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Influence of feeding different ratios of forage to concentrate and methionine hydroxy analog supplementation on growth performance of holstein heifers [electronic resource].

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EI-Samahy, M.A

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Language: English Summary language: Arabic Description: p.91-105Other title:

تأثير التغذية على مستويات مختلفة من المالى إلى المركز مع إضافة المثيونين هيدروكسى أنالوج على أداء نمو عجلات الإستبدال.‪ [Added title page title]

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Egyptian journal of nutrition and feeds, 2010 v. 13(1) [electronic resource].

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In: Egyptian Journal of Nutrition and Feeds 2010.v13(1)Summary: The objective of this experiment was to evaluate the effects of altered forage: concentrate ratio and DL-methionine analogue supplementation on growth perfonnance of growing heifers until breeding weight (330 kg BW). Twenty-four Holstein heifers with an average of age 5.6 ± 0.36 mo and weight 116 ± 6 kg, were fed restricted intakes formulated to allow for 800 g/d. Experimental diets were formulated to contain either 50: 50 (low forage) of 75: 25 (high forage) torage: concentrate ratio diets dry mater (DM) basis.

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The objective of this experiment was to evaluate the effects of altered forage: concentrate ratio and DL-methionine analogue supplementation on growth perfonnance of growing heifers until breeding weight (330 kg BW). Twenty-four Holstein heifers with an average of age 5.6 ± 0.36 mo and weight 116 ± 6 kg, were fed restricted intakes formulated to allow for 800 g/d. Experimental diets were formulated to contain either 50: 50 (low forage) of 75: 25 (high forage) torage: concentrate ratio diets dry mater (DM) basis.

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