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Ask
an Expert
Nutrient Mangement Questions and Answers
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Question:
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we handle dairy manure as liquid (slurry)- what proportion of N-P-K is in the solid vs. liquid of the slurry? Is there an eocnomical way to remove up to 90% of solids? |
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Answer:
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Fred,
Cornell has a good paper on comparing odor control treatment methods on NE dairy farms. He goes through various systems, initial investment costs, operating costs/year, and nutrient flow for manure as produced, solids, liquids, and nutrients used in land application. If you would be interested in a copy, please email me vishler@psu.edu and I can either fax it or snail mail it to you. If this does not answer your question, let me know and I can put you in contact with one of our manure specialists.
Virginia Ishler |
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Question:
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Having trouble in a dairy operation: calves 0-2months old are not growing well; they are getting a daily limited amount of water, 3 liters of whole milk and five (5) kilos or eleven pounds of starter before being weaned at 8 weeks; these calves are housed outside in hutches; area is in southwestern Quebec; are there any guidelines on concentrate feeding for calves of this age? what amount would be considered sufficient to provide for good rumen papillae development without any health risks for the calf (rumenitis, acidosis...etc...)? Your help would be greatly appreciated.
TIA
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Answer:
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Larry,
Could you expand on how you define "not growing well"? How much colostrum and how soon after a calf is born? Are you checking colostrum for quality? Are calves getting scours and if so, how many days after they are born? What is the nutrient specs (i.e. protein) or formula for the calf starter? Have calves been checked for coccidiosis? |
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Question:
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balance between RDP degradable in rumen and energy |
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Answer:
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Could you be more specific in what you are asking? It would help me know if there is a particular situation you are dealing with and what your current level of RDP and energy values are. It would be helpful to know what the nonstructural carbohydrate levels or starch levels that you deal with. |
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I am a student at the University of Florida. I have an assignment to find where in Pennsylvania on Bovine farms that they are being fed chocolate balls, and Frosted Mini-Wheats. If you have any information on the Farm name, county, or any other non conventional products being fed please let me know. Thank you, Audra Ricks Junior College of Agriculture and Life Science.(CALS) |
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Answer:
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I am giving you some resources that might help locate the farms you are looking for. At the following URL - http://www.das.psu.edu/dcn/CATFORG/index.html#sources
select forage and feed sources. The first pub is Sources of food processing wastes... Look under bakery products and chocolate for contacts. The may be able to help. Another idea if this does not pan out is to contact some of the cooperative extension offices http://www.extension.psu.edu/extmap.html
Counties where byproducts would be used heavily would be the Capital region and Southeast. I do not know of any farms that are feeding the specific byproducts you mentioned, but we do use byproducts that incorporate several combinations of cookies, cakes, and potatoe chips etc. I hope this helps. |
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Question:
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Holsteins showing IBR symptoms, heavy mucous from nostrils, runny eyes, milk loss, appetite very good no suppression there, diets are top quality for energy and protein. Local vets sampled blood and bulk tank milk ....low IBR reading.cows not having high temps., but characteristically the high respiration rate particularly in the post rib area where pronounced rapid movements are seen.This we believe is confusing the issue on farms where even vets are saying IBR , tests don't confirm , so Fluke, Intest. worms etc are examined. to us this looks like a new "IBR" type symptom, 45 litre(10galloan) cows after 2-3wks. fall to 29 litre (6.5g.)daily yields.
I read your section in HOARDS Oct 25th 2002.
Look forward to your comments, please return if you require add. info.
All the best from Wales, UK,
Alan Jenkins
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Answer:
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I just received your email, but I noticed it was dated November. Did someone respond back to you on this? If not, let me know and I can forward this to one of our vets. |
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What diet would you recommend for reactive hypo
glycemia? Please be specific. |
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Before I can give you a specific answer, I want to double check that you are asking about ketosis vs subclinical ketosis.
I would need to know when is it occurring, what kind of diet you are feeding, and the body condition of the cows before I could give you a response. |
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Where can I take soil samples of my lawn for testing of PH, nitrogen, disease, weeds, etc. and recommendations for treatment?
Thanks, Ken McD. |
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Answer:
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The following web site lists what is available from Penn State http://www.aasl.psu.edu/SSFT.HTM
in the way of soil testing. For weeds and diseases, you probably want to check the horticulture site http://hortweb.cas.psu.edu/ Also, the Department of Crop and Soil Sciences has an extensive turfgrass website at: http://www.agronomy.psu.edu/Extension/Turf/TurfExt.html
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What are the regulations in the State of Maine in becoming a nutritionist consultant and can you use a home study of certification instead of college to practice it |
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Answer:
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I don't believe there is any formal certification in State's for becoming a nutritional consultant for livestock. An organization, ARPAS was developed to help weed out people who are qualified from those that have no experience or formal education. Their web site is http://www.arpas.org/ I strongly suggest you check this web site. A good majority of feed industry employees are going through the process of becoming ARPAS certified to give them more credibility. Even PhD folks are getting ARPAS certified. |
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When regulations on air quality are in effect will university research farms also come under similar jurisdictions? IE, if research is on going about various pollutants it is possible emmissions will be higher than allowed. |
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I suspect the university could get special dispensation, similar to what happens now with the use of ionophores and in the past, BST. |
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I am professor of an animal nutrition course and require some address where I can find photos of deficiencies of minerals and vitamins. I need them for didactic purposes. Could somebody send some photos to me or indicate some Internet address to me? |
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Answer:
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Gilda,
I am not aware of any internet site where they show pictures of mineral and vitamin deficiencies. There are text books, which contain some pictures. A book titled Minerals in animal and human nutrition and vitamins in animal nutrition. Lee Russell McDowell, University of Florida. Academic Press, Inc. 1250 Sixth Ave San Diego CA 92101. |
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