The number of dairy goat herds has greatly increased in the United States in past years. This has  brought increased needs for accurate production  and management information.
The National Cooperative Dairy Herd Improvement Program (NCDHIP) is a production-testing  and information-gathering system that provides important information for management, breed and  pedigree work, genetic evaluations, education and  research. The program was developed primarily for  dairy cattle, but dairy goat owners also are using  the program. However, the number of dairy goats  participating in the Dairy Herd Improvement Program is still limited. Participation is sometimes difficult because: 1)Goat herds tend to have few animals;  therefore, the cost of testing goats may be high when compared with their earning  capability. 2) Participating goat owners are asked to abide  by official Dairy Herd Improvement (DHI)  and Dairy Herd Improvement Registry  (DHIR)rules, and their breed registry  organization's rules; for example, the American Dairy Goat Association (ADGA)  and the American Goat Society(AGS). 3)Goat owners may be located in areas not  readily served by a Dairy Herd Improvement  Association (DHIA), or the DHIA may have  bylaw restrictions on dairy goats. 4)Goats are seasonal breeders, so there may be  a period during the year when all does in the  herd are dry at the same time; although the herd is to be on test the year around, whether  does are milking or are dry.
There are several ways to obtain official  production-testing information that is acceptable  to the breed registry organizations,breed registry  programs, and DHI programs. There are also other production-testing programs for obtaining unofficial production data for herd management. Such  records are not acceptable to the dairy goat breed  registry organizations because of their unofficial  status.
Official Production-Testing Programs. The One-Day Test is a dairy goat breed registry  program and has its own rules and procedures.  These tests, usually held during local fairs or  special goat shows, provide opportunity for does to  earn ''star'' recognition. Arrangements must be  made, in advance, with the dairy goat breed registry organizations and the local DHIA. The  One-Day Test is conducted by a local DHIA supervisor, and there is a special charge. For information and rules concerning the One-Day Test, contact your dairy goat breed registry organization.  This test is not part of the DHI program.
The DHI program is a cooperative education and  research project between a state's land grant  university and the dairy industry. Dairymen  through local, state, and national DHIA's carry  out the business, operation, and service responsibilities of the testing program. To be eligible to  participate in the official testing programs of  NCDHIP, one must be a member of a local or state  DHIA. Official records are those that are verifiable  as having been made in accordance with the National Official DHI Rules, the combined rules for  DHIR, and policies approved by the Policy Board  for NCDHIP. In some instances, a local DHIA  may not be able to accept dairy goat owners as  members in a cow-testing organization because of  limitations in their bylaws. Some may agree, on  the other hand, to provide this official testing  service on a contract basis to nonmember dairy  goat owners.
Dairy goat owners may apply for membership in  a local or county DHIA. When membership is  approved, the local DHIA will send a supervisor  once a month to weigh, sample, and test each doe's  milk for yield and butterfat. The supervisor also  gathers the necessary management information  from the herd owner, then fills out and mails the  completed sheets to a dairy record processing computer center.
The DHIA member may choose between several  official and unofficial testing programs, but will be  required to pay local, state, and national DHIA and breed organization fees, as appropriate, in addition to service fees for electronic data processing.
A permit to test DHIR must be obtained from  the breed registry organization. All official records  must comply with national official DHI and DHIR  rules, dairy goat breed registry organization rules, and rules established by local, state, and national  DHIA's.
Should one be in an area without the services of a  local DHIA, or if the local DHIA is unable to  provide testing services to dairy goat owners, it is possible to form a dairy goat DHIA separate from the local cow DHIA.  ++++MISSING DATA++++
The Group Test (GT) program has been approved  for official types of testing programs by the  National Policy Board for NCDHIP and the. National Sub-Group for Dairy Goats and is now  operational in some state and local DHIA's.
The GT is not a ''type'' of testing program, but a  procedure for conducting official types of testing  programs. The GT enables DHIA-member dairy  goat owners to participate in the official DHI and DHIR programs by allowing each group member  to perform supervisor (test) responsibilities by  testing herds of other group members. Group testing results in lower costs for production  testing. In addition to fulfilling the requirements  for official DHI and DHIR tests, GT members must also abide by special GT rules approved by  the National Policy Board for NCDHIP. Each  member of the test group is trained to perform supervisor responsibilities when weighing and  sampling milk in the herds of other GT members.  The milk sample is taken to the official DHIA  supervisor or lab, the fat test is performed and the  test sheets are forwarded to the dairy record processing computer center. To participate in the  DHIR GT program, one must obtain a ''permit to  test DHIR'' from the breed registry organization  and be enrolled in the official program with the  local or state DHIA. All official group testing is  conducted under the jurisdiction and supervision  of a local DHIA and the state extension dairyman.
Unofficial Production-Testing Programs. Several other production-testing programs may  be provided by the local DHIA to meet individual  needs for management. These do not have stringent rules. It should be recognized that un  official production-testing programs provide  valuable data for use in herd management, but  because the conditions under which the records are made cannot be verified, they are not accepted by the industry or the breed registry organization  officially.
The Commercial Test is performed by the DHIA  supervisor, but compliance with official rules is not  required. It is basically the same type of service  that is provided in the official DHI testing program. There is usually no savings in cost for the  commercial test compared with an official DHI  test.
