242 The Impact of Feed Formulation and Feeding Methods on Pig and Poultry Production on the Environment
نویسندگان
چکیده
Abstract Dietary energy and nutrient losses associated with its conversion into animal products increase production costs contribute to the environmental footprint of farms excessive application nitrogen, phosphorus, or trace minerals from manure carbon methane losses. Formulating diets appropriate levels amino acids can help improve dietary protein efficiency reduce For example, an 8% reduction in crude pig feeds is estimated nitrogen by more than 50%, while costing 11% less a control diet without industrial acids. This intake also increases availability due reduced deamination. Urinary intestinal fermentation be 24% lower for pigs fed low-protein compared diets. Nonetheless, determining optimal level acid remains difficult challenge conventional phase feeding systems. Therefore, group individual precision another powerful tool efficiency. By growing-finishing tailored their requirements, decrease excretion 30% greenhouse gas emissions 22% 3-phase feeding. The benefits techniques are additive might result 61% utilization. formulation very-low-protein implementation rely on sound nutritional concepts comprehensive biological models developed precisely estimate real-time requirements responses. Understanding metabolic processes responsible observed variation between animals ability utilize nutrients challenging, but there need further impact livestock
منابع مشابه
the impact of attending efl classes on the level of depression of iranian female learners and their attributional complexity
می توان گفت واقعیت چند لایه ا ی کلاس های زبان انگلیسی بسیار حائز اهمیت است، زیرا عواطف و بینش های زبان آموزان تحت تاثیر قرار می گیرد. در پژوهش پیش رو، گفته می شود که دبیران با در پیش گرفتن رویکرد فرا-انسانگرایی ، قادرند در زندگی دانش آموزانشان نقش مهمی را ایفا سازند. بر اساس گفته ی ویلیامز و بردن (2000)، برای کرل راجرز، یکی از بنیان گذاران رویکرد انسانگرایی ، یادگیری بر مبنای تجربه، نوعی از یاد...
on the comparison of keyword and semantic-context methods of learning new vocabulary meaning
the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...
15 صفحه اولthe impact of generative learning strategy use on efl learners’ reading achievement and critical thinking
این پژوهش کوشیده است تأثیر به کارگیری راهبردهای زایا را بر پیشرفت و بسندگی در خواندن و درک مطلب و نیز بر تفکر انتقادی زبان آموزان انگلیسی را بررسی کند. در این پژوهش تعداد 46 دانش آموز دختر در مقطع متوسطه اول به صورت تصادفی انتخاب وبه دو گروه تجربی و شاهد با تعداد دانش آموزان مساوی در هر گروه تقسیم شدند. به هر دو گروه سه داستان کوتاه به عنوان موضوع خواندن برای کلاس داده شد. به گروه تجربی درابتدا...
the geopolitics of afghanistan after september 11, 2001, and its impact on iranian national security
abstract u.s. attack to afghanistan after 9/11 provided opportunities for us who tried to become the dominant power after collapse of ussr and bipolar world. thinkers like fukuyama believed american liberal democrats thought would be universally accepted without resistances. liberal democracy is the best and final model of governance; in this regard, united state has moral responsibilities for...
15 صفحه اولan investigation of the impact of self monitoring on langauge teachers motivational practice and its effect on learners motivation
the central purpose of this study was to conduct a case study about the role of self monitoring in teacher’s use of motivational strategies. furthermore it focused on how these strategies affected students’ motivational behavior. although many studies have been done to investigate teachers’ motivational strategies use (cheng & d?rnyei, 2007; d?rnyei & csizer, 1998; green, 2001, guilloteaux & d?...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Animal Science
سال: 2022
ISSN: ['0021-8812', '1525-3163', '1525-3015', '1544-7847']
DOI: https://doi.org/10.1093/jas/skac247.237