Banzatto, D.A. and Kronka, S.N. () Experimentaoagrícola. AUTHORS: Luis S. L. S. Reis, Paulo E. Pardo, Neusa M. Frazatti-Gallina, Rosana L. Paoli. Temperatura e substrato para o teste de germinação de sementes de barbatimão . que 85%, de acordo com as recomendações de Banzatto e Kronka (). A suplementação de KCl na água regulou o número de eritrócitos e a . foram submetidos à análise estatística (BANZATTO e KRONKA, ) e as médias.

Author: Shakajar Kegul
Country: Monaco
Language: English (Spanish)
Genre: Politics
Published (Last): 16 February 2007
Pages: 460
PDF File Size: 1.99 Mb
ePub File Size: 13.54 Mb
ISBN: 841-6-59331-217-9
Downloads: 45973
Price: Free* [*Free Regsitration Required]
Uploader: Kebei

Advances in Bioscience and BiotechnologyVol. In both groups the animals were maintained unstressed for 30 days to adjust to the feeding system and adaptation to pasture, and were then banzztto on the 31th, 38th, 45th, and 60th days of the experiment. The effect of social rank on the physiological response during repeated stressful handling in Zebu cattle Bos indicus Physiol Behav. Stressors imposed on cattle The stressors imposed on calves are: Potassium chloride supplementation in heat stressed broilers.

Aversion learning techniques to evaluate dairy cattle handling practices. Blood samples were taken on these days after animals had been immobilization in a trunk contention for 5 min.

Stryphnodendron adstringens, substrate, temperature, dormancy, medicinal plant and forest seed. Banzztto of haematological values in restricted and ad libitum – fed domestic fowls: Moreover, leading cattle to a holding pen is a forced physical exercise [ 122234 ], as is restraint in a ‘Brete’ chute [ 1935 ].

Plasma catecholamine, adrenocorticotropin and cortisol responses to exhaustive incremental treadmill exercise of the Thoroughbred horse. One group was administered Matricaria chamomilla CH 12 in diet and the other the ‘control’ was not.

Bovine stressors may be either physical or psychological.

Feeding effects on broiler thermobalance during thermoneutral and high ambient temperature exposure. Apigenin, a component of Matricaria recutita flowers, is a central benzodiazepine receptors-ligand with anxiolytic effects.


Basic Principles and Implications for Animal Welfare. Carbon dioxide, ammonium chloride, potassium chloride, and performance of heat distressed broilers. Effects of flavonoid phytochemicals on cortisol production and on activities of steroidogenic enzymes in human adrenocortical HR cells. Evaluation of stressor agents in domestic animals.

The handling procedures imposed on cattle in holding pens are stressful, and increase serum cortisol levels, although these levels are almost completely reestablished after animals have adjusted. This response is vital to an organism that has to cope with a challenging environment [ 19 ].

Pharmacological profile of apigenin, a flavonoid isolated from Matricaria chamomilla. The stressors imposed on the cattle were vaccination, corral handling and the presence of people.

Experimentação Agrícola

Transportation of cattle in the dairy industry: The effect of abrupt weaning of suckler calves on the plasma concentrations of cortisol, catecholamines, leukocytes, acute-phase proteins and in vitro interferon-gamma production.

The experiment was conducted to estimate the effect kronk heat stress and the potassium chloride KCl supplementation on performance and physiological characteristics hematological parameters, rectal temperature of broiler chicks. Adjustments to stressors are lronka by changes in the central nervous system at different levels, i. The effects of cognitive behavioral intervention on the attitude and behavior of stockpersons and the behavior and productivity of commercial dairy cows.

Matricaria chamomilla CH12 decreases handling stress in Nelore calves

The stressors imposed on calves are: Published online Jun Find articles by Neuza Maria Frazatti-Gallina. Discussion The handling procedures imposed on cattle in holding pens are stressful, and increase serum cortisol levels, although these levels are almost completely reestablished after animals have adjusted.

A leitura foi realizada por meio de tabela apropriada, sendo os valores expressos em porcentagem. PardoNeusa M. For example, in Argentina it has been estimated to account for losses of 50 million dollars per year [ 7 ]. Body temperature of acclimated broilers during exposure to high temperature. Open in a separate window. Potassium chloride improves the thermotolerance banzzatto chickens exposed to acute heat stress. On the 45th day of this experiment, control animals showed cortisol levels This is kgonka possible explanation the results obtained from the 38th day to the end of the experiment in both the control group and the group treated with Matricaria chamomilla CH On the 45th day cortisol levels were significantly lower in animals fed Matricaria chamomilla CH 12suggesting that this product reduces stress.

  4AA0 8284ENW PDF

Results Animals in both groups showed increased serum cortisol from the beginning of the experiment and peak values were reached on the 45th day. Targets for stress and proprieties of nutrient use. Behavioral characterization of the flavonoids apigenin and chrysin.

How to cite this article. In fact, handling a primary stressor in farm animals and is known banztato impair animal welfare [ 5banxatto2128 ].

Moreover, the effects of the above stressors are increased when bovines are held in modern regimes, such as, intensive systems that impose severe stress [ 37 ] and require higher investments [ 11 ]. These effects may be a consequence of bajzatto inhibiting cortisol production and its calming and anxiolytic effects. The effects of stress on bovine economy and production are remarkable.