The Owner-Sampler Test has responsibilities  shared by the owner and the DHIA supervisor.  The owner weighs the milk, takes the sample, and records the data. The fat test is performed by the  DHIA supervisor or lab. The cost of this test is  usually less than other testing programs, because  the owners do most of the work themselves.
The DHIA may take other types of tests  available to dairy goat owners to meet their  specific needs. These programs are also unofficial and not acceptable to the industry or the breed  registry organization,however, provide valuable  information for herd manaement.
Starting a Group Test Program. Timing is important in planning. If dairy goats  begin freshening after the first of January, it is  recommended that program planning and training  take place in October, November, and December.  This allows time to form the GT unit and to begin  operation as soon as the goats start freshening.
The local DHIA board of directors must approve  the local GT program. The local farm advisor or extension agent should explain the basic concepts to  the test group. The DHIA board should ++++MISSING DATA++++
There must be a group leader in charge. The  group leader must attend the DHI supervisor  training sessions and help train group members in  testing and getting samples to the central  laboratory for component testing. Where required,  group leaders are trained as DHI supervisors and  are licensed. They may conduct tests on member  herds outside the group when hired to do so by the  DHIA.
Duties of the group leader usually are not  burdensome; however, to see that the testing  program is conducted as planned and complies  with all rules and policies, the leader must work  closely with the DHIA supervisor and dairy farm  advisor or extension agent.
Problems within the group should first go to the  leader for solution. If the leader cannot resolve the  problems, the leader should then take them to any  or all of the following people in this order:
     DHIA  supervisor, DHIA board of directors, dairy farm  advisor,
     extension agent and/or state extension  dairyman. The leader acts as
     liaison among these  groups.
A special training program for all members of  the test group must be held before herd testing  begins. Training should be conducted by any or all of the following people: DHIA supervisor, dairy  farm advisor,extension agent and/or state extension dairyman.
Items to consider in planning: 1) procedures for weighing and sampling milk; 2)animal identification; 3)recording management information; 4) handling samples; 5)supervisors' responsibilities; 6) herd owners' responsibilities; 7) delivering samples for butterfat, protein, and; 8)somatic cell testing; 9)herd information required; 10) services available for goat herds; 11)computer programs; 12)what to do when all animals are dry; 13)official rules and policies; 14)using production-testing information; 15)equipment maintenance; 16)cost assessment of testing and bill collection; 17)roles, responsibilities, and relationships of group members; 18)testing schedules; 19)ethics
The group may want to impose additional rules  or guidelines for its members. The adoption of such  rules should be by a majority vote of the GT  members. These rules must not conflict with  official rules of DHIA.
The group members should fully understand  that the success of the program is up to each individual member. There can be no shortcuts in the  operation of the program. Records must be kept in  good order so that any question can be verified.  Failure to abide by the rules will jeopardize the GT  program and its production records.
National DHI Rules for Group Test. All GT herds must follow the national DHI and  DHIR rules for official test. These rules are  available from the local DHIA, dairy
farm advisor  or extension agent. The following additional rules  for GT are required.
1. A minimum of four herds in any single test  group (under some
   exceptional circumstances, states may approve groups with  three
   members).
2. Only those dairy goat owners attending a special training program
   supervised by the state extension dairyman are permitted to participate
   in  ++++MISSING DATA++++
Surprise Testing Requirements for DHIR. All official DHI and DHIR herds are subject to  surprise tests (check tests). A surprise test is  designed to verify the authenticity of production, identification, and other details. The surprise test  is unannounced and includes a preliminary milking  preceding the 24-hour milking period being  verified. A surprise test is conducted by a DHIA supervisor or by a qualified group leader for herds  participating in the GT program.
The state extension dairyman for NCDHIP shall  arrange for surprise tests when:
1. Data and information available indicate rules  may have been
   violated to the extent that  regular supervision would not give a true
   test  of the herd or any individuals in the herd.
2. Requested to do so by the Superintendent of  Official Testing,
   the American Dairy Goat  Association or the American Goat Society.
3. The following requirements are met:
   -if an individual doe record, after 90 days, is projected on an
    actual basis to be at least 3000 pounds milk and/or 105 pounds butterfat
   -on a Mature Equivalent (ME) basis, after 90 days, the projected
    record is 3500 pounds milk and/or 125 pounds buttermilk
   -on a ME basis, after 180 days, the projection is 4000 pounds milk
    and/or 140 pounds butterfat
Value of Production Testing.Information from GT, DHI, DHIR or other  similar programs has important direct benefits for  herd management and long range genetic progeny  testing benefits for buck and elite doe selection,  contracts, sales and breed improvements. Participating goat owners receive monthly   computer  printed reports for:each milking doe, total herd, annual and decade progress, merit of bucks used against others, available in the area, completed and projected records,cost accounting, and returns over feed,costs,income returns of individual herd members, animal kidding intervals, average age of first milkers, average age of all milkers, rate of roughage and concentrate, feeding in relation to requirement,reproduction and health records
Production-testing through the GT program provides the dairy goat owner with valuable herd  management information for the improvement of his/her herd, which benefits the whole industry in  the long run.
Jumat, 24 Oktober 2008
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