What is  inbreeding? How will it affect my livestock?  
  Inbreeding is breeding between  close relatives. If practiced repeatedly, it often leads to a reduction in  genetic diversity, and the increased gene expression of negative recessive  traits, resulting in inbreeding depression. This may result in inbred  individuals exhibiting reduced health and fitness and lower levels of  fertility. Livestock breeders often practice inbreeding to "fix"  desirable characteristics within a population. However, they must then cull  unfit offspring, especially when trying to establish the new and desirable  trait in their stock.  
         I have heard that a commercial or purebred  Sire should not be too heavy to breed cows and heifers. Not too heavy not too  weak or thin. Then, what is the Ideal weight for bulls to breed regardless if  they are show bulls or not?  
   Prefer bulls with a body condition score  around 6. A mature bull with body condition score of 6 would probably weigh  between 1700 and 2100 lbs. For heifers the smaller bull would be better.  
        Pregnant cow? Details on  "bumping" technique.  
          Once your cow is further along  than 41/2, 5 month, you can generally see a triangle, a sunken in place on her  right flank. When the fetus becomes large enough to fall over the pelvic rim  and into the body cavity it sags the attaching muscles down and creates this  sign. One day flat cow, next day great sunken-in place. In chute: With both  hands flat and fingers spread wide out, place firmly against the right side of  cow below this place on belly and push quickly and fairly hard in, and try to  hold that position and feel. The little bulk of the calf within will swing back  and 'bump' into You. Also, watch her right side when she drinks water. Often  this will make the calf active and you can see the movement. As she trots away  from you watch for the muscle attachment at the sides of her tail pull in  response to the bobbing weight of a calf.  
         How many cows can you run with a bull?  
          It depends on the age of the  Bull and the terrain of the land the cows are he is expected to breed. A  yearling bull usually can handle around 20 cows in average conditions. A 2  year-old or older can handle around forty cows. Rough ground or when the cows  are spread out can cut these numbers by half.  
        The  Fat & SNF content of the milk (yielded by a farmer) is not up to the  standard. How can the quality of milk be improved ? 
          Natural and man -made factors  affect the Fat & SNF content of milk. Factors due to genetic inheritance of  the animal cannot be rectified. Feeds and feeding can influence the Fat &  SNF content of milk. For Technical advice, the Dairy Extension Officer of the  area may be contacted. 
        We have  been observing a 4-day-old calf whose cord has dried, but the area is protruding.  Would this be considered a navel hernia, and is this something that will go  away as the calf grows? Or is this something that a vet should address?  
          Could be, maybe not, I have a 4  month old heifer that looks like a Brahma in the naval area, whenever the vet  stops by he checks her out and just shakes his head, not a hernia, just a  floppy naval area.  
        What  is the proper way to tube feed a calf?  
          Have someone hold the bottle so  contents do not pour out or into the calf until the tube is set. I assume you  have an esophageal feeder? It Must have the little bulb on the end of the tube  or you will likely put the tube in the lungs. Now. straddle the calf and open  its mouth wide enough to get the tube in the mouth and guide it to the back of  the throat gently, then pushing with a slight upward motion feel it pop past  the vocal cords. It should easily go in the calf about a foot. You can feel the  bulge of the bulb through the fur on his neck. I prefer a flexible tube but  many of the ones available are rigid so it is a little more uncomfortable on  the calf. When you are satisfied that it is in the esophagus, firmly hold the  tube in his mouth and let your partner hold the jug up to allow the milk to  flow in by gravity. Then slowly pull the tube out and let a little milk end up  on his tongue to help activate his senses. One to two liters is plenty for the  first feed.  
        How do I  care for a newborn calf?  
          Nature usually  runs its course and everything goes fine with newborn calves. But there are  several things that a rancher needs to check for, and several things you can do  to make sure that your calf gets off to a good start. In order to survive, your  calf absolutely MUST get a good dose of colostrum. Colostrum is the first milk  from its momma and is rich in nutrients it needs for the calf to survive. Your  primary concern when you first spot your newborn calf is to make sure that the  calf gets up and nurses from the momma. If there is some problem preventing the  calf from nursing, you either need to fix the problem or give the calf an  alternative colostrum (such as frozen colostrum or dry-mix colostrum).  
