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第二章 饲料营养与供应 PowerPoint PPT Presentation


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第二章 饲料营养与供应. 第一节 动物营养基本知识. 1. 饲料与畜体组成 2. 动物对饲料消化吸收的特点 3. 能量在动物体内的转化规律. 动、植物体的组成. 一、组成动、植物体的化学元素 ( 一 ) 动、植物体的化学元素比较 60 种,基本相同,数量略有差异; C 、 H 、 O 、 N 含量最多, DM 的 95% 以上;有机形态 。 C O H N 矿物质 饲料(植物) 45 42 6.5 1.5 5.0

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第二章 饲料营养与供应

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3701051


3701051

  • 1.

  • 2.

  • 3.


3701051

()

60CHONDM95%

C O H N

45 42 6.5 1.5 5.0

63 13.8 9.4 5.0 8.8


3701051

()

1.

,,,

2.CaPKNaCIMgSFeZn

CuMnISeCo

3.

  • :0.01%, CaPKNaCIMgS;

  • :0.01%, FeZnCuMnISe

    CoMoCr


3701051

(water)

()crude ash

(Dry matter) (crude protein)

:

(ether extract)

(carbohydrate)

: 80%

(): 1%

(vitamin)

(Ribonucleic Acid)


3701051

()()

,,

,,


3701051

()

1.

;

;Glc

NPN;

AA

;

,

2.:

1H2O:

2:

3:CFNFECPEE


3701051


3701051


3701051

.

.

.


3701051

1.

---

2.


3701051

:

:


3701051


3701051


3701051


3701051


3701051


3701051

()

42


3701051

()

30


3701051

3.


3701051

1


3701051

CPNFEEE

CPNFEEEMCP

CPNFEEE

2


3701051

:

1

2


3701051

NFECPCF

CF

CP

3


3701051

1

NaHCO3pH6-7

38-42


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Fiber Mat

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Gas Pocket

Rumen

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Fluid Fraction

Esophagus

  • Resident Microbial Population

    • BacteriaFungi

    • ProtozoaViruses

Liver

S.I.

.


3701051

1011/ml

106/ml

>

106/ml

2


3701051

Bacteria

Protozoa

Fungi


3701051

Plant cell wall

Rhizoids


3701051

(GE)

B


3701051

70-85%DM50%CFvolatile fatty acid, VFA60-70%

3:


3701051

4


3701051

VFACO2

(absorption):

1

(1)

(2)

VFACO2CH4


3701051

(3)

VB12


3701051

2

1


3701051

2AA

3


3701051


3701051

UE

AM

FE)

(GE)

(DE)

(ME)

HI)

NE)

NEp

(NEm)


3701051

18.87MJ/kg18.83MJ/kg

IGE=

MJ/kg


3701051

DE

=-

FE

FME


3701051

ADE

(TDE)FEFME


3701051

40~50%

20~30%

10%

60%

40% 20%


3701051

ME

AM

= - - -

UE

UME

5~8%


3701051

AM

3-10%CHO

CHO

8-10%

6-8%


3701051

-

-

-

-

-

IGE

(

FE

FME

)

(

UE

UME

)

AM

=

TME

AMEn


3701051

NE

1HI

HF(HNM)

1HF5-10%

2


3701051

2NE

NE = GE HI


3701051

%) =

100%

1.

17%12%7%15%4%9%


3701051

2.

3.


3701051

4

=/


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