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Nikola Pacinovski
“Ss. Cyril and Methodius“ University in Skopje,
Institute of Animal Science,
Bul. Ilinden 92a, 1000 Skopje, Republic of Macedonia
pacinovski@mt.net.mk
During
four productive years (2002, 2003, 2004 and 2005), several productive
characteristics of total of 170 sheep from the Awassi breed have been
researched. The sheep age was between the first and the eleventh
lactation and they had in total 1130 lactations finished, during these
four control years. As for statistical processing, except the basic
statistics, all data were analyzed applying the multifactorial fix model.
The influence of the separate factors has been researched using the
F-test, and the differences among the LS-estimates of each effect, have
been determined using the T-test. The analysis has been made by applying
the SPSS programme package. More of the analyzed factors (year,
lactation, month of lambing, fertiìity) had significant hnfluence nn
different levels (P < 0.001, P < 0.01, P < 0.05 on the annual milk production of the researched sheep
population. The average lactation yield at the controlded braed of sheep
forthe analyzed for years was 325±14.864 litres, while the quatity of
milk, consumed by the lams, in average was 89±374 litres. The maximum
lactation yield at this population was measured in the year 2002 (635
litres). The production of commercial milk from this population, in
average for these four years was 236±14.737 litres, while the average
length of nursing was 74±1.145 days. The length of lactation at this
population for these four research years in average was 234±3.90 days.
The fertility had significant influence (P < 0.05) on the lactation milk of the Awassi sheep.
Key words: Awassi; productive characteristics; influence of factors (year,
lactation, month of lambing, fertility)
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