        I have a  7 month old steer calf losing his hair around his front shoulders and head. How  can I tell whether this is lice or if it is ringworm?  
          If it's lice you should notice  the calf rubbing his head and body against anything that's standing around. If  you can get close enough to him you could pull out some hair and if you look at  it closely you might even see the lice crawling around in the hair. The other  cattle are more than likely already infected too so you have to treat the whole  herd. Any farm supply store has products for treating lice. I use Synergized  Delice and dilute it with fly spray and use a garden sprayer to spray it over  the animals. You can spray the whole animal but the lice seem to concentrate  from the shoulders forward and back in the tail head area. Delice is actually a  pour on but it's much faster to just spray it on than to run the animals  through a chute and pour it on. I tried spraying it undiluted but it's too  thick to get it through my sprayer. If anybody is wondering the garden sprayer  is only used for spraying cattle. Cattle will lose their hair from ringworm too  but that would leave a scaled appearance to the hide.  
        What is  Brucellosis?  
          Here is an exerpt from UNEB on  brucellosis. "Brucellosis (contagious abortion, Bangs disease). Although  federal and state regulations have helped to control this disease, brucellosis  is still a threat. Brucellosis is caused by the bacterium Brucella abortus and  it is spread via infected placentas, vaginal discharges and aborted fetuses.  Following the ingestion of B. abortus, susceptible cows or heifers may have  abortions, retained placentas, weak calves or infertility problems. Milk from  an infected cow also may harbor B. abortus. The infected milk creates a public  health problem because B. abortus causes brucellosis ("undulant  fever") in humans.  
        What  are scours?  
        Scours is diarrhea in calves  that can be either viral or bacterial in nature. It can be life threatening if  not dealt with immediately. It can also be transmitted to humans if the proper  precautions aren't followed.  
        What is  the cause of mastitis? What are the clinical signs for it? And how can it be  treated?  
          Mastitis occurs most frequently  when you have a heavy milking cow and a calf that is not eating enough. The  down side of cows that produce lots of milk is they are more likely to get  mastitis and they are harder to keep through the winter. The up side is they  raise the biggest calves. So you have to maintain a balance. More is not necessarily  better. The factors mentioned by lisa are also possibilities.  
        There a number of causes: stress  infection, stepping on the bag, etc. One of the more prominent signs would be  swelling in the udder. We treat our dairy cattle with antibiotics usually up  the quarter that is infected, but if you don't have a good diagnosis as to what  strain of bacteria, it might not be easy to find the right antibiotic. Maybe  you could get a sample run to see then you would know what to treat with.  
        What is  vibriosis?  
          Vibriosis is a nasty contagious,  sexually transmitted disease in cattle, which you can protect against by  vaccination. Periods of infertility, early abortions and slow return to heat,  continuing services without conception, strung out calving. Cows can be  carriers for long periods of time, and the bull spreads it.  
        What can  I do to prevent my cow from bloating? She bloats every time she eats feed? 
          There are two temporary measures  that will help alleviate the problem but it won't cure it. One is to get some  mineral oil (about a quart or two) down her with a coke bottle or a tube (but  it isn't a good idea if you don't know what you are doing with the tube), the  other thing that works is Terramycin Crumbles (get it at your cattle supplies  store) Mix it with her feed. There is a more permanent solution you can try  & that is Pro-bios. It will put the bacteria back in the stomach so she can  utilize her feed better. If she continues to bloat I would recommend a vet, or  if you have already had one out you probably should consider selling her. There  is also a bloat medicine you can buy but I have no idea what the name is ( ask  at your store.)Hope this helps.  
        Is the tendency  for a cow to have a retained placenta somehow related to genetics and/or lack  of proper nutrients?  
        Lack of proper nutrition, our  vet implicated lack of selenium. We made sure selenium was in our mineral mix  this past year and have not had a problem. I've heard a vitamin (can't think  which one right now) might be responsible, also. The main thing about vitamin  and mineral deficiencies is they usually take a long time developing and a long  time fixing. There are exceptions to this rule, of course. The herd health will  be greatly improved by providing vitamins and minerals year 'round and based on  what else they are fed. Lots of people on this board will testify to the value  of regular mineral supplementation.  
