未加工和蒸压烘烤法巴豆籽对泌乳奶牛生产性能的影响

IF 1.2 4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE
María E. Rodríguez Espinosa, V. Guevara-Oquendo, David A. Christensen, Peiqiang Yu
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引用次数: 0

摘要

引入新饲料作为饲喂选择需要可靠的信息来证明其对动物生产率的有益影响。本研究的目的是评估添加 10%的生法巴豆籽(R-FBS)和蒸汽压力烘烤法巴豆籽(SP-FBS)对奶牛生产性能和新陈代谢的影响。雪鸟 FBS 采用 121°C、0、7.5、15 和 30 分钟的蒸汽压力烘烤(SPT)处理。使用 R-FBS(FBS0)和 SP-FBS(FBS7.5、FBS15 和 FBS30)配制全混合日粮(TMRs)。给奶牛(第 2 和第 3 个泌乳期,69±15 DIM,平均体重 720 千克)饲喂全混合饲料 120 天(2020 年 11 月至 2021 年 2 月)。数据采用 4×4 LSD 重复模型进行分析,处理为固定效应,奶牛为随机效应。随着加工时间的增加,饲料效率呈线性下降(P = 0.02),从FBS0的1.63降至FBS30的1.52。牛奶尿素氮(MUN)从 FBS0 的 12.18 毫克/天降至 FBS30 的 11.10 毫克/天(线性 P < 0.01)。加热 FBS 7.5 分钟可提高奶牛的乳脂率和饲料效率。我们认为,高泌乳期奶牛可以饲喂当地种植的法巴豆,以提高其生产性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Effects of Raw and Steam-Pressure Toasted Faba Bean Seeds in the Production Performance in Lactating Dairy Cows
Introducing new feeds for feeding options requires reliable information to prove beneficial impacts on animal productivity. The objective of the study was to evaluate the effects of 10% inclusion of raw Faba bean seeds (R-FBS) and steam-pressure toasted FBS (SP-FBS) on dairy production performance and metabolism. Snowbird FBS were processed by steam pressure toasting (SPT) at 121°C for 0, 7.5, 15, and 30 min. Total mixed rations (TMRs) were prepared using R-FBS (FBS0) and SP-FBS (FBS7.5, FBS15, and FBS30). The TMRs were fed to cows (2nd and 3rd lactation, 69±15 DIM, and 720 kg mean BW) for 120 days (November 2020 to February 2021). Data were analyzed using a repeated 4×4 LSD model with treatment as the fixed effect and cows as the random effect. Feed efficiency was linearly decreased as processing times increased (P = 0.02) from 1.63 with FBS0 to 1.52 with FBS30. Milk urea nitrogen (MUN) decreased from 12.18 with FBS0 to 11.10 mg/dl with FBS30 (linear P < 0.01). Heating FBS for 7.5 min could be suitable for increasing milk fat and feed efficiency in dairy cows. We believe that high-lactating dairy cows can be fed locally grown Faba beans to support their production performance.
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来源期刊
Canadian Journal of Animal Science
Canadian Journal of Animal Science 农林科学-奶制品与动物科学
CiteScore
2.30
自引率
0.00%
发文量
51
审稿时长
6 months
期刊介绍: Published since 1957, this quarterly journal contains new research on all aspects of animal agriculture and animal products, including breeding and genetics; cellular and molecular biology; growth and development; meat science; modelling animal systems; physiology and endocrinology; ruminant nutrition; non-ruminant nutrition; and welfare, behaviour, and management. It also publishes reviews, letters to the editor, abstracts of technical papers presented at the annual meeting of the Canadian Society of Animal Science, and occasionally conference proceedings.
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