Goats Of Different Ages Research Articles

Reference ranges for hematological values in landrace goats

Hematological analyses were performed in Danish landrace goats of different ages from birth to over 5 years of age. Hemoglobin concentration, packed cell volume, number of erythrocytes and leukocytes were lower in neonates and juveniles than in goats of other ages. Their levels increased to maximum within 8–12 months. Mean corpuscular volume and mean corpuscular hemoglobin were highest in neonatal kids and decreased with age concomitantly with increases in erythrocyte counts, hemoglobin concentration and hematocrit. The nonparametric range from 5th to 95th percentile intervals were within mean ± 2 s.d. ( x + 2s) in most parameters except for basophils, monocytes, eosinophils and band neutrophil counts. There were significant age differences except for mean corpuscular hemoglobin concentration. Sex differences were noted only for total leukocyte counts and mean corpuscular hemoglobin concentration at some ages. Age influence makes distinction between kids, juveniles and adult goats necessary for interpretation of laboratory results.

Effects of age and season on mortality of goats due to infections and malnutrition in northeast Mexico

Influences of age and season on occurrence of deaths diagnosed as due to pneumonia, enteritis, pneumoenteritis and malnutrition in goats were studied. Data were from 251 necropsies of dairy and native goats in semiconfinement and on a good health management program in northeast Mexico. Annual mortality was 21.5%. Pneumonia accounted for the majority of losses (55% of all deaths). Using the log-odds method, trends were noted for the youngest animals to be at increased risk of dying due to enteritis (10 times higher than adult animals, P<0.05). Adult animals had the highest risk of dying due to pneumonia and malnutrition (two times higher than young animals, P<0.05). Deaths diagnosed as due to enteritis were significantly higher in summer ( P<0.01) and the occurrence of deaths due to this disease were significantly correlated ( P<0.05) with temperature and precipitation. Significant seasonal patterns in deaths due to pneumonia were not detected. These results suggested that summer months favor the occurrence of deaths due to enteritis and that kids are the most susceptible animals. The incidence of various lesions associated with death of goats of different ages in different seasons will facilitate planning future studies designed to identify specific causative agents and reduce their presence.

Hydatid disease in goats in Bangladesh

Abstract A total of 12 344 goats of different ages from various localities of Bangladesh were examined for the presence of hydatid disease and 1024 (8.29%) were found to be infected. The incidence of infection by organ was: liver 36.72%, lungs 32.03%, spleen 4.69%, heart 3.13%, kidney 1.56%, omentum 0.78%, and both liver and lungs 21.09%. The severity of infection was: weak (84.56% and 86.55%), medium (13.32% and 11.87%) and heavy (2.12 and 1.58%) in the liver and lungs respectively. Of the 1792 cysts examined, 175 (9.76%) were fertile, 1342 (74.89%) were sterile, 206 (11.50%) were calcified, 47 (2.62%) were supporative and 22 (1.23%) were undeveloped. The incidence of infection by age of host was: 0.63% between 0 and 1 year, 2.48% between 1 and 2 years, 5.53% between 2 and 3 years, 16.80% between 3 and 5 years and 21.64% for 5 years old and above.