اثر باكلوفن روي ميزان توليد و تركيبات شير در گاوهاي نژاد هلشتاين

The effect of baciofen on the amount of milk production and its composition in Holstein cows

This research was done to determine the effect of baclofen - GABAB receptor agonist - on milk production and its composition. Twelve Holstein cows were divided to four groups, and in each groups 25, 50, 75 and 100 [mg/ (kg/b.w.)] baclofen were daily injected for four days. Cows were daily milked once a day in sterile milking room for ten days: Milk compositions were measured and recorded by Milko-Scan machinery. This study indicated that this treatments increased milk yield 17, 14, 15 and 16 percent, respectively (p<0.01). Protein, lactose and dry matter percent did not change significantly in any treatments. However, fat percent significantly increased (p<0.01). The results of this study suggest that baclofen increases milk production and fat percent; however, it does not have any effect on other milk compositions.