Fishy smelling egg.

[Johnn]

When i read the title to this i couldnt help but laugh!

 

[eeagleyes]

I checked with Michigan State University' s veterinary college. They said that each breed of chicken genetically metabolizes fatty acids differently. Some breeds will have a slight fishy odor or taste to their eggs due to this unique way they break down these fatty acids. If the eggs are collected regularly (daily, more in high heat days) they should be fresh. The smell, or taste is harmless.

 

[jake82966]

I think it's the oyster shell

 

[eeagleyes]

I have not fed any oyster shell as of yet to these chickens of mine. Have not needed it.

 

[Messipaw]

I've read it's too much omega three that causes a fishy smell.

 

[Ugadano]

We had chickens years ago, kept them in the next neighbor's old henhouse across the fence and free ranged in our yard and the pasture. Every year during the growing season, we'd get a couple of hens laying fishy eggs. I mean picked up fresh-laid same-day, not even hot days, and bring them in to crack in the pan and the smell would nearly blow you away! We had to have 3 bowls out. One to crack into then pick up and smell of it. At one point I couldn't smell the fishy unless I forked the yolk and smelled of it that way, and that's not good if you wanted them fried sunnyside up. 2nd bowl on hand for if the first one received a stinky egg, because even the remaining moisture from the white of the first would taint the next one. At that point, 1st bowl became the dump bowl for 'fishy'. 2nd bowl would have to be thoroughly rinsed out if it got a fishy egg. 3rd bowl for putting 'safe' eggs in to scramble or for mixing in baked goods recipe. The fishy egg would ruin a cake or pancakes!

After the growing season ended, no more fishy eggs until next late spring. I thought there must be some bug in the henhouse litter that they were getting, but never found anything, and finally decided there must be some weed growing that they were eating. But all my hens free range in my large yard, and I would only have 2 or maybe 3 out of over a dozen hens with that fishy smell. If even one egg was fishy, it would ruin a dozen in the scramble pan. I peeled a hardboiled egg the other day and the white tasted fine but I couldn't eat the yolk due to the fish taste. I am not afraid of their safety, as I know my eggs are fresh, but I had customers in the past and I would warn them to crack in separate bowls and smell them. I would make them good next time if they got fishy eggs. But after a while it's embarrassing and customers drop off. At this point with my hens, none of my green shells have been fishy, only a brown, so I think it's my production reds, and when one went broody and stopped laying, we didn't get any more fishy for quite some time.

The fishy egg has no visible difference, no cloudy appearance, but in some you can smell it as soon as you crack the egg. In others, as I mentioned before, it would have no odor until I broke the yolk with a fork, and even a hint of fishy would ruin the scrambled dozen if it got in there without me noticing! I have eaten them before, forced myself with picante or something to mask the odor because I was so reluctant to waste anything, no problems with an intestinal nature, but I just can't do it again!

I am not feeding them onion or garlic, fishy smell occurred long before I bought oyster shell, which doesn't stink, and they ALL eat that. I feed milo and whole oats and they free range. My family has corn allergy which is why we don't feed that and why we wanted our own chickens. I used to feed wheat that was grown just down the road, but not with my latest bunch of chickens We went probably 6 years without our own chickens and have started back with them again, now we have our own small henhouse in our yard and the hens don't go across the fence. Whatever it is they are getting, it's in my yard.

 

[tjs19]

I checked with Michigan State University' s veterinary college. They said that each breed of chicken genetically metabolizes fatty acids differently. Some breeds will have a slight fishy odor or taste to their eggs due to this unique way they break down these fatty acids. If the eggs are collected regularly (daily, more in high heat days) they should be fresh. The smell, or taste is harmless.

We have one polish that has been consistently laying fishy smelling eggs. I was suspicious of the first couple but when I knew the eggs were fresh and tried them they tasted fine.

I eat them myself so they don't turn my little ones off of eggs. Every one I've had tasted just fine.

 

[Ugadano]

Apparently it's the brown eggshell layer breeds that have the mutation that cannot properly break down the omega oils from feed and plants to the final non-smelly step (which is not harmful at all, only smelly). Amaranth type plants are high in the omegas. My production reds and the barred rock girls lay brown eggs, so I may go back to white shell laying breeds since my yard and pasture is full of amaranth type plants. Pigweed, lamb's quarters, etc. Either that or isolate till I find the smelly-egg-laying individual and cull her, or just use hers for hatching broilers. I'm pretty sure the barred rocks lay a lighter brown shell and have not been smelly, as I finally got where I could almost predict which egg shape, shade of brown and surface texture was the smelly one.

Do yours have the same odor during the dormant season, or just during the growing season like mine?

