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Agriculture for Secondary Schools


          animal. A successfully bred and managed animal will conceive and carry pregnancy
          for the  whole  gestation  period.  Proper care  and  management  of cows will  give
          healthy calves and more milk yield in the successive lactations. Two months before
          calving, feed the cow with sufficient good quality feed (steaming up) to meet the
          requirements for the rapid growth of the foetus. It is also necessary for the mammary
          development and to recoup body reserves necessary for better milk production in the
          coming lactation. This is achieved through drying off and steaming up.

          Drying off: It is a gradual stopping from milking a cow 45 - 60 days before parturition.
          This is after ten 10 months of milking or 7 months of pregnancy. The importance of
          drying off include the following:
          (a)  Allows repair and maintenance of the mammary gland.
          (b)  Allows body maintenance of the dam and the growing foetus.
          (c)  Gives time for the synthesis of colostrum for the expected calf.
          (d)  Increases milk production in the successive lactations.
          (e)  The calf is born vigorous and healthy.

          Steaming up: It is a process of providing extra nutritious feeds over and above the
          maintenance need during the last two months of pregnancy. This is done as follows:
          (a)  Provide extra concentrates of about 1 - 2 kg twice a day with good quality
              leguminous fodder. Keep the cow not too fat nor too thin.
          (b)  Provide the cow with enough clean water and protect it against heat stress.
          (c)  Allow moderate exercise to keep the cow fit.

          Management of pregnant cow just before calving

          Two weeks before calving, separate the cow from the general herd and keep in a
          calving pen. Calving pen should be well cleaned and disinfected against disease

          causing agents. Heifers should be introduced to the milking parlour and be trained
          to get accustomed to milking by often taking them to the milking parlour. Massage
          the udder gently.
          (a)  Provide comfortable bedding for the pregnant cow.
          (b)  Avoid transportation of heavily pregnant animals. Pregnant animals which are
              more than 8 months should not be allowed to move long distances.
          (c)  Avoid slippery floors and prevent injury to the udder as it distends near calving.


          Management during parturition
          Pregnant animals should be watched closely during parturition. You will know that
          the cow is about to calve when the belly has increased in size, especially on the
          right flank of the cow, the udder is filling up and the teats are stiffening, the vulva

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