of April, 2017. Read More →