 

[Glenda Heywoodo]

Glenda Heywood
NO OYSTER SHELL does not effect the smell or the taste of an egg.
Here is some information

.
Soy Free Diets For Poultry
James Hermes, OSU Extension Poultry Specialist
Publish Date: Summer 2010
VolNo: Vol. V No. 3
In recent years, there has been interest by small scale poultry producers to not feed soybean meal to their chickens. The reasoning behind this trend varies but most producers have health concerns regarding soy for both their birds and humans eating poultry products, meat and eggs, from birds fed soy. In addition, there is concern that most soy produced in the US is a “genetically modified organism” (GMO); most soy has been genetically manipulated so that it is resistant to Roundup, a widely used herbicide. And finally, many are concerned that soy is not locally grown, most is grown in the Midwest and transported to the Pacific Northwest by rail car. This is of particular concern for those who consider themselves “localvores”, individual that prefer to only consume products produced close to home.
Why is soybean meal a major ingredient in poultry feed (about 30%)? For decades, soy has been known to be an excellent feed ingredient for poultry and other livestock; this is why it will be produced at levels expected to exceed 3.5 billion bushels in 2010. It is a high protein feedstuff (>45% crude protein) and it contains high levels of linoleic acid, an essential nutrient that is required in animal diets. Since it is so useful and available, the poultry industry has little interest in finding alternatives. Therefore there has not been a lot of work on other ingredients that may be adequate substitutes for soy. The question then arises, what is an adequate substitute.
First, an adequate substitute must have an adequate supply, have the proper nutrient levels and be affordable. So, what is available in the Pacific Northwest that is an adequate soy substitute?
In the past, animal products such as, fish meal, meat meal, meat and bone meal, blood meal, and poultry by-product meal have been used successfully in poultry diets. They are all high in protein and other nutrients; however, the supply has been reduced in recent years because feed mills that make feed for ruminant animals, cattle and sheep, can no longer use these products due to the potential of “Mad-Cow disease. Poultry are unaffected by this problem. Other issues with animal products include food safety and the potential of receiving contaminated product. And finally, organic production doesn’t allow the use of animal products in diets.
Cereal Grains
Cereal grains are typically low in protein, between 7% and 12%, and generally high in fiber. The energy level (starch) varies from very low (oats) to quite high (corn). Some cereal grains such as wheat and barley contain compounds that are not well digested by poultry and may need supplemental enzymes added to the feed to aid digestion if fed in levels above 10 or 20% in the diet.
Legume grains
This group includes the dry beans, peas, and lentils. Since soy is a legume these would appear to be an obvious choice. However, compounds including, tannins, oligosaccharides, and enzyme inhibitors that are found at high levels in most of these grains severely affect growth in poultry, especially in beans, with peas providing adequate growth at 30% in the diet or less. Since soy is processed with heat, these compounds are virtually eliminated as a problem. So with some processing, beans and peas may become a useable ingredient, more work is needed.
Other
Canola and Camilina, are relativelyPoultry new as a poultry feed ingredient but show some promise, however they are not without problems too. They are related to mustard and cabbage and as such they include compounds that can cause problems when fed to poultry. Canola, when fed at amount higher that about 10% in the diet, cause eggs produced by many brown egg layers to smell and taste fishy, and Camilina has a similar property and is only approved to be fed to broiler chickens as a level of less that 10%.
Conclusion
Poultry feeding is heavily dependent on soy as an ingredient. It will take some time to identify adequate substitutes that are locally produced and will support poultry growth and egg production. Unlike ruminants, which can thrive on forages, poultry require a balanced diet. Therefore, poultry diets must contain proper ingredients at the proper levels for productive chickens.
.

Soy Free Diets For Poultry | Small Farms Programs
n recent years, there has been interest by small scale poultry producers to not feed soybean meal to their chickens. The reasoning behind this trend varies but most producers have health concerns regarding soy for both their birds and humans eating poultry products, meat and eggs, from birds fed soy...
smallfarms.oregonstate.edu



Comments


Glenda Heywood Most inormative please read: In the past, animal products such as, fish meal, meat meal, meat and bone meal, blood meal, and poultry by-product meal have been used successfully in poultry diets. They are all high in protein and other nutrients; however...See More
Like · Reply · 3 hrs

Glenda Heywood Canola, when fed at amount higher that about 10% in the diet, cause eggs produced by many brown egg layers to smell and taste fishy, and Camilina has a similar property and is only approved to be fed to broiler chickens as a level of less that 10%.
Like · Reply · 3 hrs

 

[3riverschick]

Detect and eliminate ‘fish taint’
http://www.wattagnet.com/articles/5876-detect-and-eliminate-fish-taint

Genetic and dietary interactions of fishy-egg taint in brown-shelled laying hens
Thesis (PDF Available) · January 2008 
https://www.researchgate.net/public..._fishy-egg_taint_in_brown-shelled_laying_hens
Genomics. 2005 Aug;86(2):225-32.

Fishy taint in chicken eggs is associated with a substitution within a conserved motif of the FMO3 gene.
Honkatukia M1, Reese K, Preisinger R, Tuiskula-Haavisto M, Weigend S, Roito J, Mäki-Tanila A, Vilkki J.
https://www.ncbi.nlm.nih.gov/pubmed/15916878
Poult Sci. 2009 Apr;88(4):714-21. doi: 10.3382/ps.2008-00430.

Fishy-egg tainting is recessively inherited when brown-shelled layers are fed canola meal.
Ward AK1, Classen HL, Buchanan FC.
https://www.ncbi.nlm.nih.gov/pubmed/19276413


its either something they ate or its genetic. articles on both possibilities on the Net.
Best,
Karen