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Correlation between production performance and feeding behavior of steers on pasture during the rainy-dry transition period

机译：雨水干旱期间牧场生产性能与饲养行为的相关性

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摘要

The aim of this study was to evaluate the correlation between production performance and feeding behavior of steers reared on pasture during the rainy-dry transition period. Twenty-two A 1/2 Holstein-Zebu crossbred steers at an average age of 10 months and with an average initial body weight of 234.5 +/- 16.0 kg were distributed in a completely randomized design with two types of supplementation and eleven replications. Pearson's linear correlation analysis was performed between behavioral variables and weight gain and feed conversion. Correlation coefficients were tested by the t test. The time expended feeding at the trough was positively correlated (P & 0.05) with average daily gain (ADG) and with the number of periods of permanence at the trough. Bite rate and the number of bites per day were positively correlated (P & 0.05) with ADG and negatively (P & 0.05) with feed conversion, unlike the number of bites per swallow, which was negatively correlated (P & 0.05) with ADG. There was a positive correlation (P & 0.05) between feed efficiency in dry matter and neutral detergent fiber and ADG. Feeding behavior characteristics have little association with the production performance of cattle on pasture receiving mineral or energy-protein supplementation.
机译：本研究的目的是评估在雨水干燥期间牧草中饲养的阉牛的生产性能和饲养行为之间的相关性。平均为10个月的平均年龄的二十二个A 1/2 Holstein-Zebu杂交操纵器，平均初始体重234.5 +/- 16.0kg分布在完全随机化设计中，具有两种类型的补充和十一复制。 Pearson的线性相关性分析是在行为变量和体重增加和进料转换之间进行的。通过T检验测试相关系数。在槽中饲养的时间呈呈正相关（P＆amp; 0.05），平均每日增益（ADG），并且在槽中的持久性期间。咬合率和每天的咬伤数与ADG和带负面（P＆amp; 0.05）呈正相关（P＆amp; 0.05），与饲料转化不同，与每吞咽的咬伤数量是负相关的（p ＆amp; <0.05）与ADG。干物质和中性洗涤剂纤维和ADG的饲料效率之间存在正相关（P＆amp; 0.05）。饲养行为特征与牛在接受矿物质或能量蛋白质补充的牧场的生产性能很小。

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