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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Norouzian, M. A. Valizadeh, R. |
| Description | Country affiliation: Iran Author Affiliation: Norouzian MA ( Department of Animal Science, College of Abouraihan, University of Tehran, Tehran, Iran.) |
| Abstract | A slaughter experiment was conducted to determine the effects of alfalfa particle size on rumen morphology and performance of lambs. Twenty-four Balouchi lambs aged 21 days (9.1 ± 1.1 kg) were randomly fed control (diet without alfalfa hay; CON) and mixed rations containing 15% finely ground (FINE; 2 mm) and 15% coarsely chopped alfalfa hay (LONG; 3 to 4 cm). After a 63 days feeding period, nine animals (three per treatment) were slaughtered to obtain ruminal tissue samples for morphological analyses. Alfalfa particle size did not affect (p > 0.05) papillae density, height, width, epithelium depth and surface area. Coarse alfalfa decreased the stratum corneum and increased (p < 0.05) muscle depth compared with fine and control diets. Neither DNA content and nor RNA concentration of rumen tissue was affected by feeding different diets. Forage particle size did not affect the blood concentration of glucose, urea nitrogen (BUN), beta-hydroxybutyric acid (BHBA) and non-esterified fatty acids (NEFA). Dry matter intake and feed conversion ratio were higher for control diet; however, there were no significant differences between treatments for average daily gain. These data suggest that coarse alfalfa significantly reduces the stratum corneum and increases muscularity of rumen wall and tended to better feed conversion ratio. |
| File Format | HTM / HTML |
| ISSN | 09312439 |
| Issue Number | 6 |
| Volume Number | 98 |
| e-ISSN | 14390396 |
| Journal | Journal of Animal Physiology and Animal Nutrition |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 2014-12-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Physiology Discipline Veterinary Medicine Discipline Nutritional Sciences Animal Feed Analysis Diet Veterinary Rumen Growth & Development Sheep Physiology Animal Nutritional Physiological Phenomena Animals Animals, Newborn Particle Size Journal Article Randomized Controlled Trial |
| Content Type | Text |
| Resource Type | Article |
| Subject | Animal Science and Zoology Food Animals |
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