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<p>The aim of this study was to estimate the suckling milk yield (SMY) of the Sicilo-Sarde ewes during different length of suckling periods and to evaluate its impact on the lambs’ growth. The SMY was estimated by the method of weighing lambs before and after suckling. Eight controls were carried out on a sample of ten ewes aged 3.90 ± 0.50 years, suckling single male lambs. The measurement of SMY was conducted weekly until weaning. The daily and total SMY were 1.33 ± 0.21&#xa0;kg/d and 79.62 ± 12.58&#xa0;kg, respectively for 60 days suckling period. The SMY was estimated at 39.30 ± 7.20&#xa0;kg and 61.31 ± 10.67&#xa0;kg for 30 and 45 days of suckling, respectively. Lamb weights were 11.31, 14.73 and 18.24&#xa0;kg respectively at 30, 45 and 60 days of age. The average daily gain (ADG) calculated between the ages of 10 and 30 days (ADG<sub>10-30</sub>), and 30 and 60 days (ADG<sub>30-60</sub>) were 222 ± 46 and 231 ± 45&#xa0;g/d, respectively. Lambs weight at 30 days and ADG<sub>10-30</sub> were the most correlated indicators with all SMY (0.71 ≤ <i>r</i> ≤ 0.80; <i>P</i> &lt; 0.05). The SMY levels of ewes and the lambs’ growth obtained are satisfactory and indicate an interesting dairy potential of this breed. Weaning lambs at 45 days increases the marketed milk, without negatively affecting the lambs’ growth.</p>

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Estimation of milk yield and lambs’ growth during the suckling period for the Sicilo-Sarde breed in Tunisia

  • 期刊论文

  • 发表日期：

    2026年3月5日

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  • Hania Hamdi,
  • Rafik Aloulou,
  • Pierre-Guy Marnet,
  • Youssef M’Sadak

摘要

The aim of this study was to estimate the suckling milk yield (SMY) of the Sicilo-Sarde ewes during different length of suckling periods and to evaluate its impact on the lambs’ growth. The SMY was estimated by the method of weighing lambs before and after suckling. Eight controls were carried out on a sample of ten ewes aged 3.90 ± 0.50 years, suckling single male lambs. The measurement of SMY was conducted weekly until weaning. The daily and total SMY were 1.33 ± 0.21 kg/d and 79.62 ± 12.58 kg, respectively for 60 days suckling period. The SMY was estimated at 39.30 ± 7.20 kg and 61.31 ± 10.67 kg for 30 and 45 days of suckling, respectively. Lamb weights were 11.31, 14.73 and 18.24 kg respectively at 30, 45 and 60 days of age. The average daily gain (ADG) calculated between the ages of 10 and 30 days (ADG10-30), and 30 and 60 days (ADG30-60) were 222 ± 46 and 231 ± 45 g/d, respectively. Lambs weight at 30 days and ADG10-30 were the most correlated indicators with all SMY (0.71 ≤ r ≤ 0.80; P < 0.05). The SMY levels of ewes and the lambs’ growth obtained are satisfactory and indicate an interesting dairy potential of this breed. Weaning lambs at 45 days increases the marketed milk, without negatively affecting the lambs’ growth.