M. Sharifi
Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
[ 1 ] - Economic Value and Produced Milk Quality in Holstein Lactating Cows in Organic System
In the past decade, a global demand for products from organic agriculture has increased rapidly. Milk quality is of major interest for all parties. Therefore, the objective of this study was to compare cow performance and product quality in conventional and organic system. Twenty Holstein dairy cows were allotted to one of 2 diet groups, which including: a conventional diet (CON), and an organi...
[ 2 ] - Effects of Fat Supplementation and Chop Length on Milk Composition and Ruminal Fermentation of Cows Fed Diets Containing Alfalfa Silage
The aim of this study was to evaluate the effect of fat supplementation for enhancing milk conjugated linoleic acid (CLA) in early lactation without affecting ruminal fermentation. 24 Holstein dairy cows were assigned to a completely randomized design employing a 2 × 4 factorial arrangement. Factors were particle size (15 and 25 mm) and two different sources of alfalfa supplemented with and wit...
[ 3 ] - Effect of Forage Feeding Level on Performance, Meat Quality and Economic Costof Holstein Beef Calves Fed Organic Diet
The aim of this study was to compare conventional and organic diets in beef production. Thirty-two dairy beef calves were used in 4 treatments: organic diet with three levels of forage [70% of organic diet with high amount of forage (ORH), 55% of organic diet with medium amount of forage (ORM), 38% of organic diet with low amount of forage(ORL)] and conventional diet (CON). The dry matter intak...
[ 4 ] - The Effect of Weaning Age on Performance and Economics of Holstein Calves Reared under Organic Farming System
The objective of this study was to evaluate the effects of weaning age on dry matter intake (DMI), average daily gain (ADG), feed efficiency (FE), feed cost (FC) and benefit index (BI) of Holstein calves reared under organic farming system. Thirty two Holstein calves were divided into two treatments: early weaning (EW) vs. late weaning (LW). Calves in the both groups were provided with whole mi...
[ 5 ] - Effect of Forage Feeding Level on Body Weight, Body Condition Score, Milk Production, and Milk Urea Nitrogen of Holstein Cows on an Organic Diet
In the past decade, a global demand for products from organic agriculture has increased rapidly. Milk quality is of major interest to all parties. Therefore, the objective of this study was to compare cow performance and product quality on conventional and organic diets. 72 Holstein dairy cows were allotted to one of four diets: a conventional diet (CON40), an organic diet with a low amount of ...
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