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The effect of initial weight at fattening on some growth performance and economic aspect of Arabi lambs | ||
| Al-Anbar Journal of Veterinary Sciences | ||
| Article 1, Volume 2, Issue 1, 2009, Pages 92-100 PDF (161.46 K) | ||
| Author | ||
| A. H. H. Khoshnaw | ||
| Abstract | ||
| This study was carried out at the Grdarash field. The Agricultural research directorate/ general Agriculture directorate-Erbil in August, 2007. A total of seventeen Arabi male lambs age (5-6 months) were used and all lambs were sheared before starting the trail. Lambs were divided in to two groups. The first group included 8 lambs with average initial weight of 29.938 kg/lamb and the second group had 9 lambs with average initial weight of 39.083 kg/lamb. Both groups were fed diets containing 85% barely, 10% wheat bran and 5% straw. The purpose of this study was to investigate the effect of initial weight at fattening on some growth properties and economical aspect. The over all mean of lamb final weight, total and daily weight gain, total forage consumption, feed efficiency, heart girth, fat-tail length and fat-tail width at widest point, were (48.35 Kg/lamb, 12.73 Kg/lamb, 204 gm/day, 113.52 Kg/lamb and 8.80 Kg/Kg live weight, 81.76 cm, 19.23cm and 26.47cm respectively). The initial group weight at fattening has significantly affected (0.01≥P) final lamb weight, heart girth, fat-tail width at widest point. The interaction effect between and weeks group - weeks was significant (0.01≥P) total and daily weight gain. The total cost of light and heavy initial weight groups were 960233 and 1263315 ID, gain 253567 and 317685 ID, simple returned 0.264 and 0.251, fund return period 238.52 and 250.52 days, and feed gain 878 and 1101 ID respectively . It was found that gain for lambs in heavy weight had higher capital than lambs at light weight but the total cost of lambs at light weight were less so we can raise more lambs than heavy weight group. In addition the fund return period was shorter in light weight group. It is possible to raise to breed lambs of light weight for longer period especially in time where the market is falling down while lambs in heavy weight group reach their final weight so reining become uneconomical | ||
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