نتایج جستجو برای: small birds

تعداد نتایج: 826161  

Journal: :Turkish journal of agricultural engineering research 2022

This study presents the possibility of using agricultural by-products to solve problem high forage prices. Rice mill pre-cleaning residues are considered solid waste in Egypt, as many tonnes produced every day. These overgrown heaps always cause an environmental problem. Most millers don't know how dispose it. A simple device for purification it use a supplementary feeder small birds has been m...

Journal: :Japanese Journal of Ornithology 1933

Journal: :New Zealand Journal of Experimental Agriculture 1977

Journal: :Brain research bulletin 1981
H J Bischof

MOST groups working on avian brains use head holders adapted to their needs from conventions available ones such as the Kopf and Wells stereotaxic devices. One example is the so-called Revzin-adaptor described by Karten and Hodos [l]. An advantage of their modification is the more accurate placement of the head in an exactly defined angle to the vertical, but this hinders free access to the lat...

Journal: :General and comparative endocrinology 2001
C M Wilson R L Holberton

In birds, intrajugular injection (i.j.) of exogenous adrenocorticotropin hormone (ACTH) has been used to challenge adrenocortical tissue when investigating various dynamics of the hypothalamic-pituitary-adrenal (HPA) axis. Although this method has been shown to deliver ACTH efficiently, i.j. injection can be difficult and potentially damaging to the bird, especially to young birds and small spe...

Journal: :Physiological and biochemical zoology : PBZ 2008
Shana R Lavin William H Karasov Anthony R Ives Kevin M Middleton Theodore Garland

Flying animals may experience a selective constraint on gut volume because the energetic cost of flight increases and maneuverability decreases with greater digesta load. The small intestine is the primary site of absorption of most nutrients (e.g., carbohydrates, proteins, fat) in both birds and mammals. Therefore, we used a phylogenetically informed approach to compare small intestine morphom...

Low nutritive value and suitability of barley as a feedstuff for broilers is mainly due to its non-starch polysaccharides. An experiment was carried out to evaluate if diets high in barley alter the mechanisms responsible for the absorption of nutrients across the intestinal epithelium of broilers, using D-xylose absorption test. Thirty, 14-d old male broiler chicks (Ross 308) with similar body...

Journal: :تولیدات دامی 0
داریوش خادمی شورمستی دانشجوی دکتری تخصصی، گروه پرورش و مدیریت طیور، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران فرید شریعتمداری استاد گروه پرورش و مدیریت طیور، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران محمد امیر کریمی ترشیزی استادیار، گروه پرورش و مدیریت طیور، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران هوشنگ لطف اللهیان استادیار پژوهشی، بخش تغذیه و فیزیولوژی، مؤسسۀ تحقیقات علوم دامی کشور، کرج، ایران

the present study was carried out to evaluate the effects of vegetable fat sources and additives on performance and morphological parameters of the small intestine of arain broiler chickens. birds were randomly used in a 2×3 factorial arrangement of dietary treatments included two fat sources (canola or pumpkin seed) and three additives (without additive, 0.1 g/kg probiotic and 0.15 g/kg virgin...

Journal: :پژوهش های علوم دامی ایران 0
صفا ژاله ابوالقاسم گلیان احمد حسن آبادی سید علی میرقلنج

an experiment was conducted to study the effects of dietary levels of extruded full fat soybean (effsb) on performance, blood metabolites and intestinal morphology of broiler chickens. a batch of ffsb was wet extruded at 155 °c, 15 seconds to provide the extruded full fat soybean (effsb) sample. one hundred and forty four d-old ross 308 male broiler chicks were divided into 12 groups with 12 bi...

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