[Music] we have a lot of questions also on the uh requirements of getting us the animal side and i think it will be uh the topic for the for the next part so i just remind you there is a poll now for the second part of the debate so you can uh answer to the questions just to follow how you get into this uh this debate so the last part is now the key questions the benefits and the consequence of a need to assess performance to assess the effects of additives and so on to develop sustainability and so on so we've got a lot of questions and just before i said one of the key questions on the system from different people from different parts of the world is the animal part so for instance do you think it is necessary studies about any requirements maintenance there is some people knowing very well your work jean asking the question about uh what about any for piglet's points let's say uh an emote from post winning to 50 20 kilo uh i can just show the question from raphael here he progressed in determining any for piglets let's say animal from winnie to uh 15 20 kilo and uh that's a question and the same way i've got a question from gestation and the rapper of themselves for example oh yes i think the the literature on these aspects of energy values according to body weight to stages of production also and so on uh is the command it's more documented in pigs probably than in poetry i think uh uh for instance i i just uh if i will look at the slime number 20 i have probably shown hundreds of times in the overtime slide number 22 sorry so on that slide i clearly indicate that the energy directivity in pigs is quite different in growing pigs and in other pigs in a way that when you have very fibrous diets and very fabulous ingredients you have a big difference between other pigs and growing pigs so the question there was about piglets i think piglets are probably very close to growing pig and lactating cells i think that was also included in the question uh are probably rather close to other pigs so uh in the principle or in theory there should be as much [Music] energy or as many energy values of your stages of production in the case of pigs but you have to be very practical at the end i think you cannot provide an ingredient i mean today maybe in 10 years time i i can i think that that should be a big progress and a good progress for the future but nowadays i think you have to split between uh at least in the case of pigs between two major stages of production so uh in the case of riders uh i would say that or poultry i would say that that would be the same i think the slide number i would say the slime number let's have a look uh 23 the slide number 23 indicates that the energy directivity on the main subusability here uh is a bit different between the roosters uh broilers and laying heads so the difference is uh not that big between the two main stages of production broilers and laying in but it is significant so that means that the enemy values uh in brighton should be attributed to any values in lanes should be a little bit higher than employers i mean uh roosters they are not raised for production but they are a good mother anyway but what we should be careful is that many uh enemy values have been obtained in roosters so and that means that roosters uh represent maybe some oversee overestimation of the actual any values or fits when fed to broilers and layers but at the end afterwards when you talk about net energy clearly net energy is calculated from an equation so in the case of pigs we showed that the net energy equation is applicable at any stage of production including the including adult cells and including pigs varying body weight between 50 and 150 kilo body weight so you can use the same equation in the in the prediction of net energy but you have to use different predictors for the entire equation in terms of the content which we will be different between sounds transients and growing peaks and that should be also the same for in the poetry field but that is not yet fully documented okay you want to add something yes i just want to to complete the answer of sean and to answer to rafa rafael the the question was also based on on requirement and and i pointed out that for requirement you you still have to take the requirement that you have in in me and apply a coefficient so 71 for four peaks to to get the requirement for for for pigs at any stage