        What  is artificial insemination (AI)?  
          Artificial insemination (AI) is  the process of impregnating a cow with semen that has been removed from a bull.  When done effectively, AI has success rate similar to that of natural breeding.  
        AI is used for a variety of  reasons, some of which include:  
        
          
            - Choosing the sire (or sires) for your breeding program from a       world-wide pool of genetics. 
 
            - Avoiding the expense and added trouble of keeping bulls in       pasture. 
 
            - Breeding more cows to a single bull at one time than would be       possible with natural breeding. 
 
           
         
        How long  can semen be stored?  
          Indefinitely you may lose some  potency, but as long as the tank is full of nitrogen, it will keep for years.  Use tongs to retrieve semen.  
        How  should frozen semen be handled?  
          Semen want last long out of the  tank. You’re supposed to transfer semen from one tank to another in less than  three seconds. When getting ready to A.I. a cow you transfer it from the tank  to a water bath which should be 95 degrees, you want to do this as fast as  possible. You can leave it in the water bath from 30 seconds to 15 minutes. You  can touch it for a short period of time, I have removed it from the tank with  my hands before, but I use tweezers most of the time.  
        What  is the normal temperature for cattle?  
          101.5 F +/- 1 degree, 38.5 C +/-  .5 degree  
      How Does  Salmonella Infect Eggs? 
  Bacteria can be  on the outside of a shell egg. That’s because the egg exits the hen’s body  through the same passageway as feces is excreted. That’s why eggs are washed  and sanitized at the processing plant. Bacteria can be inside an un cracked,  whole egg. Contamination of eggs may be due to bacteria within the hen’s ovary  or oviduct before the shell forms around the yolk and white. SE doesn’t make  the hen sick. It is also possible for eggs to become infected by Salmonella Enteritidis  fecal contamination through the pores of the shells after they’re laid.  
      What  Part Carries Bacteria? 
        Researchers say  that, if present, the SE is usually in the yolk or "yellow." However,  they can’t rule out the bacteria being in egg whites. So everyone is advised  against eating raw or undercooked egg yolks and whites or products containing  raw or undercooked eggs.  
      Should  eggs be eaten Raw? 
        No one should  eat foods containing raw eggs. This includes "health food" milk  shakes made with raw eggs, Caesar salad, Hollandaise sauce, and any other foods  like homemade mayonnaise, ice cream which the egg ingredients are not cooked.  
      Why  Should Eggs Be Refrigerated? 
        Temperature  fluctuation is critical to safety. With the concern about Salmonella, eggs gathered  from laying hens should be refrigerated as soon as possible. After eggs are  refrigerated, they need to stay that way. A cold egg left out at room  temperature can sweat, facilitating the growth of bacteria. Refrigerated eggs  should not be left out more than 2 hours.  
      Should  You Wash Eggs before Storage? 
        No. When the egg  is laid, a protective coating is put on the outside by the hen.  
      Why Do  Hard-Cooked Eggs Spoil Faster than Fresh Eggs? 
        When shell eggs  are hard cooked, the protective coating is washed away, leaving bare the pores  in the shell for bacteria to enter and contaminate it. Hard-cooked eggs should  be refrigerated within 2 hours of cooking and used within a week.  
      Safe Storage  
        Make sure eggs refrigerated  after purchase in the store. Any bacteria present in an egg can multiply  quickly at room temperature.  
      Bringing Eggs Home from the Store  
        Take eggs straight home and  store them immediately in the refrigerator set at 5 °C or below. Keep them in  their carton and place them in the coldest part of the refrigerator, not in the  door. Don’t wash eggs. That could remove the protective coating on the shell  and increase the potential for bacteria on the shell to enter the egg.  
      Is  It Safe to Use Eggs That Have Cracks? 
        Bacteria can  enter eggs through cracks in the shell. Never purchase cracked eggs. However,  if eggs crack on the way home from the store, break them into a clean  container, cover it tightly, keep refrigerated, and use within 2 days. If eggs  crack during hard cooking, they are safe.  
      How Are  Eggs Handled Safely? 
        Proper  refrigeration, cooking, and handling should prevent most egg-safety problems.  Persons can enjoy eggs and dishes containing eggs if these safe handling  guidelines are followed.  
