تأثير كنجاله كلزاي تخميري بر عملكرد، قابليت هضم مواد مغذي، فراسنجه هاي خوني، كاني شدن استخوان درشت ني و خصوصيات روده جوجه‌هاي گوشتي

The effect of fermented canola meal on performance, nutrient digestibility, blood parameters, tibia mineralization and intestinal characteristics of broiler chickens

ﻦ ﭘﮋوﻫﺶ ﺑﺎ ﻫﺪف ﺑﺮرﺳﯽ اﺛﺮات ﺗﺨﻤﯿﺮ ﺑﺮ ﺧﺼﻮﺻﯿﺎت ﻏﺬاﯾﯽ ﮐﻨﺠﺎﻟﻪ ﮐﻠﺰا )ﺑﺎ اﺳﺘﻔﺎده از ﻻﮐﺘﻮﺑﺎﺳﯿﻠﻮس ﻓﺮﻣﻨﺘﻮم و ﺑﺎﺳﯿﻠﻮس ﺳﺎﺑﺘﯿﻠﯿﺲ و آﺳﭙﺮژﯾﻠﻮس اورﯾﺰا( و ﻫﻤﭽﻨﯿﻦ ﻣﻘﺎﯾﺴﻪ ﮐﻨﺠﺎﻟﻪ ﮐﻠﺰاي ﻓﺮآوري ﻧﺸﺪه ﺑﺎ ﮐﻨﺠﺎﻟﻪ ﮐﻠﺰاي ﺗﺨﻤﯿﺮي ﺑﺮ ﻋﻤﻠﮑﺮد رﺷﺪ ﺟﻮﺟﻪ ﻫﺎي ﮔﻮﺷﺘﯽ ﺻﻮرت ﮔﺮﻓﺖ. دراﯾﻦ ﺗﺤﻘﯿﻖ ﺗﻌﺪاد280 ﻗﻄﻌﻪ ﺟﻮﺟﻪ ﻧﺮ ﯾﮏ روزه ﮔﻮﺷﺘﯽ ﺳﻮﯾﻪ راس 308 در ﻗﺎﻟﺐ ﻃﺮح ﮐﺎﻣﻼً ﺗﺼﺎدﻓﯽ ﺑﻪ ﻫﻔﺖ ﺗﯿﻤﺎر آزﻣﺎﯾﺸﯽ ﺑﺎ ﭼﻬﺎر ﺗﮑﺮار و در ﻫﺮ ﺗﮑﺮار ﺑﺎ 10 ﺟﻮﺟﻪ اﺧﺘﺼﺎص داده ﺷﺪ. ﺗﯿﻤﺎرﻫﺎي آزﻣﺎﯾﺶ ﺷﺎﻣﻞ ﺗﯿﻤﺎر ﺷﺎﻫﺪ، ﺗﯿﻤﺎرﻫﺎي ﺣﺎوي ﮐﻨﺠﺎﻟﻪ ﮐﻠﺰا و ﮐﻨﺠﺎﻟﻪ ﮐﻠﺰاي ﺗﺨﻤﯿﺮي ﻫﺮ ﯾﮏ در ﺳﻪ ﺳﻄﺢ ﭘﻨﺞ،10 و 15 درﺻﺪ ﺑﻮدﻧﺪ. ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﮐﻪ ﺗﺨﻤﯿﺮ ﮐﻨﺠﺎﻟﻪ ﮐﻠﺰا ﺳﺒﺐ ﮐﺎﻫﺶ ﮔﻠﻮﮐﻮزﯾﻨﻮﻻت و اﺳﯿﺪﻫﺎي آﻣﯿﻨﻪ ﻣﺘﯿﻮﻧﯿﻦ و ﺳﯿﺴﺘﺌﯿﻦ ﺑﻪ ﻣﯿﺰان 50 درﺻﺪ ﺷﺪ درﺣﺎﻟﯽ ﮐﻪ ﻣﯿﺰان ﮔﻮﮔﺮد ﺣﺪود 50 درﺻﺪ و درﺻﺪ ﭘﺮوﺗﺌﯿﻦ ﮐﻨﺠﺎﻟﻪ ﮐﻠﺰا ﺗﺨﻤﯿﺮي ﺑﻪ ﻣﯿﺰان 2/2 درﺻﺪ ﻣﺎده ﺧﺸﮏ اﻓﺰاﯾﺶ ﻧﺸﺎن داد. ﻣﺼﺮف ﮐﻨﺠﺎﻟﻪ ﮐﻠﺰا و ﯾﺎ ﮐﻨﺠﺎﻟﻪ ﮐﻠﺰاي ﺗﺨﻤﯿﺮي ﺗﺎ ﺳﻄﺢ 15 درﺻﺪ ﺗﺄﺛﯿﺮي ﺑﺮ ﺻﻔﺎت ﻋﻤﻠﮑﺮدي، وزن اﺟﺰا ﻻﺷﻪ، ﮐﺎﻧﯽ ﺷﺪن اﺳﺘﺨﻮان درﺷﺖ ﻧﯽ و ﻗﺎﺑﻠﯿﺖ ﻫﻀﻢ ﻣﻮاد ﻣﻐﺬي ﻧﺸﺎن ﻧﺪاد. اﺳﺘﻔﺎده از ﮐﻨﺠﺎﻟﻪ ﮐﻠﺰاي ﺗﺨﻤﯿﺮي ﺳﺒﺐ اﻓﺰاﯾﺶ ﻣﯿﺰان ﻫﻮرﻣﻮن ﻫﺎيTSH و ACTH ﺷﺪ، ﻫﻤﭽﻨﯿﻦ وﯾﺴﮑﻮزﯾﺘﻪ روده ﺑﺎ ﻣﺼﺮف ﻫﺮ دو ﻧﻮع ﮐﻨﺠﺎﻟﻪ اﻓﺰاﯾﺶ ﻧﺸﺎن داد )0/05

This study intended to investigate the effects of canola meal fermentation on its nutritional characteristics and broiler chickens growth performance using Lactobacillus fermentum and Bacillus subtilis and Aspergillus oryzae. In this experiment, 280 male Ross day-old chicks were randomly assigned to 7 experimental treatments with 4 replicates containing 10 chicks each. Treatments included control diet, canola meal and fermented canola meal at 3 levels (5, 10 and 15%) each. Results indicated that fermentation of canola meal reduced the amount of glucosinolates and amino acids methionine and cysteine by 50%, while its sulfur content increased about 50% and protein content of fermented canola meal increased by 2.2%. At the level of 15%, processed and unprocessed canola meal had no effect on growth performance, weight of carcass parts, tibia mineralization and nutrient digestibility in grower, finisher and whole period .It is concluded that fermented canola meal increased TSH and ACTH levels. Also intestinal viscosity increased with consumption of both types of meal (P <0.05) but had no effect on jejunal morphology and ileum pH. canola meal meal (processed or unprocessed) can be used up to 15% in broiler diets without any adverse effect. However fermentation process reduces the glucoseinolate level significantly.