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Mupfiga S, Katiyatiya CL, Chikwanha OC, Molotsi AH, Dzama K, Mapiye C. Meat production, feed and water efficiencies of selected South African sheep breeds. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Effects of replacing corn with by-product from biscuit manufacture on feed intake, digestibility, nitrogen balance, ingestive behavior, and growth performance of pure or crossbred Morada Nova sheep. Trop Anim Health Prod 2022; 54:175. [DOI: 10.1007/s11250-022-03177-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 04/14/2022] [Indexed: 10/18/2022]
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Godínez-Olmedo JT, Corona L, Castrejón-Pineda FA, García-Pérez Á, Barreras A, Soto-Alcalá J, Plascencia A. Optimal level of physically effective neutral detergent fibre in corn stover cracked-corn-based finishing diets on the growth performance, dietary energetics, carcase characteristics, and nutrient digestion in fattening lambs. ITALIAN JOURNAL OF ANIMAL SCIENCE 2022. [DOI: 10.1080/1828051x.2022.2034538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Josue T. Godínez-Olmedo
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Cd. de México, México
| | - Luis Corona
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Cd. de México, México
| | | | - Águeda García-Pérez
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Cd. de México, México
| | - Alberto Barreras
- Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, Mexicali, Baja California, México
| | - Jorge Soto-Alcalá
- Departamento de Ciencias Naturales y Exactas, Universidad Autónoma de Occidente, Guasave, México
| | - Alejandro Plascencia
- Departamento de Ciencias Naturales y Exactas, Universidad Autónoma de Occidente, Guasave, México
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Whole corn grain-based diet and levels of physically effective neutral detergent fiber from forage (pefNDF) for feedlot lambs: Digestibility, ruminal fermentation, nitrogen balance and ruminal pH. Small Rumin Res 2021. [DOI: 10.1016/j.smallrumres.2021.106567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Xie B, Huang W, Zhang C, Diao Q, Cui K, Chai J, Wang S, Lv X, Zhang N. Influences of starter NDF level on growth performance and rumen development in lambs fed isocaloric and isonitrogenous diets. J Anim Sci 2020; 98:5811257. [PMID: 32249903 DOI: 10.1093/jas/skaa093] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/20/2020] [Indexed: 11/14/2022] Open
Abstract
Neutral detergent fiber (NDF), as the main component of structural carbohydrate in forage, is a vital factor impacting the performance of young ruminants. The objective of this study was to evaluate the effect of starter NDF level on the rumen fermentation and morphometrics of lambs fed isocaloric and isonitrogenous diets. One hundred Hu sheep lambs (18 days of age and 6.1 ± 0.1 kg body weight [BW]) were randomly assigned to one of the four starter diets differing in their NDF levels on a dry matter (DM) basis: 1) diet with 14% NDF (NDF14), 2) diet with 18% NDF (NDF18), 3) diet with 22% NDF (NDF22), and 4) diet with 26% NDF (NDF26). Lambs were fed milk replacer with designed starters from 21 to 60 d of age and then transitioned to the same starter feed until 90 d of age. Six lambs from each treatment (close to the average BW of the corresponding treatment) were selected and slaughtered at 90 d of age for measuring rumen fermentation, anatomical development, and morphometric characteristics. Lambs receiving NDF22 and NDF26 starter diets had greater (P < 0.05) intake of starter and total DM, and average daily gain during the overall period, thereby heavier (P < 0.05) final weights at 90 d of age compared with those fed NDF14 starter diet. At 90 d of age, lambs fed NDF22 and NDF26 starters had higher rumen pH, followed by lower propionate, higher acetate concentrations (P < 0.05), and a higher acetate-to-propionate ratio compared with those fed NDF14 and NDF18 starters (P < 0.05). No significant differences of the full and empty weight of reticulorumen were observed among treatments; however, the reticulorumen weight expressed as a percentage of the complex stomach weight was lower (P < 0.05) in lambs fed NDF22 and NDF26 starters compared with those fed NDF14 starter. Furthermore, NDF14 lambs had the thickest keratin layer and epithelium compared with those in the other treatments but showed the thinnest muscle layer (P < 0.05). These results suggest that increasing starter NDF levels can ameliorate the rumen fermentation environment and alleviate hyperkeratosis and plaque formation in the rumen epithelium. In summary, including 22% and 26% NDF in the pelleted starter can improve the performance of lambs.
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Affiliation(s)
- Biao Xie
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and rural affairs, Beijing, China.,College of Animal Science and Veterinary, Shanxi Agricultural University, Taigu, China
| | - WenQin Huang
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and rural affairs, Beijing, China
| | - ChunXiang Zhang
- College of Animal Science and Veterinary, Shanxi Agricultural University, Taigu, China
| | - QiYu Diao
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and rural affairs, Beijing, China
| | - Kai Cui
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and rural affairs, Beijing, China
| | - JianMin Chai
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR
| | - ShiQin Wang
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and rural affairs, Beijing, China
| | - XiaoKang Lv
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and rural affairs, Beijing, China
| | - NaiFeng Zhang
- Feed Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and rural affairs, Beijing, China
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