      Wash hands, utensils, equipment,  and work areas with hot, soapy water before and after contact with eggs.  
      Don’t keep eggs out of the  refrigerator more than 2 hours.  
      Raw eggs and other ingredients,  combined according to recipe directions, should be cooked immediately or  refrigerated and cooked within 24 hours.  
      Serve cooked eggs and dishes  containing eggs immediately after cooking, or place in shallow containers for  quick cooling and refrigerate at once for later use. Use within 1 to 2 days.  
      What  is the Cholesterol Content of Eggs? 
        The most recent  studies show that cholesterol content of one large egg to be 213 milligrams.  All of the cholesterol is in the yolk.  
        An egg is a good source of  complete protein, vitamins A and B-12, riboflavin, folacin, iron, zinc, and  phosphorus.  
      Does the Color of the Shell Affect the Egg’s Nutrients?  
        No. The breed of the hen  determines the color of her eggs.  
      Is the Appearance of Eggs Related to Food Safety?  
        Sometimes, but not usually.  Variation in egg color is due to many factors.  
      Blood spots are caused by  a rupture of one or more small blood vessels in the yolk at the time of  ovulation. It does not indicate the egg is unsafe.  
      A cloudy white (albumen)  is a sign the egg is very fresh. A clear egg white is an indication the egg is  aging.  
      The color of yolk varies  in shades of yellow depending upon the diet of the hen. If she eats plenty of  yellow-orange plant pigments, such as from marigold petals and yellow corn, the  yolk will be a darker yellow than if she eats a colorless diet such as white  cornmeal. Artificial color additives are not permitted in eggs.  
      A green ring on a  hard-cooked yolk is a result of overcooking, and is caused by sulphur and iron  compounds in the egg reacting on the yolk’s surface. The green color can also  be caused by a high amount of iron in the cooking water. Scrambled eggs cooked  at too high a temperature or held on a steam table too long can also develop a  greenish cast. The green color is safe to consume.  
      How  Do Time and Refrigeration Affect Egg Quality?  
        The egg, as laid  at 105 °F, normally has no air cell. It forms as the egg cools, usually in the  large end of the egg, and develops between the two shell membranes. The air  cell is formed as a result of the different rates of contraction between the  shell and its contents. 
        Over time, the white and yolk of  an egg lose quality. The yolk absorbs water from the white. Moisture and carbon  dioxide in the white evaporate through the pores, allowing more air to  penetrate the shell, and the air cell becomes larger. If broken open, the egg’s  contents would cover a wider area. The white would be thinner, losing some of  its thickening and leavening powers. The yolk would be flatter, larger and more  easily broken. The chalazae (kah-LAY-zuh), the twisted cord-like strands of egg  white that anchor the yolk in the center of the white, would be less prominent  and weaker, allowing the yolk to move off center. Refrigeration slows the loss  of quality over time.  
      What  Does It Mean When an Egg Floats in Water? 
        An egg can float  in water when its air cell has enlarged sufficiently to keep it buoyant. This  means the egg is old Crack the egg into a bowl and examine it for an off-odor  or unusable appearance before deciding to use or discard it. A spoiled egg will  have an unpleasant odor when you break open the shell, either when raw or  cooked. 
      Safe Cooking Methods          
        Many cooking  methods can be used to cook eggs safely including poaching, hard cooking,  scrambling, frying and baking. However, eggs must be cooked thoroughly until  yolks are firm. Scrambled eggs should not be runny.  
      What  factors affect the color of meat ? 
        Myoglobin, a  protein, is responsible for the majority of the red color. Myoglobin doesn't  circulate in the blood but is fixed in the tissue cells and is purplish in  color. When it is mixed with oxygen, it becomes oxymyoglobin and produces a  bright red color. The remaining color comes from the hemoglobin which occurs  mainly in the circulating blood, but a small amount can be found in the tissues  after slaughter.  
      Color is also influenced by the  age of the animal, the species, sex, diet, and even the exercise it gets. The  meat from older animals will be darker in color because the myoglobin level  increases with age. Exercised muscles are always darker in color, which means  the same animal can have variations of color in its muscles. 
      In addition, the color of meat  can change as it is being stored at retail and in the home. When safely stored  in the refrigerator or freezer, color changes are normal for fresh meat and  poultry.  
