Enhancement of development of oviparous species by in ovo feeding of enteric modulators

An intestinal regulator and intestinal development technology, applied in animal feed, animal feed, additional food elements, etc., can solve the problems that animals have not been described

Inactive Publication Date: 2006-08-09
NORTH CAROLINA AGRICULTURAL AND TECHNICAL STATE UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the introduction of therapeutic substances in ovo to enhance gut development and overall growth in animals has not been described so far

Method used

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  • Enhancement of development of oviparous species by in ovo feeding of enteric modulators
  • Enhancement of development of oviparous species by in ovo feeding of enteric modulators
  • Enhancement of development of oviparous species by in ovo feeding of enteric modulators

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0057] Experimental method and material of embodiment 1-4:

[0058] In ovo feeding broiler chickens with gut regulator HMB

[0059] The broiler eggs being hatched are from a 39-40 week old commercial Ross flock and they have been incubated according to standard incubation procedures and conditions. On day 18 of incubation, eggs containing viable embryos were weighed and divided into 4 treatment groups of 100 eggs each. The average egg weight was 55 g, and these eggs were then divided into treatment groups based on similar weight frequency distributions. One of the 4 groups of in ovo feeding treatment solutions (1 ml per egg) was then injected into the amnion of 100 eggs per group using a 23-gauge needle. The 4 in ovo feeding treatments included: A) 20% dextrin + 3% maltose in 0.5% NaCl saline solution; B) 20% dextrin + 3% maltose + 0.1% Ca in 0.5% NaCl saline solution - HMB; C) non-injected control group; and D) 0.1% Ca-HMB in 0.5% NaCl saline solution. Ca-HMB was obta...

Embodiment 1

[0062] Effects of Intestinal Regulators on Body Weight of Broilers

[0063] Table 1 shows the results of the effect of the above in ovo treatment on body weight.

[0064] Experimental treatment

At hatching (1 day old)

10 days old

(g±SD, body weight of each broiler)

A (carbohydrate IO solution)

46.98±0.3 a (3.3％) 2

248.9±3.2 b (0.9％)

B (Carbohydrate + HMB IO solution)

46.94±0.2 a (3.2％)

254.5±2.4 a (3.2％)

C (control group without injection)

45.49±0.3 b (0％)

246.7±3.7 b (0％)

D(HMB IO solution)

46.5±0.3 a (2.2％)

249.7±3.9 b (1.2％)

[0065] 1 Each mean represents the mean of approximately 70 chicks per treatment group.

[0066] 2 Brackets indicate the percentage increase relative to the control group.

[0067] a，b Means with different letter superscripts in the same column are significantly different (P<0.05).

[0068] All 3 in ovo feeding treatments significantly (...

Embodiment 2

[0070] Effects of Intestinal Regulators on Breast Meat Weight of Broilers

[0071] In addition to the positive effect on body weight, in ovo feeding also significantly increased breast muscle mass relative to body weight (Table 2). At hatch, in ovo feeding HMB alone increased relative breast meat size (% of body weight) by 15.1% relative to the control treatment. Although in ovo feeding the carbohydrate solution only increased breast meat size at hatch by 3.6% relative to the control group, adding HMB to the carbohydrate in ovo solution increased this effect to 7.3%. By day 10, all in ovo-fed treatments significantly increased relative breast meat size compared to control treatments. At 10 days of age, there were no significant differences among the in ovo feeding treatments.

[0072] The economic value of broiler chickens is largely related to their breast meat production. Breast meat yield potential is established during the last stages of embryonic development and the ...

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Abstract

The development and growth of oviparous species such as birds is enhanced by in ovo administration of an enteric modulator such as HMB. The enteric modulator is administered into the amnion, where it is then orally ingested by the subject. The enteric modulator enhances the enteric development of the subject prior to hatch, and enhances the growth of the animal before and after hatch.

Description

[0001] related application [0002] This application claims priority to U.S. Patent Application Serial No. 10 / 609,741, filed June 30, 2003, which is a continuation-in-part of U.S. Application Serial No. 09 / 919,386, filed July 31, 2001 , US Application No. 09 / 919,386 claims priority to US Provisional Application No. 60 / 222,744, filed August 3, 2000. The disclosures of these applications are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates to methods of enhancing the development and growth of oviparous species such as birds, reptiles and fish by in ovo administration of nutrients and / or gut modulators. [0004] Abbreviation list [0005] HMB - methyl beta-hydroxy-beta-butyrate [0006] IO - In ovo feeding [0007] LAP - Leucine aminopeptidase [0008] mm - mm [0009] mOsm - milliosmoles [0010] P - P-value [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K47/00A01K45/00
CPCA01K45/007A23K1/1609A23K1/1826A23K1/182A23K1/1631A23K20/105A23K20/147A23K50/70A23K50/75
Inventor 泽哈瓦·尤尼彼得·菲尔基特
Owner NORTH CAROLINA AGRICULTURAL AND TECHNICAL STATE UNIVERSITY
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