Oral and Poster Abstracts

Material and methods: This study was conducted on 500 female and
500 male, 1-5 year-old ages Ghezed sheep in four seasons. To assay of
vitamin A and Beta carotene 5ml blood was taken by using venoject
tube from jugular vein of each sheep, and then separated its serum by
centrifuge. Liver samples were provided after slauthering them. The
levels of vitamin A and Beta carotene of blood and liver were measured
by spectrophotometer.
Results: The mean of blood and liver vitamin A and Beta-carotene
were higher in summer than winter (P0.05) table 1. Blood and
liver vitamin A were more at 2 year old ages sheep but blood and liver
carotene levels were high at 4 and 5 year-old ages respectively (P0.05) but the
levels of Beta-carotene were more at female sheep (P< 0.05).
Table 1. Mean of blood and liver vitamin A & Beta-carotene in
different seasons
measured Blood Liver Blood Liver
items vitamin vitamin Beta Beta
season A µg/dl A µg/g carotene µg/dl carotene µg/g
Spring 32.98 36.62 17.07 20.90
Summer 38.23 40.03 20.36 24.61
Autumn 35.20 37.12 18.01 22.34
Winter 30.57 31.54 15.89 19.20
S= significant effect at (P0.05) from those found with the MTDPL or UTDPL.
The DOMI (16g/kgW 0.75 ) of the MTDPL was significantly (P0.05) from those found with the UTDPL or the MTDPL. The DM
and OM digestibility of the MTDPL (37.2%) were higher (P0.05). The results indicated that
the voluntary feed intake and organic matter digestibility of date palm
dry leaf improved as a result of mycelial treatment but this advantage
diminished after harvesting the mushroom.
Key words: Pleurotus florida, nutritive value, digestibility, date palm
dry leaf
745 Fattening Performance, Carcass Traits and some Meat
Quality at Different Slaughter Weights of Bafra Lambs
A. Yakan 1 , N. Ünal 2
1 University of Ankara, Institute of Health Science, Department of
Animal Science, Ankara, Turkey
2 University of Ankara, Faculity of Veterinary Medecine, Department
of Animal Science, Ankara, Turkey
The purposes of this research were to investigate the fattening
performance, carcass traits and some meat quality at different
slaughter weight of Bafra lambs (Chiosx Karayaka B1). Data were
collected from 40 head Bafra lambs, approximately live weight 20 kg
in Amasya- Gökhöyük State Farm (in Turkey) from May to December
2007. Feeding during fattening period was consisted of a concentrate
mixture available ad libitum and 300 g of alfalfa hay per lamb per day.
When lambs reach at 30, 35, 40 and 45 kg, 6 lambs of each slaughter
weight were slaughtered for determining of slaughter, carcass traits
and meat quality. The average daily weight gain and feed conversion
efficiency were 283, 251, 241 and 251 g; 3.460, 3.653, 4.966 and
5.292 kg dry matter intake/ kg body weight gain for each slaughter
weight group, respectively. In each slaughter group, hot carcass
percentages, dressing percentage were 51.92, 53.48, 54.96 and 54.76
% (P0.05); loin eye
areas were 13.616, 13.841, 15.091 and 16.508 cm 2 ; ratios of lean on
carcass were 50.22, 48.60, 50.53 and 45.76 % (P