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首页> 美国卫生研究院文献>Translational Animal Science >Effects of holes in plastic film on the storage losses in total mixed ration silage in round bales
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Effects of holes in plastic film on the storage losses in total mixed ration silage in round bales

机译：塑料薄膜中的孔洞对圆捆总混合日粮青贮饲料储存损失的影响

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摘要

The ensilage of total mixed ration (TMR) is a technology designed to help farmers with limitations to provide a balanced diet for their herds. Our aim was to evaluate the conservation of TMR ensiled in round bales with or without holes in the wrapping plastic film. Eight round bales of a corn silage-based TMR of 1,000 kg (370 kg DM/m ) were prepared. Ten days (d) after ensiling, four bales were randomly punctured with two holes of 25 cm each in opposite sides of the bale. The temperature in the center of the bales was recorded during the storage using dataloggers. After 60 d of storage, bales were weighted to assess dry matter (DM) recovery. Silages were sampled for measuring DM content, chemical composition, pH, lactic acid, and microbial counts. The temperature of the sliced bale face was assessed by infrared thermography. The holes in the plastic affected the DM content, DM recovery, and pH, whereas lactic acid, microbial counts, and temperature were not affected by treatments. The holes in the sealing plastic film should be avoided. However, holes of 25 cm each were not capable of causing expressive losses in TMR silage stored in 1,000 kg bales.
机译：青贮饲料是一种旨在帮助有限制的农民为其畜群提供均衡饮食的技术。我们的目的是评估包裹在塑料薄膜中有孔或无孔的圆形捆中TMR的保存情况。制备了八个圆捆的基于玉米青贮饲料的1000 kg（370 kg DM / m 2）。包好后十天（d），将四个草捆随机打孔，在草捆的相对两侧各放25个孔。在存储过程中，使用数据记录仪记录了棉包中心的温度。储存60天后，称重棉包以评估干物质（DM）的回收率。取青贮饲料以测量DM含量，化学成分，pH，乳酸和微生物数量。通过红外热成像法评估切片的包面的温度。塑料中的孔影响DM含量，DM回收率和pH值，而乳酸，微生物数量和温度不受处理的影响。应避免在密封塑料膜上开孔。但是，每个25厘米的孔都不能引起存储在1,000公斤棉包中的TMR青贮饲料中的表达损失。

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