The aim of this work has been to assess the effect of diet density [control (CON) or 15% diluted (DIL)] and growth curve [recommended by the genetic line (RBW) or 15% heavier (HBW)] and their interaction on BW uniformity, feeding motivation, behavior, and body composition of broiler breeder pullets. A total of 3,000 one-day-old female breeders Ross 308, distributed in 20 pens, was randomly assi...

Sixty pullets, aged 17 weeks, were presented when presumed to be 'dead' after being exposed to wet-cold weather transportation. The birds appeared unconscious and their feathers were soaking wet, and with a body rigid and cold to touch. The aim of the study was to resuscitate the hypothermic pullets. Blood samples were obtained and core body temperature recorded before and after rewarming. The ...

Antibiotics raise an issue concerning the development of antibiotic resistance some pathogenic bacteria. The use probiotics and Avian IgY in layer pullet farming is a better way protecting against bacteria increasing production performance. Supplementation antibodies probiotics(Lactobacillus acidophilus, Streptococcus faecium, Bifido bacterium longghum, Bacillus thermophilum) were conducted on ...

The objective of this study was to examine the effects of dietary n-6:n-3 ratio on immune and reproduction systems of Leghorn pullet chicks. A total of 216 Hy-Line W-36 pullet chicks (1 d old) were randomly assigned to 3 diets (n-6:n-3 ratios of 10, 6, and 2) until 22 wk of age. The Optomega-50 (Optivite International Ltd., Nottinghamshire, UK) containing 50% salmon fish oil was used as an n-3 ...

The paucity of information on reasons for the increased efficiency of egg production by pullets which have been restricted-fed during rearing is discussed. Preliminary results are presented which form part of a detailed research programme aimed at elucidating the mechanisms responsible. Production responses of hens which had been restricted fed during rearing were similar to those expected. Egg...

This study intended to compare the productive performance of three different layer raising systems; conventional cage (CC), barn (BR) and aviary (AV). The AV is welfare bestowed housing that allows free locomotion for birds within the BR. The BR allows bird's free locomotion inside BR but without multilevel structures. Both pullets and cockerels were housed together in both AV and BR, but only ...

Aim of study: To evaluate antimicrobial, immunomodulatory and hepatomodulatory effects aqueous extracts Petiveria alliacea L. (Guinea hen weed) root leaf on growing pullets.Area Abeokuta, Nigeria.Material methods: Two hundred eighty eight eight-weeks-old Isa-brown pullets were divided into treatments which consisted in birds administered or at four different concentrations (0, 15, 30 45 ɡ/L). E...

this study was conducted to investigate performance of native chickens produced in the centre of production and breeding of native chicken of isfahan in rural areas of isfahan province by using 1440 native pullets with age of 45 days in 4 towns and 2 climate zone of warm and cold. this study employed by coworking 60 rural families that 24 pullets with age of 45 days with ratio of 5 hen to 1 roo...

The objectives were to determine the non-phytate phosphorus (nPP) requirement in 0 3-wk-old laying hen pullets using body weight (BW), mortality corrected feed conversion ratio (FCRm), tibia ash expressed as (TAW) and percentage (TAP), total bone mineral content (BMC) understand longer term effects of early deficiency on over time. Hy-Line W36 distributed across 42 cages resulting 7 dietary tre...

The aim of this study was to analyze the effects on growth and muscle development during the growing period of the sex-linked dwarf gene in the background of a Taiwan Country chicken strain, L2, selected for egg production. Eight crossbred males, heterozygous for the DW*DW mutation, were each backcrossed to six females of the L2 strain to produce two genotypes of BC females, either normal (DW*N...