scholarly journals Feed Restriction During the Growing Period, Forced Molt, and Egg Production

1984 ◽  
Vol 63 (9) ◽  
pp. 1895-1897 ◽  
Author(s):  
K. LEE
1962 ◽  
Vol 42 (1) ◽  
pp. 95-101 ◽  
Author(s):  
E. E. Gardiner ◽  
T. M. MacIntyre

Two experiments were conducted to measure some of the effects of varying the length and the degree of feed restriction of confinement-reared pullets on laying-house performance. In general, increases in the length of time of restriction were followed by an increase in the number of days required to reach 50 per cent production, an increase in the initial egg size (first 8000 eggs), and a decrease in body weight at either 21 or 22 weeks of age. Feed restriction, in most cases, changed the pattern of egg production so that the birds came into production later than full-fed birds but subsequently "peaked" at a higher rate of production and maintained a higher rate of production for the remainder of the experimental period. Restricting the feed intake of the growing pullets resulted in a substantial feed saving during the growing period, but had no measurable effect on feed consumption during the laying period.


2019 ◽  
Vol 4 (2) ◽  
pp. 75
Author(s):  
Fatkur Rohman ◽  
Ristika Handarini ◽  
Hanafi Nur

Moringa leaves contain phytochemicals which can be used to improve the performance of quails in their growing period.  This study was aimed at assessing the effects of the inclusion of moringa leaf solution in drinking water on the performance of quails.  The study was conducted at Badrupuyuh Farm, Sukajaya Village RT 01/02, Ciomas, Bogor Regency from October to December 2017.  One-hundred quail birds aged 7 days with average initial body weight of 17.87±0.46 g were used.  The birds were fed starter and grower commercial rations.  Moringa leaf solution was given through drinking water.  A completely randomized design with 4 treatments and 5 replicates was used.   Treatments consisted of drinking water containing no moringa leaf solution (R0), drinking water containing 5% moringa leaf solution (R1), drinking water containing 10% moringa leaf solution (R2), drinking water containing 15% moringa leaf solution (R3).  Data were subjected to an analysis of variance and a Duncan test.  Measurements were taken on feed intake, body weight gain (BWG), feed conversion, and mortality rate.  Results showed that there were significant effects (P<0.05) of treatments on BWG in week 2 and 4 and feed conversion in week 2.  No mortality of quails was found.  It was concluded that the inclusion of 10% moringa leaf solution in drinking water could increase BWG in week 2 and 4, improve feed conversion, and maintain the life of quails.  It was recommended that further studies on the effects of moringa leaf solution inclusion in drinking water on egg production in laying period.  Key words: performance, quail, moringa leaf solution


1971 ◽  
Vol 11 (49) ◽  
pp. 161 ◽  
Author(s):  
JK Connor ◽  
HW Burton

Two experiments examined the effects of protein restriction in the growing period on the production of egg type pullets. The protein levels of diets fed in the growing period were 15, 13, and 11 per cent. The treatments were incorporated in factorial designs with nutritional treatments in the laying period involving diet protein levels of 17, 15, and 13 per cent and, for one of the experiments, with housing densities of either 4 sq. ft. or 2 sq. ft. per bird. Restriction of protein during the growing period retarded growth and delayed sexual maturity, but neither of the levels of restriction examined increased subsequent laying performance. Eggs lost due to delays in the onset of production were not compensated for by increases in subsequent production and egg weight was generally depressed by protein restriction. The pattern of egg production was altered by restriction. A 13 per cent protein layer diet introduced at point of lay also reduced bodyweight gain and delayed age at sexual maturity. Interactions between nutritional and housing treatments in the growing and laying periods were apparent in egg production and egg weight.


1971 ◽  
Vol 11 (53) ◽  
pp. 624 ◽  
Author(s):  
W Turner ◽  
CG Payne

The use of high protein wheat as the main component of a grower diet for laying strain pullets from seven weeks of age to point-of-lap was investigated. This diet was shown to have an inadequate lysine content for maximum growth rate, and was probably also deficient in arginine. Birds receiving this diet were restricted in their growth rate, and consequently their sexual maturity was delayed. Subsequent egg production was increased sufficiently to offset this delay, and an advantage of this diet was found to be a reduced food intake during the growing period


1959 ◽  
Vol 39 (2) ◽  
pp. 217-225 ◽  
Author(s):  
T. M. MacIntyre ◽  
J. R. Aitken

Experiments were conducted in 3 successive years to measure the effect on the performance of laying hens of restricting feed during the rearing period on range. About 1100 birds were reared and carried through a laying year in each experiment. Feed restriction was 72, 76 and 63 per cent of full feed for the test groups in Experiments 1, 2, and 3 respectively. All birds were full-fed in the laying house.Feed restriction changed the pattern of egg production, in that the restricted birds came into production later but subsequently laid at a higher rate than their full-fed counterparts. After 318 and 322 days in production the restricted birds in Experiments 1 and 2 respectively had overcome the disadvantage of a late start (7 and 14 days) and produced as many eggs as the full-fed birds. In Experiment 3, the restricted birds were held back 20 days, and after 315 days in production were still significantly behind in number of eggs produced.The restricted birds in the three experiments consumed an average of 0.17 pounds less feed per dozen eggs over the combined rearing and laying periods This amounts to a saving of 3 pounds of feed per bird, since the mean egg production of the restricted groups was 18 dozen eggs per bird.Early egg size was markedly increased by feed restriction and egg weights taken later in the year (after 3 months in production) remained slightly higher for the restricted groups. Albumin score for eggs from the restricted birds was better in all tests, but not significantly so in any given experiment. Specific gravity of the eggs was not influenced by feed restriction.Mortality on range and in the laying house was not affected by feed restriction on range. Body weight at housing time was much lower for the restricted birds but was not significantly lower at the end of the laying year.


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