MOR KARAMANLARDA KUYRUK KESMENİN ve BAZI KUYRUK KESME METOTLARININ BÜYÜMEYE ve MERİNOS AŞIMINA ETKİLERİ

Year 1970, Volume: 1 Issue: 3, - , 10.12.2010

Kemal Bıyıkoğlu Oktay Yazgan Ahmet Çelik

Abstract

SUMMARY

EFFECTS OF DOCKING AND
DOCKrNG METHODS ON THE
GROWTH AND MATlNG ABILlTY
OF MOR KARAMAN (BLACK
KARAMAN) FAT-TAILED
NATIVE SHEEP OF ANATOLlA

Mor Karaman (Black Karaman)
sheep are natiye animals of Anatolia;
they form the quassi-totality of sheep in
Turkey. The characteristics of this breed
are:
1.- Cearse weel;
2.-Very big, large fat-tail.
The animal saves part of the supernuous
nutrients which he receives during
the abudant periods and keeps them as
fat in its tail for more severe seasons of
the year.
Consequently, in order to ameliorate
the quality of the wool of the abovementioned
stock, an intensive cross-breeding
program with the use of Merino
rams of Central Anatolia has been under
app1ication since 1950. But owing
to the fat-tail of Karaman ewes, the
slender-tailed Merino rams are unabIe
to jump on them; and as such, it becomes
almost always necessary to recourse
to the artificiaı insemination in the framework
ai tbe cross-breeding program.
Howevet, this artificial insemination
turns out to be a very difficu1t as well
as expensive method under hard conditions
that prevail in most parts of
Anatolio
Sut in 'spite of the above-mentioned
handicaps, the first worker of our team
has done a more or less sııccessfuI experiment
on Mor Karaman ewe lambs
by cutting their tails at first and then
mating them with merina rams. Howe-.
'>er, sonn after the experiment same
questions are raised as to -
1. The docking of the fat-tailed Karaman
lams; and
2. the effects of docking and docking
methods produced on the rate of
growth and mating abilit)' of Mor Kara
man ewes with merino ram lambs.
There different implements have
been used in the docking methods:-
1. Burdjzzo forcepts and a knife
(for cutting the taiI);
2. A mbber ring (elastration ring);
3. A string or cord (used for tying
the tail).
Docking the animals with burdizzo
forceps and a knife was veryeasy and
practicable. The tail was squeezed with
burdizzo forceps between the second
and the third node of the tail-bone, !J,nd
than was cut with a knife. Wouıids
recovered in about 8 days.
Application of the rubber ring was
easy, too. Tails that had been squeezed
with rubber rings, eventually broke down
and dropped by themselves ten or
fifteen days after the application of the
mbber ring; and wounds located in places
of articulations, recovered completely,
in about twenty-one days after the
application of the rubber ring.
The third but the worst and most
painful of aU the three docking methods
was the method where tails were tied
and squeezed with a cord or string, in
artinılation places. After the tying tails
97
swelled and anİmals la id down, lost
their appetites, owing to the pain, till after
a fortnight when tails were separeted
from the body by amputation.
in every of the three docking methods
the following order was observed:-
i. For every method, newly-born
eight ewe lambs and eight ram lambs of
Morkaraman stock were used
as experiment animals.
2. The ewe and ram lambs used,
aged between one and three days;
3. Against 24 ram lambs and 24
ewe lambs that underwent the docking
procedure, an equal number of male
and female lambs were kept as control
group for corİıparison purposes.
Rate of Growth
In order to find out the effects of
every method produced on the rate of
growth, lambs were weighed at an interval
of fifteen days, as from the date of
their birth, until the end of the experiment.
Besides, even after the animals had
beeome twenty-one days old, measurements
of different parts of their bodies
were taken in every fortnihgt. Weighing
and measurement proeedures eontinued
until the end of the experiment,
i. e. until 112 th day.
i. Thus, we can analyse from the
weight increase point of view the effects
of docking and docking methods on
the rate of growth, in this way :
i. with the exception of the cordappIied
group lambs, the average gain
of ewe lambs was generally less than
98
th ose of the ram lambs, and the effects
of docking and docking methods 00
their weight İncrease, too, were hardly
notieeable; they were significantly more
on the ram lambs, so mueh so that, by
various different method appIications,
important differences were obser vable
between the taiJed and the docked ones.
2. In comparİson to the control
group and the other two docking method
groups, in the first twenty-one-day
period of the experiment, the greatest
gain, both in male and in female lambs,
was observable in the group where the
cut of the tail was done with burdiııo
foreeps.
3. With the exception of the cordapplied
group, the average gain (5.10
Kg.) of the other two groups was more
than that of the tailed (control) group
(4,71 kg.).
4. The least gain was observable
in those whose tails were squeezed with
a cord.
ıl. As from the twenty -fİrst day,
until the one hundred and twelvth day,
i,e. until the weaning period or durİng
the ninty-one days of the second period
of the experiment, the greatest gain
was again at the burdiızo group, whilst
the least gain was again observable in
the eord-applied group. Thus, the results
in the second or completing period
were the same as those ofthe fİrst
21-day period.
ııı. During the experimental period
of one hundred and twelve days, the
burdizzo group had a gain more than the
remaining groups, i.e. the control group
and the remaining other two groups;
whereas the cord-applied group had the
least gain. Statistically, differences ın
live weight gap were singificant.
There were no dilIerences between
the ewe lambs of the (tailed) control
group and those of the docked (group).
Measurement!:.
Effect of docking and docking methods
produced on the body growth, i.e., on
body length, on withers height, on heart
gjrth, on width and depth ofchest, were
examined one by one, with the following
results:
1. Docking and docking methods
had little effect 011 the ewe lambs from
the increase poin t ofview of body measurements.
How ever, the ewc lambs
of the cord-applied group showed a slower
development in their mesurements.
2. In ram lambs of all the doeked
groups. the most conspicuous elIect of
doeking and docking methods was seen
on the chest dept. In comparison to
control group, chest-depth in docked
ones, was more developped; width of
chest, hearth girth, withers height, length
o f body, width and heigbt increased as
well, in the docked ram lambs. Statisticaııy
, however, these were insigni ficant.
Mating ability
Doeking had eaused a confortable
approaeh of merinos ram with M orkaraınan
ewes at moments of mating and
ruled out insemination problems.84,3%
of all the doeked ewes produeed lambs
under this normal condition.

Keywords

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