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สัมมนาสัตว์ปีก PowerPoint PPT Presentation


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สัมมนาสัตว์ปีก. ผลกระทบของระดับวิตามิน A ในอาหารต่อภูมิคุ้มกัน โรคนิวคาสเซิลและการให้ผลผลิตในไก่ไข่. โดย นายไกรสร เทศสุวรรณ์ รหัส 45103404 สาขาสัตวศาสตร์ (สัตว์ปีก) อาจารย์ที่ปรึกษาสัมมนา ผศ.ดร. มานิตย์ เทวรักษ์พิทักษ์. บทนำ.

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สัมมนาสัตว์ปีก

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A

45103404

()

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A A A Newcastle Disease Virus (NDV) A


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Vitamin A

(Structure) Precursor Carotene, Vitamin A alcohol -

A


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A

1.

2.

3. A (Mucous membrane)

4. A

5.

6.

7. Cerebrospinal fluid


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(Deficiency signs)

A 2


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A


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(Toxicity)

50-500 A 1,000,000-1,500,000 IU/kg A keratin Lipoprotein membrane


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NewcastleDisease

Newcastle Disease Virus Paramyxovirus 1Paramyxoviridae 100 % species (domestic chicken) (turkey) (pigeons) (parrot) (duck) (geese) (pheasant) (quail) (guinea) (canaries)


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Klasing (1998)

7 4 A, D E receptor


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A Heat stressed Lin et al. (2002)

The laying performance of hens

abMeans with different superscripts in the same column differed significantly (P<0.05)


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The effects of supplemental vitamin A levels on antibody titers of Newcastle disease virus (log2)


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2 A 4 3,000, 6,000, 9,000 12,000 IU/kg Newcastle T cell (31.50C) 15 NDV A 6,000 9,000 IU/kg Treatment 1 A NDV -naphthyl acetate esterase A NDV ANAE (-naphthyl acetate esterase) Treatment 2


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A Coskun et al. (1998)

2 A 4 (0, 4,000, 12,000 24,000 IU/kg) A


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Results of analyses of the performance parameters of experimental groups1

abMean within rows with on common superscript differ significantly (P<0.05)

1Data are means of six replicates of 36 hens each


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Serum vitamin A levels of experimental group

a-cMeans within rows with no common superscript differ significantly (P<0.05)


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Serum antibody titers at different phases of the first experiment

a-cMeans within rows with no common superscript differ significantly (P<0.05)


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A A NDV T cell A A Tcell


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