Performance of growing crossbred Friesian calves fed biological treated roughages and concentrate 1 - Feeding values and animal performance
Abstract: The aim of this study was to investigate the effect of feeding biological treated roughages and concentrate feed mixture of growing crossbred Friesian calves on the nutritive values and animal performance. A feeding trial for 183 days was carried out using forty eight crossbred Friesian calves of 6 -7 months old and 189.17 ± 3.58 Kg live body weight (LBW). Animals were divided into 3 similar groups in LBW of 16 calves; each group was divided into two bgroups (8 calves each). The experimental groups allotted randomly into six rations: control (R1, R3 and R5): 2% of LBW. Concentrate feed mixture (CFM) and ad-libitum straws of wheat, bean and clover, respectively, while R2, R4 and R6 included 2% CFM of LBW plus biological treated (Trichoderma harzinaum F-418 fungi) previous straws ad-libitum, respectively. Feeding period extending to 183 days. Feed intake, digestibility coefficients, nutritive values, daily gain, feed conversion and economical efficiency was determined. Results indicated that the apparent digestibility coefficients of all nutrients were higher (P<0.05) with rations containing biological treated straws than those in other rations. Nutritive values as TDN and DCP were significantly higher (P<0.05) with biological treatment than the control groups. Also, CF and fiber fractions digestibility of biological treated straws were significantly higher (P<0.05) than the control treatments. Daily DMI expressed as Kg/h/d or DM/kg W0.75 was significantly (P<0.05) higher in calves fed rations containing biological treated straws compared to those given the control rations. Calves received rations containing biological treated straws recorded higher (P<0.05) average daily gain (ADG) than those received the control rations, the realized ADG was 1.328, 1.524 and 1.721 kg/day for R2, R4 and R6, respectively, while calves of the control groups R1, R3 and R5 recorded 1.253, 1.357 and 1.456 kg/day, respectively. Feed conversion of calves fed R2, R4 and R6 was markedly better than of the control groups. Economical efficiency was better with calves fed rations containing biological treated bean and clover straws, while wheat straw was not economic (R2). It could be concluded that, feeding biological treated (Trichoderma harzinaum F-418 fungi), wheat, bean and clover straws ad-libitum with 2% of LBW concentrate feed mixture (2% of LBW of growing crossbred Friesian calves), resulted in superior nutrition status and better daily gain, feed conversion and economical efficiency, as compared with control groups could be recommended.
Key words: Straws, Fungus, biological treatments, Feeding value, Frisian calves.
Publication year 2009
Pages 12-26
Availability location معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى- الجيزة
Availability number
Organization Name
serial title Egyptian Journal Nutrition and Feeds
ISSN 1110-6360
Author(s) from ARC
External authors (outside ARC)
    محمد السعيد لاشين جامعة الازهر
    امين عبد المبدى حجازى جامعة الازهر
    محمد فاضل المركز القومى للبحوث
    مصطفى جبر زويل الهيئة العامة للمشروعات
Agris Categories Animal feeding
AGROVOC
TERMS		 Concentrates. Fungi. Nutritive value. Performance testing. Roughage. Straw.
Proposed Agrovoc Frisian calves;biological treatments;
Publication Type Journal
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