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عدد الاستشهادات
في قاعدة ارسيف
Effect of daily weight gain on age at first calving and subsequent milk yield of Holstein heifers in Egypt
By: Sadiq, Rabi Rajab; Hasan, Jamal Ashur; Ibrahim, Muhammad Abd al-Aziz Muhammad…[et al.]. Egyptian Journal of Animal Production. Vol. 51, no. 3 (Sep. 2014), pp.164-171, 8 p.
Subjects: Animals; Egypt; Pregnancy; Reproduction; Physiology