تبلیغات
یه دانشجوی ساده رشته کشاورزی - علوم دام - دروه شیر دهی در گاو
 
یه دانشجوی ساده رشته کشاورزی - علوم دام
توسعه کشور عزیزمان با گسترش و ارتقای کشاورزی و علوم دام در کنار علم وصنعت امکان پذیر است.
درباره وبلاگ


اینجانب حسین باقریان دانشجوی رشته علوم دام در دانشگاه پیام نور واحد گالیکش هستم .
قصد من از ایجاد این وبلاگ به اشتراک گذاشتن مطالب رشته علوم دام با شما عزیزان هست امیدوارم مورد استفاده قرار بگیرد.

مدیر وبلاگ : حسین باقریان تبریان
نظرسنجی
از نظر شما وبلاگ جگونه بود؟







پنجشنبه 8 اسفند 1392 :: نویسنده : حسین باقریان تبریان
تولید شیر گاو به طور تقریبی 3 تا 6 هفته بعد از زایمان به حداکثر تولید خود می رسد ، سپس یک کاهش تدریجی در تولید آن به وقوع می پیوند .
توصیه شده است که برای تنظیم یک سال فاصله بین زایمان ها و نیز 60 روز طول دوره خشکی طول دوره شیردهی 305 روز باشد.
میزان تولید شیر در اوج شیردهیبه چند عامل بستگی دارد :
1- شرایط بدنی گاو در موقع زایمان 
2 - توانایی ژنتیکی
3 - نداشتن بیماری و عفونی متابولیکی ( مانند : تب شیر - کتوز) 
4 - رژیم غذایی بعد از زایمان 
میزان کاهش تولید از زایمان تداوم شیردهی گفته می شود .
کاهش شدید در تولید شیر باعث تداوم شیردهی پایین که باید با مدیریت صحیح این تداوم را کنترل و سطح آن را به تداوم بالا برسیم .
بین تولید شیر و درصد چربی و پروتین آن رابطه معکوس دارند .
در دوره شیر دهی لاکتوز کاهش و میزان خاکستری شیر افزایش بسیار اندکی دارند .




نوع مطلب : گاو، 
برچسب ها : علوم دام، گاو، دوره شیردهی، شیر گاو،
لینک های مرتبط :
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شنبه 14 مهر 1397 03:17 ق.ظ
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یکشنبه 8 مهر 1397 05:52 ب.ظ
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جمعه 6 مهر 1397 06:21 ب.ظ
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سه شنبه 27 شهریور 1397 07:03 ب.ظ
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دوشنبه 26 شهریور 1397 04:36 ب.ظ
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یکشنبه 25 شهریور 1397 10:31 ق.ظ
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شنبه 24 شهریور 1397 06:49 ب.ظ
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سبزقهرهورا
دستگلتفکر


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