Early feed restriction in broilers. II: Body composition and nutrient gain

Butzen, F. M.; Vieira, M. M.; Kessler, Alexandre de Mello; Aristimunha, P. C.; Marx, Fábio Ritter; Bockor, Luciane; Ribeiro, Aml

doi:10.3382/japr/pfv026

Cited by 10 publications

(5 citation statements)

References 20 publications

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“…However, many reports have shown that undersupply of nutrients could retard growth performance and lead to metabolic disorders (Bregendahl et al., 2002; Kiess et al., 2013). For example, early restriction of nutrients may result in subsequent retarded growth rate of broilers (Butzen et al., 2015). In addition, the birds will over consume to meet their nutrient requirements, leading to increased carcass fat accumulation and feed conversion ratio when limited amounts of nutrients are supplemented (Thomas et al., 1978).…”

Section: Introductionmentioning

confidence: 99%

Effects of lysophospholipid supplementation to reduced energy, crude protein, and amino acid diets on growth performance, nutrient digestibility, and blood profiles in broiler chickens

Boontiam

Hyun

Jung³

et al. 2019

Poultry Science

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Two experiments investigated the effects of lysophospholipid (LPL) supplementation on low-energy and low-nitrogenous diets for broilers. A total of 300 one-day-old male chicks (Ross 308) was allotted to 5 treatments in a completely randomized design. Each group consisted of 6 replicates with 10 birds each. Experimental diet I included positive control (PC) having 3,025 (starter), 3,150 (grower), and 3,200 kcal/kg (finisher) of ME; negative control (NC) was 150 kcal/kg of ME lower than PC, and LPL-05, LPL-10, and LPL-15 treatments were NC + 0.05%, 0.10%, and 0.15% of LPL supplementation, respectively. Experimental diet II included positive control (PC) having a formulated amount of crude protein including Lys and Met + Cys that met the Ross 308 standards; negative control (NC) was 4% lower CP and AA than PC; other treatments were supplemented with LPL at 0.05% (LPL-05), 0.10% (LPL-10), and 0.15% (LPL-15) into the NC, respectively. Experiment I showed that growth performance linearly increased as the LPL inclusion increased (P < 0.001). Broilers fed LPL-10 and LPL-15 increased digestibility of DM (P < 0.05), crude protein (P < 0.01), and total amino acids (P < 0.01) compared to NC. Serum glucose (P < 0.01) and high-density lipoprotein (P < 0.05) concentrations were greater in groups fed LPL-10 than those fed PC. Furthermore, leg muscle increased in birds fed LPL-10 compared with NC (P < 0.05). Experiment II observed a linear response to LPL supplementation in the whole period, in terms of body weight gain (P = 0.015) and feed conversion ratio (P = 0.027). Feeding of 0.15% LPL had promising effects on digestibility of crude protein and ether extract compared with NC (P < 0.01 and P < 0.05, respectively). Overall, LPL could be considered as a feed additive to reduced energy (−150 kcal/kg) or nitrogenous diets (−5%) in order to improve growth performance and nutrient digestibility without adverse effects on lymphoid organs and hepatic enzyme of broilers.

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Section: Introductionmentioning

confidence: 99%

Effects of lysophospholipid supplementation to reduced energy, crude protein, and amino acid diets on growth performance, nutrient digestibility, and blood profiles in broiler chickens

Boontiam

Hyun

Jung³

et al. 2019

Poultry Science

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“…They found that restriction of broiler feed for 4 h/day throughout 1 to 21 day-old resulted in no statistical differences among the final body weight of the experimental groups at 63 days of age. Extensive studies in poultry, particularly in broiler chickens, demonstrated inconsistency in the compensatory growth due to strain and age of broilers, FR duration and severity of FR during the post-FR period (Butzen et al, 2015). In the literature, FR was reported to improve feed utilization and decrease the fat deposition and leg problems in broiler chickens (Attia et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Effect of Early Feed Restriction on Broiler Performance, Blood and Carcass Parameters Under Summer Conditions.

