نتایج جستجو برای: chicks

تعداد نتایج: 9949  

Journal: :Poultry science 1996
M A Latour E D Peebles C R Boyle S M Doyle T Pansky J D Brake

In two experiments, the effects of dietary fat and breeder hen age on relative yolk sac weight (RYSW) and total serum cholesterol (CHOL), high (HDLC) and low (LDLC) density lipoprotein cholesterol, triglycerides (TRI), and glucose (GLU) were monitored in broiler embryos and chicks. In Experiment 1, embryos at 18 d of incubation and chicks at hatch were sampled from eggs laid by breeder hens at ...

2010
METIN PETEK ABDULKADIR ORMAN SERDAL DIKMEN FAZLI ALPAY

This study was made to compare physical chick quality indicators such as chick length and feather colour and their effects on the uniformity and subsequent growth performance in broiler. For this reason; 600 day old male chicks were used. Chicks were classified into two groups on the basis of their feather colour: deep and light yellow. Then, chicks in each group were further divided into three...

2014

This study evaluated and compared the efficacy of a live (intermediate plus strain) and two killed (produced from intermediate plus and intermediate strains of viruses) infectious bursal disease vaccines in commercial Isa brown cockerel chicks. Two hundred and eighty, one day old chicks were divided into four groups of seventy chicks each. Group 1, 2 and 3 were vaccinated with live vaccine, kil...

2013
Xu Ting Li Bin Wang Jin Liang Li Rui Yang Si Cong Li Min Zhang Wei Huang Liang Cao

The eff ects of Dangguibuxue Tang (DBT) on growth performance and immunity response in immunosuppressed broiler chicks were investigated in this study. 240 one-d-old broiler chicks (DaHeng S01) were randomly divided into 4 groups, 2.0% DBT-treatment (A), 0.5% DBT-treatment (B), cyclophosphamide-control (C), and control group (D). From 4 d to 7 d of age, chicks in group A, B and C were given cyc...

Journal: :Vision Research 2014
Chin-hung Geoffrey Chu Yongjin Zhou Yongping Zheng Chea-su Kee

This study aimed to characterize corneal accommodation in alert chicks with and without experimentally-induced astigmatism. Refraction and corneal biometry were measured in 16 chicks with experimentally-induced astigmatism (>1.00 D) and 6 age-matched control chicks (astigmatism ⩽ 1.00 D). Corneal accommodation was detected using a Placido-ring based videokeratography system, by measuring change...

2017
ROBERT J. DUSEK MARILYN G. SPALDING DONALD J. FORRESTER NICHOLAS KOMAR JONATHAN F. DAY

One hundred and fifteen Florida sandhill crane (Grus canadensis pratensis) chicks were captured in Osceola and Lake Counties, Florida in 1998 2000 and examined for evidence of disease. Evidence of Eimeria gruis and/or E. reichenowi infection was found in 52% of chicks examined. Ten chicks were positive for antibodies to St. Louis encephalitis virus and 1 of these chicks was also positive for an...

Journal: :Reproduction, nutrition, development 1994
I Turro-Vincent Z Nitsan M Picard E A Dunnington P B Siegel

The effect of residual yolk removal at hatch on growth and feeding behavior was assessed in lines of chickens divergently selected for low (LW) or high (HW) 56-day body weight. At hatch chicks were assigned to 1 treatment: removal of the residual yolk (R) or no surgery (I). Twenty-four chicks per line (12 I and 12 R) were assigned to an all-mash regimen (M) and 48 per line (24 I and 24 R) to a ...

Journal: :Poultry science 1997
P C Augustine J L McNaughton E Virtanen L Rosi

At 7 d postinoculation (DPI) with a mixed culture of avian Eimeria species, 21-d-old chicks maintained in batteries and floor pens on a diet containing 0.15% (3 lb/ton) betaine plus 66 ppm (60 g/ton) salinomycin were significantly heavier and had significantly lower feed conversion ratios and mortality than chicks fed diets containing 0.15% betaine or 66 ppm salinomycin alone, or the control di...

Journal: :Physiology & behavior 2002
Yvonne M van Hierden S Mechiel Korte E Wim Ruesink Cornelis G van Reenen Bas Engel Gerdien A H Korte-Bouws Jaap M Koolhaas Harry J Blokhuis

Feather pecking in domestic fowl is a behavioral abnormality that consists of mild or injurious pecking at feathers of conspecifics. Previously, it was shown that chicks from a high feather-pecking (HFP) and low feather-pecking (LFP) line of laying hens already differ in their propensity to feather peck at 14 and 28 days of age. As a first step in investigating a possible relationship between t...

1998
Jonathan N. Daisley Michael Gruss Steven P. R. Rose Katharina Braun

In the young chick, the intermediate medial hyperstriatum ventrale is involved in learning paradigms, including imprinting and passive avoidance learning. Biochemical changes in the intermediate medial hyperstriatum ventrale following learning include an up-regulation of amino-acid transmitter levels and receptor activity. To follow the changes of extracellular amino acid levels during passive ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید