Effects of Lasalocid on Rumen Fermentation and the Contents of Purine Derivatives in Urine in Simmental Cattle
Author(s): ZHANG Yan-mei, SHI Zhou-ge, JIAO Guang-yue
Pages: 7-10
Year: 2015 Issue: 23
Journal: China Dairy Cattle
Keyword: Lasalocid; Rumen fermentation; Urine; Purine derivatives; Simmental cattle;
Abstract: The objective of this study was to evaluate the effects of lasalocid on rumen fermentation and urinary purine derivatives in Simmental cattle. Forty-eight 12-months-old Simmental bulls with good body condition and similar body weight were divided into four groups at random. The control group was fed basic diet. The supplement of lasalocid with 100, 200 and 300 mg per cattle per day was added to the basic diet, respectively. Three cattles in each group were selected randomly to do digestion metabolism experiments after feeding experiments. The results showed that ruminal acetate content, ammonia N concentration in groups supplemented lasalocid at 200mg/d and 300mg/d were lower than that of in control group (P<0.05). Concentrations of urinary allantion and purine derivatives in groups supplemented lasalocid at 200mg/d and 300mg/d were higher than that of in control group and group supplemented lasalocid at 100mg/d (P<0.05). The study showed that the addition of lasalocid in beef cattle diet could improve rumen fermentation and nitrogen utilization, the optimal dose of lasalocid was 200mg/d.
Pages: 7-10
Year: 2015 Issue: 23
Journal: China Dairy Cattle
Keyword: Lasalocid; Rumen fermentation; Urine; Purine derivatives; Simmental cattle;
Abstract: The objective of this study was to evaluate the effects of lasalocid on rumen fermentation and urinary purine derivatives in Simmental cattle. Forty-eight 12-months-old Simmental bulls with good body condition and similar body weight were divided into four groups at random. The control group was fed basic diet. The supplement of lasalocid with 100, 200 and 300 mg per cattle per day was added to the basic diet, respectively. Three cattles in each group were selected randomly to do digestion metabolism experiments after feeding experiments. The results showed that ruminal acetate content, ammonia N concentration in groups supplemented lasalocid at 200mg/d and 300mg/d were lower than that of in control group (P<0.05). Concentrations of urinary allantion and purine derivatives in groups supplemented lasalocid at 200mg/d and 300mg/d were higher than that of in control group and group supplemented lasalocid at 100mg/d (P<0.05). The study showed that the addition of lasalocid in beef cattle diet could improve rumen fermentation and nitrogen utilization, the optimal dose of lasalocid was 200mg/d.
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