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Title: | The effect of dietary protein and energy on intestinal MUC-2 expression and broiler chick performance for five weeks were evaluated. One hundred thirty chicks were randomly allocated to four dietary treatments viz. A [23% Crude protein(CP);2808 ME kcal/Kg], B (23% CP; 3005 ME kcal/Kg), C (21% CP; 2801 ME kcal/Kg) and D (21% Crude Protein; 2801 ME kcal/Kg), Diet C being the regulrar broiler diet, was taken as control. Body weights at 5-week, feed intake, and FCR (0–5 weeks) were recorded. mRNA expressions of MUC2 and β-actin genes in intestinal mucosa were quantified at the age of first, third and fifth week by real time PCR, using β-actin gene as a housekeeping. The mean body weight in the diet A, B and D were significantly higher as compared to diet C at the age of third weeks. The transcription level of mucin gene was found to be modified by dietary protein and energy levels, and age of the bird. Mucin expression in duodenum was higher in all treatment groups (A, B and D) compared to control diet (C) at early age but reduced as the age progressed. The expression of mucin gene was highest in group A at first week and in group B at third week. Significant down regulation in the expression levels were noted at 5th week of age in all treatment groups. It can be concluded that manipulating dietary constituents, leads to alter the performance as well as mucin gene expression in naked neck broilers. |
Other Titles: | Not Available |
Authors: | Mir Nasir Akbar, Deo Chandra*, Mandal A.B., Tyagi Praveen K., Rashid Azhar, Sharma Divya. |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR CARI |
Published/ Complete Date: | 2013-01-01 |
Project Code: | Not Available |
Keywords: | Broilers, dietary zinc, vitamin A, growth, carcass yield, immune response |
Publisher: | Indian Journal of Poultry Science |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | An experiment was undertaken to evaluate the response of broiler chicken to varying dietary levels of vitamin A and Zinc on the growth, immune response and carcass yield. A six weeks (0–6 weeks of age) feeding trial was conducted as per 3 x 4 factorial design involving three Zn levels (40,60 and 80 mg/kg) each with four vitamin A levels (1500, 3000, 6000 and 10,000IU/kg diet). Each of such test diet was offered as mash ad lib to four replicated groups of 8 chicks each. Significantly (P<0.01) higher body weight gain(BWG) was observed at 6000 IU/kg vitamin A than those observed at other dietary levels of vitamin A during all growth phases. The feed intake (FI) during 0–3 wk differed significantly (P<0.05) being higher at 40 and 80 mg Zn/kg diet than that recorded at 60 mg Zn/kg diet. The FI during 4–6 and 0–6 wks remained statistically similar either main effect or due to interaction effect between Zn and vitamin A. Significantly(P<0.01) lower and better FCR was observed at 6000 IU/kg vitamin A than those recorded at other dietary levels of vitamin A during 4–6 and 0–6 wk of age. The humoral (HA titer to sheep red blood cells- SRBC) was significantly (P<0.05) higher at 6000 and 3000 IU/kg vitamin A than those observed at other dietary vitamin A levels in the diets. Significantly (P<0.05) higher thymus weights was noticed at 60 and 80 mg Zn/kg diet than 40 mg Zn/kg diet. The various carcass quality traits and organ weights were not affected by different dietary treatments except percent shrinkage loss was increased linearly as increasing dietary Zn levels. The percent shrinkage loss was significantly (P<0.05) higher at 3000 and 6000 IU/kg vitamin A than those recorded at other dietary vitamin A levels. Based on the results it was concluded thata dietary level of 40 mg Zn/kg and Supplemental vitamin A 6000 IU/kg diet was found adequate to obtain optimum growth performance and carcass yield. However, better immune response was realized on dietary levels of Zn 60mg/kg and 3000 IU/kg vitamin A. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Indian Journal of Poultry Science |
NAAS Rating: | 5.85 |
Volume No.: | 48 |
Page Number: | 291-296 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/16392 |
Appears in Collections: | AS-CARI-Publication |
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