نتایج جستجو برای: feed

تعداد نتایج: 65403  

Journal: :Poultry science 1997
D O Noble K E Nestor

An experiment was conducted to study the effects of arc beak trimming on feed consumption, weight gain, and feed wastage in males and females from two large-bodied strains and one medium-bodied strain of turkeys. Birds were placed in wire-floored battery cages from 3 to 8 wk of age and feed intake, weight gains, and feed spilled into dropping pans were recorded for each of the 5 wk of each tria...

   Studying broiler preference to feed color is important for improving comfort and welfare of broilers and it may be beneficial for improving performance. The aim of the first experiment was to examine day-old chick's preference in different light colors to different feed colors. One hundred and sixty Ross 308 newly hatched broilers, never exposed to feed, were allocated into pens illuminated ...

2015
M. SHAHEEN I. AHMAD F. M. ANJUM M. K. SAEED Reem Rice Mills

SHAHEEN, M., I. AHMAD, F. M. ANJUM, Q-A. SYED and M. K. SAEED, 2015. Effect of processed rice bran on growth performance of broiler chicks from Pakistan. Bulg. J. Agric. Sci., 21: 440–445 Rice bran was added in broiler chicks feed by replacing 20% maize or 15% wheat. Signifi cant difference in weight gain, feed consumed, feed conversion ratio (FCR), dressing percentage, pancreas weight, feed co...

1999
R. M. Herd P. F. Arthur E. C. Richardson

Net feed conversion efficiency (NFCE) describes whether an animal eats more or less feed than expected for its size and growth rate. Early results from the Trangie NFCE Project, and from the Beef CRC, show that considerable variation in NFCE exists within each of the British breeds tested and is moderately heritable. Estimates of heritability for average daily gain, 365-day weight, feed intake,...

2013
Dhiraj K. Singh D. C. Pande

Conventional reflector based Impulse Radiating Antennas (IRA’s) are designed with conical taper transmission line feed. A novel feed design approach is used to enhance gain of the IRA without increasing diameter of the reflector. This paper discus conventional and new IRA designs of different input impedances. IRA with conventional feed and with new dipole feed is designed for both 200 Ω and 10...

Ali Kargari, Fatemeh Khazaali

In this paper, the removal of phenol by using aqueous solution in a low pressure reverse osmosis membrane was investigated. The effect of feed pressure, feed concentration, feed flow rate and feed pH on phenol rejection was investigated. The results showed that feed pH is the most affective parameter on the phenol rejection. Rejection of phenol increased with increasing pH from 2 to 10 under th...

Journal: :پژوهش های علوم دامی ایران 0
حسن فتحی غلامعلی مقدم احمد نعمت الهی عبدالمنصور طهماسیبی

one experiment was conducted in order to evaluate four levels of macaroni waste including: 0, 10, 20 and 30 percentage in growing turkey feed in a completely randomized design (crd) with 120 local turkey including 3 replicates in 12 pens. during the experiment (3-8 weeks), turkeys received feed and water of free access. weight gain, feed consumption and feed efficiency were measured weekly. dif...

Journal: :Journal of animal science 2015
K E Bøe G M Cronin

We investigated the variation in eating speed by individual pregnant sows and the influence of feeding dry compared to wet feed. A total of 39 Norwegian Landrace × Yorkshire dry sows, 13 primiparous and 26 multiparous, were included in the experiment. In experimental period 1, each sow was offered 2.2 kg of a standard concentrate feed without added water. In experimental period 2, the sows were...

Journal: :تحقیقات دامپزشکی 0
رضا وکیلی گروه علوم دامی دانشگاه آزاد اسلامی واحد کاشمر پروانه خضرائی نیا گروه کلینیکال پاتولوژی دانشکده دامپزشکی، دانشگاه تهران پرستو یوسفی آزمایشگاه مرکزی دکتر رستگار دانشکده دامپزشکی، دانشگاه تهران مژگان احمدزاده آزمایشگاه مرکزی دکتر رستگار دانشکده دامپزشکی، دانشگاه تهران

the aim of the present study was to compare different periods of feed deprivation (day number of starvation in four physical feed restriction programs) on total immunuglobulins and lymphocytes percentage in pullets and cockerels of broiler breeder. a 4x2 factorial experiment based on a completely random design. 160 pullets and 160 cockerels of broiler breeder. feed intake content weekly was the...

2004
P. W. Knap

other energy depots can be forced, however, genetic associations may remain when phenotypic regression is used. Heritability estimates for phenotypic residual feed intake have been moderate, ranging from 0.26 to 0.43. Genetic correlations of phenotypic residual feed intake with feed intake have been highly positive, suggesting that improvement would produce the correlated response of decreasing...

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