      Does  a change in color indicate spoilage? 
        Change in color  alone does not mean the product is spoiled. Color changes are normal for fresh  product. With spoilage there can be a change in color -- often a fading or  darkening. In addition to the color change, the meat will have an off odor, be  sticky or tacky to the touch, or it may be slimy. If meat has developed these  characteristics, it should not be used.  
      If the color of meat  changes while frozen, is it safe? 
        Color changes, while meats are  frozen, occur just as they do in the refrigerator. Fading and darkening, for  example, do not affect their safety. These changes are minimized by using  freezer-type wrapping and by expelling as much air as possible from the  package.  
      When  displayed at the grocery store, why is some meat bright red and other meat very  dark in color?  
        Optimum surface  color of fresh meat (i.e., dark cherry-red for lamb; grayish-pink for pork) is  highly unstable and short-lived. When meat is fresh and protected from contact  with air (such as in vacuum packages), it has the purple-red color that comes  from myoglobin, one of the two key pigments responsible for the color of meat.  When exposed to air, myoglobin forms the pigment, oxymyoglobin, which gives  meat a pleasingly cherry-red color. The use of a plastic wrap that allows  oxygen to pass through it helps ensure that the cut meats will retain this  bright red color. However, exposure to store lighting as well as the continued  contact of myoglobin and oxymyoglobin with oxygen leads to the formation of  metmyoglobin, a pigment that turns meat brownish-red. This color change alone  does not mean the product is spoiled.  
      What  causes iridescent colors on meats? 
        Meat contains  iron, fat, and other compounds. When light hits a slice of meat, it splits into  colors like a rainbow. There are various pigments in meat compounds that can  give it an iridescent or greenish cast when exposed to heat and processing.  Wrapping the meat in airtight packages and storing it away from light will help  prevent this situation. Iridescence does not represent decreased quality or  safety of the meat.  
      What  causes grayish or green color on cured meats? 
        Exposure to  light and oxygen causes oxidation to take place, which causes the breaking down  of color pigments formed during the curing process. Chemicals in the cure and  oxygen, as well as energy from ultraviolet and visible light, contribute to  both the chemical breakdown and microbial spoilage of the product.  
      What  is the usual color of raw poultry?  
        Raw poultry can  vary from a bluish-white to faint yellow. All of these colors are normal and  are a direct result of breed, exercise, age, and/or diet. Younger poultry has  less fat under the skin, which can cause the bluish cast.  
      Does  a change in color indicate spoilage? 
        Change in color  alone does not mean the product is spoiled. Color changes are normal for fresh  product. With spoilage there can be a change in color -- often a fading or  darkening. In addition to the color change, the poultry will have an off odor,  be sticky or tacky to the touch, or it may be slimy. If poultry has developed  these characteristics, it should not be used.  
      If  the color of poultry changes while frozen, is it safe? 
        Color changes,  while poultry are frozen, occur just as they do in the refrigerator. Fading and  darkening, for example, do not affect their safety. These changes are minimized  by using freezer-type wrapping and by expelling as much air as possible from  the package.  
      What  color and temperature is safely cooked poultry? 
        Safely cooked  poultry can vary in color from white to pink to tan. Check the temperature in  several locations, being sure to include the wing joint. All the meat—including  any that remains pink—is safe to eat as soon as all parts reach at least 75° C.  
      What  causes dark bones in cooked poultry? 
        Darkening of  bones and meat around the bones occurs primarily in young (6-8 weeks)  broiler-fryer chickens. Since the bones have not calcified or hardened  completely, pigment from the bone marrow seeps through the bones and into the  surrounding area. Freezing can also contribute to this darkening. The poultry  is safe to eat when all parts have reached at least 75 ° C.  
      Why  is some cooked poultry pink? 
      Chemical changes  occur during cooking. Oven gases in a heated gas or electric oven react  chemically with hemoglobin in the meat tissues to give it a pink tinge. Often  meat of younger birds shows the most pink because their thinner skins permit  oven gases to reach the flesh. Older animals have a fat layer under their skin,  giving the flesh added protection from the gases. Older poultry may be pink in  spots where fat is absent from the skin.   |