Research on Animal Production
پژوهشهاي توليدات دامي
rap
Agriculture
http://rap.sanru.ac.ir
1
admin
2251-8622
2676-461X
8
10.61186/rap
14
8888
13
fa
jalali
1400
7
1
gregorian
2021
10
1
12
33
online
1
fulltext
fa
اثر محدودیت کیفی خوراک و مدت زمان اعمال آن بر عملکرد، فراسنجههای بیوشیمیایی خون و خصوصیات لاشه جوجههای گوشتی
Effect of Qualitative Feed Restriction and Duration of its Application on Performance, Blood Biochemical Parameters, and Carcass Characteristics of Broiler Chickens
تغذیه طیور
تغذیه طیور
پژوهشي
Research
<div style="text-align: justify;"><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">در تحقیق حاضر، کاهش غلظت مواد مغذی جیره و مدت زمان استفاده از آن بر عملکرد جوجه گوشتی بررسی شد. </span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">تعداد </span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">375 قطعه</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">جوجه</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">گوشتی</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">نر</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">یک</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">روزه</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">در</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">قالب</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">5 تیمار، 5 تکرار</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">و 15 پرنده</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">در هر تکرار</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">از 1</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">تا</span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> 39 </span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">روزگی</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">استفاده</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">شد. </span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">در این مطالعه، منظور از جیره مرسوم، جیرهای در سطح توصیه احتیاجات سویه جوجه گوشتی است و منظور از جیره رقیق، جیرهای است که از لحاظ انرژی و اسیدهای آمینه ضروری به میزان 7 درصد رقیقتر میباشد. </span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">جیرههای</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">آزمایشی (به</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">ترتیب</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">برای</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">دوره</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">آغازین،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">رشد</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">و</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">پایانی)</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">در</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">تیمارها</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">عبارت بودند</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">از: </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T1</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">)</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">مرسوم،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">مرسوم،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">مرسوم (شاهد</span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">(</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">؛ </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T2</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">) رقیق،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">رقیق،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">رقیق؛ </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T3</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">)</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">مرسوم،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">رقیق،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">مرسوم؛ </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T4</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">)</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">رقیق،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">رقیق،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">مرسوم</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">و</span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T5 </span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">)</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">مرسوم،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">مرسوم،</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">رقیق.</span></span></strong> <strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">در کل دوره (1 تا 39 روزگی)، خوراک مصرفی روزانه (0/05></span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">p</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">) و افزایش وزن روزانه (0/01></span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">p</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">) تیمار شاهد بالاتر از سایر تیمارها بود و تفاوت ضریب تبدیل خوراک بین تیمارها معنیداری نبود. در دوره پایانی، تیمار شاهد تلفات بالاتری نسبت به </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T2</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> و </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T3</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> داشت (0/05></span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">p</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">)، هرچند در کل دوره، تفاوت تیمارها معنیدار نبود. وزن سینه در </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T1</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> و </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T3</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> بالاتر از </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T2</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">، </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T4</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> و </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T5</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> بود (0/01></span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">p</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">). </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T2</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> و </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T3</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> دارای خاکستر استخوان بالاتری نسبت به </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T1</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> و </span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">T5</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;"> بودند (0/05></span></span></strong><strong><span dir="LTR"><span style="font-family:Times New Roman Bold,serif;"><span style="font-size:8.0pt;">p</span></span></span></strong><strong><span style="font-family:2 Mitra;"><span style="font-size:10.0pt;">). در کل میتوان نتیجهگیری نمود استفاده از جیره مرسوم در کل دوره اگرچه باعث افزایش تلفات در دوره پایانی و کاهش خاکستر استخوان شد، اما در مجموع، عملکرد رشد بهتری را به دنبال داشته است.</span></span></strong></div>
<div style="text-align: justify;">In the present research, decrease of dietary nutrients concentration and duration of its using were investigated on performance of broiler chicken. A total of 375 one-day-old male broiler chickens were used in 5 treatments and 5 replicates per treatment of 15 birds per each from 1 to 39 d. In the present study, “normal” diet is referred to a diet based on recommended requirements of broiler chicken strain, and “diluted” diet is referred to a diet diluted 7% for energy and essential amino acids. Experimental diets (respectively, for starter, grower and finisher periods) in the treatments were: T1) normal, normal, normal (control); T2) diluted, diluted, diluted; T3) normal, diluted, normal; T4) diluted, diluted, normal; and T5) normal, normal, diluted. In the whole period (1 to 39 d of age), daily feed intake (p<0.05) and daily weight gain (p<0.01) of control were greater than other treatments. Feed conversion ratio did not show a significant difference among treatments. In the finisher period, mortality was greater in control than T2 and T3 (p<0.05); however, in the whole period, there was no significant difference among treatments. Breast weight was greater in control and T3 than T2, T4 and T5 (p<0.01). The T2 and T3 had the greater bone ash than control and T5 (p<0.05). In general, using the normal diet through the whole period showed the best growth performance, although this treatment revealed the increased mortality and decreased bone ash during finisher period.</div>
جوجه گوشتی, جیره رقیق, جیره مرسوم, عملکرد, محدودیت کیفی
Broiler chicken, Diluted diet, Normal diet, Performance, Qualitative restriction
10
18
http://rap.sanru.ac.ir/browse.php?a_code=A-10-564-2&slc_lang=fa&sid=1
Fatemeh
Khademnasi
فاطمه
خادم ناسی
f.khademnasi@znu.ac.ir
100319475328460016497
100319475328460016497
No
University of Zanjan
گروه علوم دامی، دانشگاه زنجان، زنجان، ایران
Hamid Reza
Taheri
حمیدرضا
طاهری
taherihr@gmail.com
100319475328460016498
100319475328460016498
Yes
University of Zanjan
گروه علوم دامی، دانشگاه زنجان، زنجان، ایران