I want to learn the effecs of the silage and hay on ruminal methane production. Furthermore, I want to learn the effects of these two forage sources on rumen parameters.
Dear Ali
Methane production in rumen depents most on rumen enviroment thant a particular feedstuff characteristic. you have to see in both silaje and hay its nutritive quality, also the used supplementation, animal management in term of food availabilty, etc aslo ruminat specie have influence. best regards,
Redimio
Dear Ali
Please, read in the following links, I hope will be useful for you:
http://www.nrcresearchpress.com/doi/abs/10.4141/cjas91-016
and
http://www.scielo.br/pdf/sa/v72n1/0103-9016-sa-72-1-0011.pdf
Best Regards
Hi
this link can help you
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5004155/
It depent to fermentation's condition. Due to higher starch content it will ferment much more propionate than other volatile fatty acids such as acetate. So, silage make lower concentrations of methan than hay.
Silage has less dry matter content hence less fermentable carbohydrates for microbial actions that will eventually produce the gas in question i.e. methane
Its depend on fermentation quality & rumen environment of the feeds whether silage or hay. Usually it was observed that silage prepared by good quality maize (cut at milk stage of grain filling) and feeding to animal having capacity to less methane production compared to legume hay. So, lots of parameters are involved with methane production in rumen. You can go through lots of review mentioned by Dr. Ali, Juma and Danial.
Yes, fermentation quality matters & of course the rumen environment. The quality of fermentation is a function of the quality of the fermentable carboydrates. "Good quality maize obviously will have reasonably quality carbohydrate at the point of cutting as noted by Nathu
This is related to NDF digested in the ration. As you know, there was a strong relationship between methane production and NDF digested. The results indicated that methane release with increasing NDF digested.So, the type of silage and hay effect of methane production.
The production of gas (methane) in hey is more than silage. Because most of the carbohydrate is fermented in the silo process and is out of reach of microorganisms and silage carbohydrates are not sufficient in the production phase.
I bit disagree with the opinion of Dr. Palangi, methane production in the rumen usually depends on digestibility of a particular feeds. Hay normally prepared from leguminous grasses and silage prepared from non-legumes grasses. according basic rule of ruminants nutrition , if the cattle fed good quality feed staff usually emit less methane compared high fibre based feed whether may be hay and/or silage. So, author can go through many review works published by many researchers all over world for consultation, e.g. American Journal of Dairy Science, Journal of Animal Science, AJAS and many others like Canadian Journal of Animal sciences.
The intended purpose of the questioner is the difference between the forage and its silage. And has no relation to the quality of the food.
The nutritional value of food and its digestibility varies with the asked question purpose.