Effectivity of Mg-Sulphate and Mg-Acetate in Alleviating Temperature Stress in The Rex Rabbits

• Main Author: Perpustakaan UGM, i-lib
• Format: Article NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 1995
• Subjects: Jurnal i-lib UGM
• Online Access: https://repository.ugm.ac.id/26609/; http://i-lib.ugm.ac.id/jurnal/download.php?dataId=9642
• Institution: Universitas Gadjah Mada

ABSTRACT Heat stress causes a reduction of Mg-level of cell content, hence the metabolic activities, especially those of carbohydrates-relating reactions. Its consequence is poor growth of annuals_ An experiment was conducted to study the inclusion Mg-acetate or Mg-sulphate into the diet on the performance of Rex rabbits when die animals were exposed to heat and cold stress, Dietary inclusion of Mg-acetate and Mg-sulphate was 0.17 and 3,0 %, respectively. A control diet [without Mgi was used to compare with. Sixty weanling Rex rabbits 16 week-oldI were allocated randomly into 3 dietary k treatments within each of four temperature r controlled rooms [32°, 26°, 18° and 16°C I Within each room the rabbits were caged individually, Experiment was carried out for 8 weeks and measurements were made on feed, water and oxygen intake IF1, WI and 01J, body-weight gain 1BWG1, feed conversion [FCR1, body temperature [BT], level of plasm-Mg and plasm-thyroxin. Results from the analysis of variance followed by an LSD test indicated that no significant interaction occured between Mg inclusion with the room temperature on the measured parameters. Most measured responses were significantly influenced by environmental temperature, but not by dietary Mg-treatment, Increased room temperature [hotter] decreased Fl. BWG, feed efficiency and plasm-thyroxine level. In contrast, WI, 0I and 131' increased with the increased room temperature, Plasm Mg-level was significantly affected by type of Mg-compound. Inorganic Mg- sulphate increased plasm-Mg level more than did the organic Mg-acetate, There was, however, a tendency that organic Mg [Mg-Acetate] had a more profound effect than thc inorganic Mg. Values for intake of fixd, water and oxygen, BWG, FCR, BT, plasm-Mg and plasm-thyroxine level varied from 79 to 126 girabbitid, 1821 to 2734 nil/rabbit/ week and 1.29 to 2,64 cchnin/kgt).75, 16 to 24 girabbitid, 4,48 to 5.21, 38,68 to 39,99°C, 31 to 41 mg/1 and from 1.55 to 1.89 uginil, respectively, Key Words: Mg-Sulphate, Mg-Acetate, Temperature, Stress, Rex Rabbit