Performance and Heterophil to Lymphocyte (H/L) Ratio Profile of Broiler Chickens Subjected to Feeding Time Restriction

Azis, Abdul

doi:10.3923/ijps.2012.153.157

Cited by 13 publications

(10 citation statements)

References 7 publications

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“…Further research, is undoubtedly needed to establish the ultimate optimal feeding and lighting programs for broilers. Intermittent feeding or flashed light for broiler chicks was suggested as an alternative system that can be applied to manipulate continuous or restricted lighting and ad libitum feeding problems (Ahmad et al, 2009;Azis, 2012;Svihusa et al, 2013, Farghly, 2014. Moreover, broilers performance may be affected by the lack of nutrients (amino acids, minerals or vitamins) required for protein synthesis in cell through the feed absence time if the intervals of intermittent feeding or darkening were more than a certain time (Makled et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Application of Intermittent Feeding and Flash Lighting Regimens in Broiler Chickens Management

Farghly

Makled

2015

Egyptian Journal of Nutrition and Feeds

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wo experiments were conducted to evaluate the effect of intermittent feeding and flash lighting regimens on growth performance, carcass traits, blood parameters and economic efficiency of broiler chickens. In experiment 1, one hundred and twenty, one-day old Cobb chicks were equally distributed into four groups (each consisted of 3 replicates of 10 birds each). Chicks in the first group (G1) were fed ad libitum (Control, C), while the other three groups were fed according to intermittent feeding regimes consisted of different number of cycles per day, each cycle consisted of feeding period (F) followed by fasting period (S). Chicks of the second group (G2) were fed in 2 cycles per day, each of 6 hrs feeding followed by 6 hrs fasting (6F: 6S); chicks of the third group (G3) were fed in three cycles per day, each of 4 hrs feeding followed by 4 hrs fasting (4F: 4S) and chicks of the fourth group (G4) were fed in six cycles per day, each of 2 hrs feeding followed by 2 hrs fasting (2F: 2S). In experiment 2, one hundred and twenty, oneday old Cobb chicks were equally distributed into four groups (each consisted of 3 replicates of 10 birds each). Chicks in the first group (G1) were exposed to continuous light/day (Control, C), while the other three groups were exposed to intermittent flash lighting regimens as follows: the second group (G2) was exposed to 2hrs contiuous light+1hr dark for 8 cycles per day (2CL: 1D); the third group (G3) was exposed to 2hrs continuous light+1hr flash light for 8 cycles per day (2CL: 1FL) and the fourth group (G4) exposed to 1hrs continuous light + 2hrs flash light for 8 cycles per day (1CL: 2FL). The results indicated that intermittent feeding and flash lighting significantly (P≤0.05) affected body weight, body weight gain, feed consumption, feed conversion ratio, and consequently economic efficiency. However, it had no significant effect (P≥0.05) on most carcass traits, meat quality, blood parameters, lymphoid organs and conformation lengths except liver and abdominal fat percentages, tenderness and juiciness of meat, plasma lipids value, percentages of spleen and thymus weight. According to the results of present study and economic evaluation, it could be concluded that, it is possible to use the intermittent feeding regimen of 2F:2S for six cycles/day and flash lighting regimen of 2CL: 1FL for 8 cycled/day in broiler management to improve growth and economic efficiency as well as to reduce abdominal fat without any adverse effect till marketing age with expected considerable saving in costs of feed and (electricity).

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Section: Introductionmentioning

confidence: 99%

Application of Intermittent Feeding and Flash Lighting Regimens in Broiler Chickens Management

Farghly

Makled

2015

Egyptian Journal of Nutrition and Feeds

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“…Similarly, antibody to NDV of ad libitum fed chickens declined with duration of stress (36) . H-L ratio and tonic immobility duration were higher at 41 d of age in broilers fed ad libitum than those FR for 4 h per day from 7 to 21 d and fed ad libitum thereafter (23) , and FR induced stress on WBC during only the FR period (37,38) .…”

Section: Resultsmentioning

confidence: 85%

Response of slow-growing chickens to feed restriction and effects on growth performance, blood constituents and immune markers

Attia

El-Hamid

Mustafa

et al. 2017

Rev. Mex. Cienc. Pecu.

