دورية أكاديمية

Almond hulls and shells as an alternative fiber source in limit-fed growing beef cattle diets

التفاصيل البيبلوغرافية
العنوان: Almond hulls and shells as an alternative fiber source in limit-fed growing beef cattle diets
المؤلفون: Duncan, Zachary M, DeBord, Zachary L, Pflughoeft, Madison G, Suhr, Kyler J, Hollenbeck, William R, Brazle, Frank K, Wecker, Haley K, Paulk, Chad B, Titgemeyer, Evan C, Olson, K C, Blasi, Dale A
المصدر: Translational Animal Science ; volume 8 ; ISSN 2573-2102
بيانات النشر: Oxford University Press (OUP)
سنة النشر: 2024
مصطلحات موضوعية: General Veterinary, Animal Science and Zoology
الوصف: Almond hulls and shells are a by-product of almond production that can be incorporated as a feed ingredient in beef cattle diets. Three experiments were conducted to determine the effects of hammermill screen size on almond hull and shell bulk density and inclusion of ground or non-ground almond hulls and shells in limit-fed growing diets on growth performance, diet digestibility, and ruminal fermentation characteristics of beef cattle. In experiment 1, almond hulls and shells were ground with a laboratory-scale hammermill using no screen, a 11.1-mm screen, a 19.1-mm screen, or a 25.4-mm screen. Each screen-size treatment was ground at three separate time points (n= 3 replications/treatment). Grinding almond hulls and shells with no screen increased bulk density by 111% and minimized proportions of fine particles; therefore, almond hulls and shells ground using no screen were included as a treatment in the following experiments. In experiment 2, 364 steers (initial body weight [BW]: 257± 20.7 kg) were blocked by truckload (n = 4), stratified by BW, and assigned to pen within block. Pens were randomly assigned to 1 of 4 experimental diets (n= 10 pens/treatment). The control diet (CON) contained (DM basis) 39.5% dry-rolled corn, 7.5% supplement, 40% wet-corn gluten feed, and 13% prairie hay. Non-ground (13AH) or ground (13GAH) almond hulls and shells replaced prairie hay and were fed at 13% of diet DM or non-ground almond hulls and shells were fed at 26% of diet DM and replaced 13% prairie hay and 13% dry-rolled corn (26AH). Diets were limit-fed at 2.2% of BW daily (DM basis) for 56 d. Overall average daily gains (ADG) were greater (P ≤ 0.05) for CON, 13AH, and 13GAH compared with 26AH. In addition, ADG from days 14 to 56 were greater (P= 0.03) for 13GAH and tended to be greater (P = 0.09) for 13AH compared with CON. Experiment 3 was a 4 × 4 replicated Latin square in which 8 ruminally cannulated heifers (initial BW = 378 ± 44.0 kg) were fed diets from experiment 2. Apparent dry matter digestibility did ...
نوع الوثيقة: article in journal/newspaper
اللغة: English
DOI: 10.1093/tas/txae025
DOI: 10.1093/tas/txae025/56798080/txae025.pdf
DOI: 10.1093/tas/txae025/57016570/txae025.pdf
الإتاحة: https://doi.org/10.1093/tas/txae025Test
حقوق: https://creativecommons.org/licenses/by/4.0Test/
رقم الانضمام: edsbas.AACFB8C3
قاعدة البيانات: BASE