slugEffect of environment and age on the physiological responses and blood constituents of Anglo-Nubian goats
Journal Title: Journal of Animal Behaviour and Biometeorology - Year 2014, Vol 2, Issue 4
Abstract
This study aimed to evaluate the effect of the environment on physiological responses and the influence of age on hematological parameters of Anglo-Nubians goats in the semiarid northeast. Were used 22 young goats with 30 to 70 days old, distributed in a completely randomized design, in morning and afternoon shifts, with 22 repetitions. There was no effect of shifts for the variables rectal temperature and respiratory frequency. There was means of rectal temperatures of 39, 21 and 39, 37 °C for the morning and afternoon shifts, respectively. For RF, observed means of 39, 23 and 42.68 mov. / Min for morning and afternoon, respectively. For ST, there was an average of 31, 27 ° C for the morning shift and an average of 33, 31 ° C for the afternoon, having the analysis of variance revealed effect of shift for all the different body parts of the animals and registered the highest average in the afternoon. For the parameters erythrocyte count, corpuscular volume, mean corpuscular volume and mean corpuscular hemoglobin concentration, was significant effect of age. Already for mean hemoglobin and leukocytes, there was no significant difference between the ages studied. The physiological responses of the animals were maintained within the normal pattern, indicating that the thermoregulatory apparatus from the goats was effective in maintaining the homeothermy. The ST was influenced by ambient temperatures, rising in the afternoon shift. The age affects the majority of the blood constituents of young goats. Hematological data obtained can serve as a reference for young goats created in tropical environmental conditions.
Authors and Affiliations
Bonifácio Benicio de Sousa ▪ João Vinícius Barbosa Roberto ▪ Alessandra de Sousa Alves ▪ Elisângela Maria Nunes da Silva ▪ Gustavo de Assis Silva ▪ Bennio Alexandre de Assis Marques ▪ Nayanne Lopes Batista
Keywords
Related Articles
- EP ID EP17884
- DOI http://dx.doi.org/10.14269/2318-1265/jabb.v2n4p117-125
- Views 573
- Downloads 25
slugFuzzy modeling as a tool for the prediction of daily weight gain in broiler chickens
Many varied empiric mathematical models have already been developed to predict broiler chicken growth. However, newly developed tools, such as fuzzy modeling, may facilitate resolutions of problems. The objective of t...
slugThe Brazilian semi-arid environment influences the physiological responses of goats
In this review, we compile information about the physiologic responses of goats to north-eastern Brazil’s semiarid environment and suggest some strategies to avoid the thermal discomfort of these small ruminants. Due...
slugBehavioral repertoire of the giant freshwater prawn Macrobrachium rosenbergii (De Man, 1879) in laboratory
An ethogram was prepared to characterize and describe the behavior of the prawn Macrobrachium rosenbergii in the laboratory so that its behavior would foreground in-depth analysis of the species´s culture. Sixty praw...
slugFeeding behavior of cattle grazing Brachiaria decumbens and Cynodon spp
The objective of this review to assess the feeding behavior of cattle in Brachiaria decumbens pasture and Cynodon spp. The cattle is concentrated today as one of the main activities of the Brazilian. Therefore, it is...
slugRational management raises the Guzerat cattle welfare and improves the efficiency of vaccination work
The experiment was done in the Teaching, Research and Extension Farm (FEPE - UNESP/Ilha Solteira). One hundred and twenty Guzerat cattle of different ages were used in the study: 40 mature cows, 40 yearling steers an...