Dissertation > Excellent graduate degree dissertation topics show

Effects of Different NDF Levels on Growth Performance,Caecum Fermentation,Growth of Digestive Tract and Immune of Mucous Membrane on Rex Rabbits

Author: RenDianFu
Tutor: LiFuChang
School: Shandong Agricultural University
Course: Animal Nutrition and Feed Science
Keywords: neutral detergent fiber rex rabbit growth performance furquality caecum fermentation growth of digestive tract immune of mucous membrane
CLC: S829.1
Type: Master's thesis
Year: 2013
Downloads: 16
Quote: 0
Read: Download Dissertation

Abstract


The experiment was conducted to investigate the effects with one factor at five dietaryNDF levels on the growth performance, caecum fermentation,growth of digestive tract andimmune of mucous membrane on rex rabbits. The total test was divided into two stages: fromweaning to3-month old,and from3to5-month old. The dietary NDF of five groups were26%、28%、30%、32%、34%. Flowing are results of the experiment:(1)Two hundred weaned Rex Rabbits (similar weight) were randomly divided into5treatments (40replicates per treatment). The trial lasted7days for adaptation, and53days fortest, respectively. The results showed that, Dietary NDF levels had signmcant influences onaverage daily gain(ADG)and feed/gain(F/G)(P<0.05)and no signmcant influence on the dailyfeed intake (ADI)(P>0.05). Dietary NDF levels had significantly influenced fecal nitrogen(FN), digestible nitrogen (DN), retention nitrogen(RN),and DN/IN(P<0.05).The weight andarea of fur were significantly affected by dietary NDF levels (P<0.01). The dietary NDFlevels had significant influence on total VFA cotent(P<0.05). The acetic acid ratioincreased,propionic acid ratio and butyric acid ratio descended with the increase of dietaryNDF,but every treatment had no significant influence(P>0.05). The dietary NDF levels hadsignificant influence on the weight of caecum and relative weights of stomach, small intestineand caecum (P <0.05). The dietary NDF levels had no significant influence on the villiheight,crypt depth and V/C of duodenum(P>0.05),but the villi height and V/C of jejunum andileum were affected significantly by the dietary NDF levels(P <0.05). The dietary NDF levelshad significant influence on the content of SIgA of duodenum and caecum(P <0.05),thequantity of M cell in sacculus was affected significantly by the dietary NDF levels(P<0.05).In conclusion, the appropriate NDF concentration in the diet of weaner to3-month-old growing rex rabbit is30%.(2) Two hundred3-month-old rex rabbits (similar weight) were randomly divided into5treatments (40replicates per treatment). The trial lasted7days for adaptation, and53days fortest, respectively. The results showed that, The dietary NDF levels had no significantinfluence on average daily gain(ADG),feed/gain(F/G) and daily feed intake (ADI)(P>0.05). The nitrogen intake (IN), urinary nitrogen(UN),retention nitrogen(RNand DN/IN(P>0.05). The weight and of fur was significantly affectedby dietary NDF levels (P<0.01). The dietary NDF levels had significant influence on totalVFA cotent(P <0.05)and no significant influence on the ratio of acetic acid,propionic acidand butyric acid (P>0.05). The dietary NDF levels had affected the weight and relative weightof caecum (P <0.05). The villi height and V/C of jejunum and ileum were affectedsignificantly by the dietary NDF levels(P <0.05). The dietary NDF levels had no significantinfluence on the content of SIgA of duodenum, jejunum and ileum(P>0.05), but the contentof SIgA of caecum and the quantity of M cell in sacculus were significantly affected bydietary NDF levels (P<0.05). In conclusion, the appropriate NDF concentration in the dietof3to5-month old growing rex rabbit is28%～30%。

Related Dissertations

  1. Effect of High Level of Copper and Zinc on Growth Performance and Metabolism and Its Content Level in Serum and Deposit in Tissues of Weanling Piglet,S828.5
  2. Effects of Low-protein Diet on Production Performance and Feeding Environment of Piglet,S828.5
  3. Study on the Trophic Value of Blood Meal by Different Processes and the Effects of Supplements in Broiler Chicken,S831.5
  4. The Effect of Vitamin E and Vitamin C on Growth Performance, Non-specific Immune Response for Cobia, Rachycentron Canadum,S963.1
  5. Effects of Dietary Oil Sources on Growth Perfomance, Lipid Deposition and Blood Biochemical Index of Carassius Auratus Gibelio,S963.1
  6. Nutritional Evaluation and Feed Effects of Solidago Canadensis in Rex Rabbits,S829.1
  7. Studies on Fermentation of Unconventional Protein Feeds and Their Application in Broiler Diets,S831.5
  8. Effects of the Cyclic Starvation-Refeeding on Growth Performance, Body Composition, Digestive Enzymes and Antioxidant Enzymes of Megalobrama Amblycephala Yih and Cyprinus Carpio Var.Jian,S917.4
  9. Effects of Scutellaria Baicalensis and Lactic Acid Bacteria on Growth Performance and Microflora in Ileum and Caecum of Broilers,S831.5
  10. Ammonia-N Stress on Misgurnus Anguillicaudatus and Second Generation Population of Mass Selection,S966.4
  11. A Study of Chinese Environmental Control System and Performance,X321
  12. The Impact of Responsible Leadership on Business Growth Performance,F272.91
  13. Determination of Digestibility of Selected Protein Sources and Evaluation of Feed Formulation Based on Their Availability for Pacific White Shrimp, Litopenaeus Vannamei,S963
  14. Study on the Prebiotic Function of Konjac Mannanoligosaccharides on Pelteobagrus Fulvidraco,S963
  15. Effect of Bacillus Subtilis on Growth Performance and Intensive Aquaculture Environment of Cyprinus Carp,S965.116
  16. Studies of Plant Extracts and Artificial Aquatic Mat in Monopterus Albus Aquaculture,S966.4
  17. Research on Genetic Breeding of Macrobrachium Nipponense from Taihu Lake and Poyang Lake Populations,S966.12
  18. Study on Growth Performance and Economic of Fresh-wet Biological Feed,S828.5
  19. Effects of Different Types of Ligustrum Lucidum on Growth Performance、Antioxidant Status and Immunity in Broilers,S831.5
  20. Effect of Calcium Sources and Levels on Growth Performance and Meat Quality of Broilers,S831.5
  21. An Experimental Study on the Subchronic Toxicity of Melamine and or Cyanuric Acid to Rex Rabbit,S858.291

CLC: > Agricultural Sciences > Livestock, animal medicine,hunting,silkworm,bee > Livestock > Rabbit
© 2012 www.DissertationTopic.Net  Mobile