Premature ve normal doğan buzağılarda rektal ısı ile yaşama güçleri arasındaki ilişkileri
Bu çalışmada premature doğan buzağılar ile zamanında doğan ve herhangi bir sorunu olmayan buzağılar arasında rektal vücut ısıları karşılaştırılarak, bulgularla yaşama güçleri arasındaki ilişkinin ortaya konması amaçlanmıştır. Bu amaç için 24 adet Holstein buzağı kullanıldı. Çalışmada ortalama 262 günlük gebelik süresi sonunda doğan buzağılar prematüre grup (n=12) ve ortalama 280 günlük gebelik süresi sonucu doğan buzağılar ise spontan grup olarak (n=12) ayrıldı. Buzağıların doğum sonrasında 30, 60, 120. dakikalarda; 6, 12, 24, 48. saatlerde ve 4, 5, 6. günlerde rektal vücut ısılara ölçüldü. Her iki grupta yer alan hayvanların APGAR değerlendirmesine göre genel durumları belirlendi. Premature ve normal doğan buzağıların doğum anında rektal yol ile saptanan vücut ısısında her iki grupta da doğum sonrası 30, 60, 90 ve 120. dakikalarda azalma gözlendi ve 120. dakikada bu ölçüm premature grupta ortalama 34.7 °C ve spontan grupta ortalama 38.7 °C olarak saptandı (p
Rectal temperatures and viability competence of premature and normal calves
İn this study, a comparison in rectal temperature between premature calves with asfecsia and normal calves has been done to estimate the relation between rectal temperature and viability. For this purpose 24 Holstein calves were used. The first group included premature calves with a mean gestational period of 262 days (Premature group; n=12) whereas the second group (Spontan group; ri=12) included normal calves of a mean gestational period of 280 days. The body temperatures of calves were recorded at 30, 60, 90, 120. minutes; 6, 12, 24, 48. hours and 4, 5, 6. days after birth. General conditions of all calves were observed with the APGAR observation system. The post natal (PN) body temperature of all calves in premature group and normal group were found 38.7 °C and 38.9 °C, respectively and there was no statistical significance. This similar findings decreased in both groups at 30, 60, 90 and 120 minutes after birth. The body temperatures were 34.7 °C in premature group and 38.7 °C in spontan group and there was statistical significance (p<0.001) at 120 minutes after birth. Decreasing of body temperatures occured more dramatically in premature group. Three calves at 90. min. and six calves at 12. hr post natal died because of asphyxia. Alt¬hough in both groups body temperature has been compansated at 6-12 hr, only the spontan group responded to this compansation. Compansation of body temperature did not effect the viability of calves in premature group, and increase of body temperature observed as a complication of pneumania and general infection. In premature group, there were 3 alive and 3 death calves after 48 hr., but there were no alives at the end of the fourth day. As a result; body temperatures of premature calves decreased by the reduction of viability caused by the dyspnea at early post natal period. This reduction of viability caused sudden deaths. On spontan calves there were no serious problems in thermoregulation and viability. The control of rectal temperature of premature calves might be advisable for the determination of the prognosis and treatment.