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An experiment was conducted to study the response of a slow growing chickens breed "Sinai" to feed restriction (FR) and the effects on growth performance, blood constituents and immune markers using a total number of 60 unsexed 7-d-old chicks. Chickens were housed in battery brooders during d 1 to 35 of age and randomly distributed keeping similar initial body weight, in two FR treatment groups. During 0-6 d of age, chickens were fed ad libitum , a mash commercial diet. During d 7-14 of age, chickens were fed either 100 or 80 % of the daily amount of feed consumed by the control group during the previous day. From d 15 to d 35, chickens were fed ad libitum diets a mash commercial diet. At the end of the experiment, body weight gain on the FR regimen was significantly lower than that of the control group, but feed intake and feed conversion ratio (FCR) were not affected. In addition, red blood cells parameters and white blood cells traits were not negatively affected. However, hemagglutination inhibition titter for New castle disease virus, monocyte and total cholesterol were significantly decreased by FR regimen, but blood plasma albumin and immunoglobulin A significantly increased. In conclusion, slow growing chickens could tolerate 27.2 % FR during the 2 nd week of age without significant differences in feed intake and FCR for the whole period, and general health status and metabolic profiles indicating a compensatory growth during 15-35 d of age although growth was in favour to the unrestricted group. KEY WORDS: Feed restriction, Slow-growing chickens, Growth performance, Physiological traits, Immunity. RESUMENEl comportamiento productivo, constituyentes sanguíneos y marcadores inmunológicos se estudiaron en pollos de la raza SINAI de lento crecimiento bajo un régimen de restricción de alimento (RA). Se utilizaron 60 pollitos de peso similar desde la edad de 1 día hasta los 35 días. Se distribuyeron al azar en dos tratamientos de RA. De 0-6 días de edad, los animales se alimentaron con una mezcla comercial ad libitum . De 7 a 14 días de edad, se alimentaron con la misma dieta ya fuera al 100 o al 80 % de consumo de alimento diario. De 15 a 35 días de edad, todas las réplicas se alimentaron con la misma dieta ad libitum . Después de los 35 días, la ganancia de peso en el régimen RA fue significativamente más baja, a pesar de que la ingesta de alimento y la tasa de conversión alimenticia (TCA) no se vieron afectados. El título de inhibición de la hemaglutinación por el virus de la enfermedad de Newcastle, los monocitos y el colesterol total fueron significativamente más bajos en el tratamiento RA. Los valores de albúmina del plasma sanguíneo y de la inmunoglobulina A fueron más altos en el tratamiento RA. Los pollos de crecimiento lento toleraron una reducción del alimento del 27.2% durante la segunda semana de edad sin exhibir diferencia significativa en la ingesta del alimento y la TCA durante el tiempo de experimentación. A pesar de que el comportamiento productivo fue óptimo para el grupo control, e...

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“…They observed better conversion values in birds kept under restricted feeding compared to ad libitum fed birds and do not follow the findings of Balog et al (2000), Camacho et al (2004) and Boostani et al (2010) who reported reduced body weight and feed intake of 8 h/ day restricted birds. Aziz (2012) also found that weight gain, feed intake and feed conversion ration of restricted birds were lower than those of control ones. Different results were reported by Mehmood et al (2013) who found that the maximum feed intake was recorded in ad-libitum and 3 h fed birds than those of 1 or 2 h access to feed.…”

Section: Performance At 21 To 37 Days Oldmentioning

confidence: 85%

The effect of limiting feeding time by three and six hours per day during the starter period on broiler performance

Alkhair¹,

Musharaf²,

Hamid³

et al. 2017

Int. J. Livest. Prod.

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In a completely randomized design, one hundred and twenty one-day old (Arbor acres) broiler chicks were randomly distributed in three treatments, five replicates with eight chicks per a replicate. The treatments were: 24 h ad libitum feeding (A), B feed removal from 9:00 to 12:00 noon (3 fasting hours) and C feed removal from 9:00 to 3:00 pm (6 fasting hours). Feed restriction was applied from 8 to 28 days of age. The experiment lasted from 8 to 37 days of age. The results showed that fasting birds for three and six hours had significantly (p<0.05) no effect on body weight, weight gain, feed intake and feed conversion ratio at 37 days of age.

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Performance and Heterophil to Lymphocyte (H/L) Ratio Profile of Broiler Chickens Subjected to Feeding Time Restriction

Cited by 13 publications

References 7 publications

Application of Intermittent Feeding and Flash Lighting Regimens in Broiler Chickens Management

Application of Intermittent Feeding and Flash Lighting Regimens in Broiler Chickens Management

Response of slow-growing chickens to feed restriction and effects on growth performance, blood constituents and immune markers

The effect of limiting feeding time by three and six hours per day during the starter period on broiler performance

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