پردیس کشاورزی و منابع طبیعی دانشگاه تهران Iranian Journal of animal Science 2008-4773 44 1 2013 05 22 Effect of Extruded Linseed Diet on Production and Reproduction Performance of Holstein Cows Effect of Extruded Linseed Diet on Production and Reproduction Performance of Holstein Cows 83 88 32155 10.22059/ijas.2013.32155 FA Jamshid JALILNEZHAD Expert, Animal Scienes, and Director, Faka Agro-Animal husbandary Corporation Vahid MUHARRAMI Senior Expert faka Agro-Animal Husbandary Corporation Heshmatollah BAHRAMI YEKDANGI Postgradute Student, Isfahan Industrial University, Isfahan Amir KHAMESI Expert faka Agro-Animal Husbandary Corporation Hadi KHORSAND Senior Expert, faka Agro-Animal Husbandary Corporation Journal Article 2012 06 26 The present study was conducted to evaluate the effects of extruded Linseed on milk production,dry matter intake and reproduction performance of 300 Holstein lactating cows (35±15 days in milk;41±9/8 Kg/day of milk production). Cows were placed in a completely randomized design of 2treatments (concentrate containing 7 percent of extruded linseed vs. control), (150 cows pertreatment). Cows were fed a balanced total mixed ration (610 g concentrate /kg DM and 390 g forages/kg DM) 3 times per day and while being milked 3 times per day too. Cows in group 1 were fedTotally Mixed Rotion (TMR) with no extruded linseed (control), while those in group 2 fed TMRcontaining extruded linseed (7 percent of concentrate). Extruded linseed did not affect milk productionand dry matter intake (P>0.05). Cows treated with extruded linseed had higher pregnancy rates, fewernumber of open days and number of inseminations (P<0.05). It was finally concluded that extrudedlinseed in ration can increase reproduction performance of Holstein dairy cows in their early lactation. The present study was conducted to evaluate the effects of extruded Linseed on milk production,dry matter intake and reproduction performance of 300 Holstein lactating cows (35±15 days in milk;41±9/8 Kg/day of milk production). Cows were placed in a completely randomized design of 2treatments (concentrate containing 7 percent of extruded linseed vs. control), (150 cows pertreatment). Cows were fed a balanced total mixed ration (610 g concentrate /kg DM and 390 g forages/kg DM) 3 times per day and while being milked 3 times per day too. Cows in group 1 were fedTotally Mixed Rotion (TMR) with no extruded linseed (control), while those in group 2 fed TMRcontaining extruded linseed (7 percent of concentrate). Extruded linseed did not affect milk productionand dry matter intake (P>0.05). Cows treated with extruded linseed had higher pregnancy rates, fewernumber of open days and number of inseminations (P<0.05). It was finally concluded that extrudedlinseed in ration can increase reproduction performance of Holstein dairy cows in their early lactation. https://ijas.ut.ac.ir/article_32155_883fb98c56421224ce07c04318b0eeb7.pdf