Abstract
current study was conducted to determine the effects of Chromium piclonat supplementation on some productive traits and serum parameters of male rabbit exposed to heat stress by used electric heaters ,twenty four male rabbits were randomly divided into four groups 6 for each, first group put in normal suitable climate condition based diet without additional Chromium and kept as positive control group , while The other three groups exposed to heat stress , the basal diet was consisted of 0, 300 , and 500 ppb of Chromium piclonate respectively as a feed additives . All rabbit received feed and water ad libitum, the results showed that there were Increasing organic Cr supplementation 300 and 500 pbb of two treated groups resulted in an increase in body weight compared with negative and positive control group , the serum glucose and cortisone hormone concentrations of both treated groups were decrease, as dietary Cr level increased (P<0.05), but Cr supplementation did not affect total protein, albumen and globulin. These data indicated that organic Cr supplementation increased some performance traits, particularly body weight production and decreased in glucose and cortisone hormone while there were not significant effect in the total of serum protein, Albumin and globulin ,it can be concluded that adding chromium piclonat in dose 300,500pbb in diet of rabbits during hot periods has a benefits to overcome deterioration in some performance traits related to oxidative stress results from heat stress.
Highlights
Heat stress (HS) defined as a stress inflicted by a wide range of environmental conditions that induce a state of physiological strain within an animal’s body, which means that animals are not able to regulate their heat homeostasis passively (50)
Farm animal characterized by having special zones of thermal comfort (ZIC), depending up on some factors like relative humidity, degree of sun light strength,and air surrounding speed ; heat stress caused decreased in appetite and decrease dry matter feed intake that lead to loss of weight as well as decrease in reproductively (47)
Some research has shown that the chromium (Cr) addition may reduce the impact of stress on the animal, and may act as an intermediary of immunosuppression in animals exposed to heat stress (3,35)Chromium (III) is an essential nutrient that empowers the action of insulin and affects the metabolism of carbohydrates, lipids and proteins
Summary
تأثير استخدام بايكلونات الكروميوم على بعض الصفات الانتاجية والدموية في ذكور الا ارنب المعرضة للإجهاد الح ارري. ارنبا ذكريا و قسمت24 اخذت.على بعض الصفات الإنتاجية وبعض مكونات مصل الدم لذكور الأ ارنب المعرضة للإجهاد الح ارري. جزء بالبليون بالمقارنة مع مجموعتي السيطرة السالبة و الموجبة كما اظهرت انخفاضا معنويا500 و300في مجموعتي المعاملة. الحسابي بالمقارنة مع مجموعتي السيطرة السالبة و الموجبة واستنادا لهذة النتائج يمكن ان نخلص الى ان اضافة بايكلونات الكروميوم. العليقة الاساسية, الاداء الانتاجي, اضافات علفية, مصل الدم, هرمون الكورتيزون: الكلمات المفتاحية
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