نتایج جستجو برای: feed conversion rate

تعداد نتایج: 1110410  

Journal: :Asian Journal of Fisheries and Aquatic Research 2022

Feed is a very important factor in vannamei shrimp culture. The initial stage of stocking the cultivation requiring higher percentage feed. application probiotics intensive culture known to have significant effect on survival shrimp. Encapsulation can increase viability probiotic bacteria compared free cells without encapsulation. Research has been carried out provision encapsulated consortia p...

ابوالقاسم گلیان, , فریدون افتخار شاهرودی, , مهدی نصیری محلاتی, , حسن کرمانشاهی, , شهریار مقصودلو, ,

An experiment with a 33 factorial arrangement in a completely randomized design with 450 day-old broilers was conducted to study the effect of energy level and time of change from starter to finisher diets on performance and economic aspects of broilers. Broiler chickens were fed at three levels of dietary energy (2800, 3000, and 3200 KcalME/Kg) from 1-42 days of age. Starter and finisher diet...

2007
W. A. Dozier A. Corzo M. T. Kidd

Two experiments (EXP) were conducted to evaluate the interactive effects of dietary AME and amino acid (AA) density (total basis) on broiler chickens from 42 to 56 d of age. In EXP 1, diets were formulated to contain low AME (3,140 kcal/kg) and moderate AME (3,240 kcal/kg) in combination with moderate AA (16.2% CP, 0.88% Lys, and 0.75% TSAA) and high AA (18.0% CP, 0.98% Lys, and 0.83% TSAA) and...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2014
omid fani makki mahmod ghazaghi hossein ansari nik

background & aim: medicinal plants is very potential to be used as a supplementary feed as well as feed additive in broilers.this experiment was conducted to investigate the effects of milk thistle (mt) and thyme seeds (ts) on the performance in broilers. experimental: in this study, 160 one-day-old (ross 308) male broiler chicks were divided randomly into four major groups with 4 replicate...

ژورنال: علوم آب و خاک 2002
جواد پوررضا, , عبدالحسین سمیع, , مهرداد بویه, ,

An experiment was carried out to determine the effects of different levels of lysine and protein on the performance of 240 Hy-Line W36 layers. Ten experimental diets were tested in a 2×5 factorial arrangement with a completely randomized design. Two basal diets (13 and 14% protein) were tested at different levels (10 and 20% lower than NRC, NRC and 10 and 20% above NRC recommendations). Dietary...

جواد پوررضا, , عبدالحسین سمیع, , مهرداد بویه, ,

An experiment was carried out to determine the effects of different levels of lysine and protein on the performance of 240 Hy-Line W36 layers. Ten experimental diets were tested in a 2×5 factorial arrangement with a completely randomized design. Two basal diets (13 and 14% protein) were tested at different levels (10 and 20% lower than NRC, NRC and 10 and 20% above NRC recommendations). Dietary...

G. Ahmad Bhat H. Ashraf Waiz, L. Gautam R.K. Nagda

The aim of this study was to investigate the effect of wet feeding on feed conversion efficiency in laying hens during summer season. The study was carried out on 192 pullets of eight weeks age (distributed to four groups). The feed offered to chicks consisted of starter diet up to 8 weeks of age and grower diet up to 20 weeks of age. From 20 weeks onwards, birds were provided with layer diet u...

2010
Daniel Hurnik

It is widely recognized that a large variation in productivity and profitability exists between farms in a country, and similarly, between countries in a global economy. Some profitability variables are due to cost of inputs and management and these are controllable by producers; other factors are not so easily predicted or controlled, for example: 65% of income variation is estimated to be due...

2009
M. A. Hoque

The feed resource for animals is a major cost determinant for profitability in livestock production enterprises, and thus any effort at improving the efficiency of feed use will help to reduce feed cost. Feed conversion ratio, expressed as feed inputs per unit output, is a traditional measure of efficiency that has significant phenotypic and genetic correlations with feed intake and growth trai...

ژورنال: علوم آب و خاک 2003
ابوالقاسم گلیان, , فریدون افتخار شاهرودی, , مهدی نصیری محلاتی, , حسن کرمانشاهی, , شهریار مقصودلو, ,

An experiment with a 33 factorial arrangement in a completely randomized design with 450 day-old broilers was conducted to study the effect of energy level and time of change from starter to finisher diets on performance and economic aspects of broilers. Broiler chickens were fed at three levels of dietary energy (2800, 3000, and 3200 KcalME/Kg) from 1-42 days of age. Starter and finisher diet...

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