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首页> 外文期刊>The Bovine Practitioner >Frequent Changing and Rinsing of Drinking Water Buckets Improved Performance of Hutch-Reared Holstein Calves
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Frequent Changing and Rinsing of Drinking Water Buckets Improved Performance of Hutch-Reared Holstein Calves

机译：频繁更换和冲洗饮用水桶改善了荷氏荷斯坦犊牛的性能

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There is often great variation in the cleanliness of drinking water provided to hutch-raised calves. Due to the relationship between dry matter intake and water intake, low water quality in the calf hutch could reduce feed intake and daily gain, and possibly affect health status of the calves. The objective of this study was to compare the performance of hutch-reared calves when drinking water containers were changed/rinsed with decreasing frequency. For three consecutive years, 24 Holstein bull calves (2-7 days of age) were purchased each year from a single commercial dairy. Calves were purchased in four sets of six calves each in September, December, March and June of each year. Calves remained in the hutches for 60 days, receiving milk re-placertwice daily. A concentrate mix was available at all times. Of the six calves in each set, two had their drinking water buckets rinsed daily, two were rinsed at 7-day intervals and two at 14-day intervals. Average daily gain (ADG) of calves was measured during the 60-day period while in hutches, and through a subsequent 100 to 110-day post-weaning feeding period.The frequency of changing/rinsing drinking water buckets affected ADG of calves while in the hutches: daily, 1.55 Ib (0.70 kg)/day; 7-day, 1.48 Ib (0.67 kg)/day; 14-day, 1.40 Ib (0.64 kg)/day. All means were different (P < 0.05). These differences in ADGcarried over through the post-weaning period: daily, 3.12 Ib (1.42 kg)/day; 7-day, 3.01 Ib (1.37 kg)/day; 14-day, 2.90 Ib (1.32 kg)/day. The daily and 14-day treatments were different (P < 0.05), while the 7-day treatment was intermediate. Calves assigned to the daily and 7-day changing/rinsing regimen required a similar number (1.25) of medical treatments while in the hutches (P > 0.05). When drinking water buckets were changed/rinsed at 14-day intervals, calves required 1.75 medical treatments, an increase of40%. Calves on the 14-day regimen were 2.48 (95% CI: range 1.32 to 4.68) times more likely (P < 0.01) to receive more than one treatment, compared to calveson daily and 7-day changing/rinsing regimens. Thus, a seemingly minor management practice such as frequency of changing/rinsing drinking water buckets in calf hutches can have an impact on calf performance and health.
机译：提供给双腿饲养小牛的饮用水的清洁度通常差异很大。由于干物质摄入量和水分摄入量之间的关系，小牛箱中的水质低会降低饲料摄入量和日增重，并可能影响小牛的健康状况。这项研究的目的是比较以减少的频率更换/冲洗饮用水容器时饲养的小牛的性能。连续三年，每年从一家商业奶牛场购买24头荷斯坦牛犊（2-7天大）。在每年的9月，12月，3月和6月，以四组的形式购买小牛，每组六只。小牛在储藏室中呆了60天，每天换奶两次。浓缩混合物始终可用。每组六头犊牛中，有两只每天都要洗净水桶，两只要每隔7天漂洗一次，两只要每隔14天漂洗一次。在断奶后的60天内和断奶后的100至110天期间测量小牛的平均日增重（ADG）。更换/冲洗饮用水桶的频率会影响小牛的平均日增重储物箱：每天1.55磅（0.70千克）/天; 7天，每天1.48磅（0.67千克）; 14天，每天1.40磅（0.64千克）。所有均值均不同（P <0.05）。在断奶后期间，ADG的这些差异仍然存在：每天3.12 Ib（1.42 kg）/天; 7天，每天3.01磅（1.37千克）; 14天，每天2.90磅（1.32千克）。每天和14天的治疗是不同的（P <0.05），而7天的治疗是中度的。每天和7天更换/冲洗方案的犊牛在收割时需要类似数量（1.25）的药物治疗（P> 0.05）。每隔14天更换/漂洗一次饮用水桶时，犊牛需要进行1.75次药物治疗，增加了40％。与每天犊牛和7天换胎/冲洗方案相比，采用14天方案的犊牛接受一种以上治疗的可能性高（p <0.01）的2.48倍（95％CI：1.32至4.68）。因此，看似次要的管理实践（例如，更换/漂洗小牛箱中的饮用水桶的频率）可能会影响小牛的性能和健康。

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