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In ovo feeding; a promising approach?

It is known that the timing and form of nutrients supplied post-hatch is critical for development of gastrointestinal (GI) tract. It has also been shown that early access to feed enhances growth of the intestinal tract.

It is known that the timing and form of nutrients supplied post-hatch is critical for development of gastrointestinal (GI) tract. It has also been shown that early access to feed enhances growth of the intestinal tract.
It should be reasonable to assume that providing feed to the developing embryo (into amniotic fluid) could be considered as an early access to exogenous nutrients which may enhance GI tract development and affect performance of hatching chicks.
The added nutrients are subsequently exposed to the tissues of GI tract after the embryo naturally consumes the amniotic fluid prior to piping and are then subjected to digestion and absorption by the embryonic intestine.
Studies have demonstrated that the administration of exogenous nutrients into the amnion at 17.5 day of incubation enhanced intestinal development by increasing the size of the villi and the intestinal digestive capacity. This probably leads to higher body weight in in ovo fed chicks.
• How practical do you think this approach is for the poultry industry on a global basis?
• This technology comes at a cost.
• Do you think that better performance of injected day-old chicks can possibly compensate the cost of this technique?
• What are the potential limiting factors which might affect widespread use of this technology?
• Let's share our opinions/experiences here.


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    Professor Youssef Attia

    The practical of this approach for the poultry industry on a global basis will depends on the their results in the filed, development of easy instruments for the injection, education to mimic losses of eggs at this stage, the most important may be if the this approach could be developed to improve immunity at this stage. Cost-benefit analyses should be done to compare the cost against the benefits. Improving immunity may be a potential factor, besides improve gut ecology, and early pancreatic functions.

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    Mahdi Ebrahimi

    this technology is very expensive. using the higH quality food after hatching is more better than in ovov feeding. i am not agree with injecting day old chicken and using liquid feed after hatching is more friendly and better for animal. i think less injection for all animal and respect to them is accordant to animal right.

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    dve. ng.

    The global pratical application is my main concern.If tested, how reproduceable and how would the technology be affordable.In-ovo applications are burdensome on chicks already. Would there not be incompactibility even if sites of action are different.We may have to look into these. Meanwhile,the 'super benefits' can not be ignored.

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    Dr.R. Sureshkumar

    It is difficult to implement when customers are having more number of satellite hatcheries at different parts of the country.The cost is the main criteria and the successs of this technique is based on Cost Benefit Ratio. If Return on investment can be shown what could be the minimum size of the chicks produced from hatchery?.

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    Simon M Shane

    What matters is whether the process, using mechanised in- ovo equipment actually delivers improved weight/yield/marketable mass through the plant!So far it has not. We do not market 7-day broilers and poults and we do not sell intestines. One of the equipment manufacturers funded extensive research which led nowhere.
    Simon Shane

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    K B Bohara ,from valley poultry, Nepal

    After the invention of in-ovovaccination technoloy,the idea of what about In-Ovo feeding came into scientific mind. experimental studies revealed very promising results.Global applicability of the technology will depend on:
    Benefits against costs.
    User friendly technology.
    Impect not only on growth but also on natural defence mechnism of the bird,
    Safety ofPouring/injecting exoginous materials into chick still inside egg(animal welfare).

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    Dr.Shawgi Osman

    The technique will touch two main points ,technical point of application methods which practically can not be done 100% on the field.and ecnomical point covering the out come of the technique considering the cost of nutrients ,and application.
    Bi-technique norshing &immunizing may be of potential.

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    Dr.Adil Osman/Veternarian

    Is difficult to be applicable,Cost benefit analysis is required.There is more easiest ways to reach the goals instead of this procedure.

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    Dr.Borhan Elmeki

    Not so long in ovo vaccination had been an onerus task , today it becomes a reality and an easy business but it is not hetherto somthing that is generalized .By the same token in ovo feeding may be tomorrow a reality but cost-effectiveness analysis should precede its introduction !!!

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    Alberto Torres

    The volume is another issue to consider. In-ovo vaccination entiles microliters whereas in-ovo feeding entiles milliliters. Equipment has to be adjusted to handle such difference in volume and the time to process the same number of eggs might increase.
    Some breeds are already growing at such fast pace that even the slightest boost in growth rate may increase the incidence of leg problems.

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