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体外两步法和体内法评价驴不同CHO-FS/NFC比例饲粮及8种饲料原料干物质降解率及发酵参数
基金项目(Foundation): 国家自然科学基金项目(32260844); 天山英才“三农”骨干人才培养项目(2024); 青河县驴产业及驴乳深加工研发团队引才育才项目(2024)
邮箱(Email): zxldky@126.com
DOI:
发布时间: 2024-12-30
出版时间: 2024-12-30
网络发布时间: 2024-12-30
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摘要:

本试验旨在研究饲料不同组分在驴体内外降解率和体外发酵参数。结果发现:1)在体外酶消化法干物质降解率中,残次枣原料的降解率高于其余7种原料(P<0.05),LCS组饲料的降解率高于其余两组(P<0.05)。2)玉米产气量高于其余7种饲料(P<0.05)。在第24-36 h内,LCS组饲料总产气量高于其余两组(P<0.05)。3)体外发酵参数中:苜蓿、玉米青贮和残次枣pH值高于其余5种饲料(P<0.05)。HCS组乙酸含量高于LCS组(P<0.05)。4)麦麸、苜蓿、玉米青贮、麦秸和三种混合饲料体外总干物质降解率高于体内法(P<0.05)。总体上,采用本研究体外两步法能够反映饲料在驴体内降解的真实情况。

Abstract:

The aim of this experiment was to study the in vitro degradation rate of different components of feed in donkeys and in vitro fermentation parameters. The results revealed that: 1) In the degradation rate of dry matter by in vitro enzymatic digestion, the degradation rate of residual date ingredients was higher than that of the remaining seven ingredients (P < 0.05), and the degradation rate of feeds in the LCS group was higher than that of the remaining two groups (P < 0.05). 2) The gas production of corn was higher than that of the remaining seven feeds (P < 0.05). During the 24th-36th h, the total gas production of feeds in the LCS group was higher than the remaining two groups (P < 0.05).3) Among the in vitro fermentation parameters: alfalfa, maize silage and residual dates had a higher pH than the remaining five feeds (P < 0.05).The acetic acid content of the HCS group was higher than that of the LCS group (P < 0.05).4) The total dry matter degradation rate of wheat gluten, alfalfa, maize silage, wheat stover and the three mixed feeds in vitro was higher than the in vivo method (P < 0.05). Overall, the in vitro two-step method used in this study was able to reflect the real situation of feed degradation in donkeys.

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基本信息:

中图分类号:S822.5

引用信息:

[1]张淑贤,许涛,张乐天,等.体外两步法和体内法评价驴不同CHO-FS/NFC比例饲粮及8种饲料原料干物质降解率及发酵参数[J].经济动物学报().

基金信息:

国家自然科学基金项目(32260844); 天山英才“三农”骨干人才培养项目(2024); 青河县驴产业及驴乳深加工研发团队引才育才项目(2024)

发布时间:

2024-12-30

出版时间:

2024-12-30

网络发布时间:

2024-12-30

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