Sherif

Mansour

2019

Egyptian Journal of Nutrition and Feeds

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his research work was designed to study early feed restriction effects on broiler production during Egyptian summer. One hundred ninety eight unsexed Cobb-500 broiler chickens were divided to six experimental treatments with three equal replications. All chicks were free fed starter diet during the first week. In the second week, the chicks in the control group were fed the starter diet ad libitum, but feed intake of the other experimental groups were restricted at levels of 20, 25, 30, 35 and 40%, respectively from the feed intake of the control group. At 2 weeks of age, one bird from each replicate was sacrificed to obtain blood samples. All the experimental chicks were free fed basal grower diet from 14 to 42 days-old. Broiler performance was evaluated by live weight, feed consumed and feed conversion. Carcass parameters and some blood constituents were also measured. The current results showed that feed restriction improved the marketing live body weight, feed utilization and economical efficiency of treated broiler chicks, with no negative effect on either carcass traits or blood parameters. It could be concluded that early feed restriction during the second week of life up to 35% of ad libitum feeding can enhance the marketing weight and improve the feed conversion of broilers as compared to the control treatment under summer conditions in Egypt.

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“…In general, compensatory growth was expected after restricted feeding to achieve normal body weight at marketing or slaughter age. In line with Butzen et al (2013Butzen et al ( , 2015, broilers with a time restriction of eight hours/day from age 8 to 16 days could recover their final body weight at 42 days of age. Furthermore, according to Shafiei et al (2018), broilers subjected to feed withdrawal for 8 and 10 hours per day from 8 to 14 days of age were able to compensate for weight loss at 42 days of age.…”

Section: Immune Organsmentioning

confidence: 80%

The Effects of Feeding Time Restriction on Carcass Yield Characteristics, Gastrointestinal and Immune Organs of Broiler

Azis¹,

Afriani²

2023

AAVS

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A study was conducted to investigate the effect of the feeding time restriction with two cycles free access to feed 2 hours/day and 4 hours/day on the body weight of broiler, carcasses characteristics, gastrointestinal tract and immune organs at the end feed restricted and re-alimentation period. This research used two hundred of seven days-old unsexed commercial strain Lohmann of broiler chicken. The experimental design was completely randomized, with 5 treatments and 4 replications. As a control, chickens were fed ad libitum (FR-0); chickens were given free access to feed during two periods of 2 hours from age 7-14 days (FR-1) and age 7-21 days (FR-2); chickens were given free ac cess to feed during two periods of 4 hours from age 7-14 days (FR-3) and age 7-21 days (FR-4). Body weight, carcass yield, breast, and tight muscle weight of broilers subjected to feed time restriction were significantly lower than broilers fed ad libitum at the end of the feed restriction. The empty of crop and gizzard weight were significantly higher than the broilers fed ad libitum at age 14 and 21 days. The weight of bursa Fabricious increased (P<0.05) with the feeding time restriction at age 14 days. However, there were not significant different in all of parameter at the end re-alimentation period (42 days). Based on our findings, feeding time restriction in broilers by 4 hours/day had no negative effect on body weight at slaughter age, carcass characteristics, or gastrointestinal and immune organs.

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Early feed restriction in broilers. II: Body composition and nutrient gain

Cited by 10 publications

References 20 publications

Effects of lysophospholipid supplementation to reduced energy, crude protein, and amino acid diets on growth performance, nutrient digestibility, and blood profiles in broiler chickens

Effects of lysophospholipid supplementation to reduced energy, crude protein, and amino acid diets on growth performance, nutrient digestibility, and blood profiles in broiler chickens

Effect of Early Feed Restriction on Broiler Performance, Blood and Carcass Parameters Under Summer Conditions.

The Effects of Feeding Time Restriction on Carcass Yield Characteristics, Gastrointestinal and Immune Organs of Broiler

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