Results: 1740

Vitamin E and organic selenium for broilers from 22 to 42 days old: performance and carcass traits

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT This study was conducted to evaluate the effect of vitamin E and selenium on performance, viability, productive efficiency, and yields of carcass, major cuts, and organs of broilers from 22 to 42 days submitted to cyclic-heat stress. The experimental design was randomized blocks, in a 2 × 3 fac...

Beef tallow and emulsifier in growing-finishing pig diets

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT Two trials were aimed to evaluate beef tallow in diets with and without emulsifier on performance of pigs at growing-finishing phases. In the first trial, 15 barrows (22.03±0.62 kg) were distributed among three treatments: reference diet; test diet 1 (5% beef tallow) and test diet 2 (10% beef t...

Water temperature, body mass and fasting heat production of pacu (Piaractus mesopotamicus)

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT Knowledge on fasting heat production (HEf) of fish is key to develop bioenergetics models thus improving feeding management of farmed species. The core of knowledge on HEf of farmed, neotropical fish is scarce. This study assessed the effect of body mass and water temperature on standard metabol...

Diameter distribution in a Brazilian tropical dry forest domain: predictions for the stand and species

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT Currently, there is a lack of studies on the correct utilization of continuous distributions for dry tropical forests. Therefore, this work aims to investigate the diameter structure of a brazilian tropical dry forest and to select suitable continuous distributions by means of statistic tools fo...

Screening of melon genotypes for resistance to vegetable leafminer and your phenotypic correlations with colorimetry

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT Melon is one of the most important vegetable crops in the world. With short cycle in a system of phased planting, phytosanitary control is compromised, and a great volume of agricultural chemicals is used to control vegetable leafminer. Genetic control is an ideal alternative to avoid the damage...

Sugars levels of four sugarcane genotypes in different stem portions during the maturation phase

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT Maturation is a characteristic of sugarcane plant (Saccharum spp.) and even when grown under the same soil and climate conditions the varieties differ on the maturation curve. Thus, studies that allow establishing maturation curves of different sugarcane genotypes in the local soil and climate m...

Characterization and influence of subtropical persimmon cultivars on juice and jelly characteristics

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT To increase the availability to consumers and add more value to persimmon (Diospyros kaki L.), which is a very perishable and seasonal fruit and in order to identify which cultivars grown in subtropical regions are more suitable for processing in the form of juice and jelly, as well as understan...

Global patterns of aboveground carbon stock and sequestration in mangroves

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT In order to contribute to understand the factors that control the provisioning of the ecosystem service of carbon storage by mangroves, data on carbon stock and sequestration in the aboveground biomass (AGB) from 73 articles were averaged and tested for the dependence on latitude, climatic param...

Hearing thresholds in patients with drug-resistant tuberculosis: baseline audiogram configurations and associations

J. bras. pneumol; 43 (3), 2017
ABSTRACT Objective: To use baseline audiogram parameters in order to ascertain whether drug-resistant tuberculosis (DR-TB) has effects on hearing, as well as to describe the configurations of the audiograms and to determine whether there are parameters that can be associated with those configurations. ...

Sleep-disordered breathing in patients with COPD and mild hypoxemia: prevalence and predictive variables

J. bras. pneumol; 43 (3), 2017
ABSTRACT Objective: To infer the prevalence and variables predictive of isolated nocturnal hypoxemia and obstructive sleep apnea (OSA) in patients with COPD and mild hypoxemia. Methods: This was a cross-sectional study involving clinically stable COPD outpatients with mild hypoxemia (oxygen saturation ...