Effects of maternal and dietary vitamin A on growth performance, meat quality, antioxidant status, and immune function of offspring broilers

Wang, Yibing; Li, Long; Gou, Zhongyong; Fan, Qiuli; Lin, Xuhui; Ye, Jinling; Zhang, Chang; Jiang, Sufei

doi:10.1016/j.psj.2020.03.044

Cited by 20 publications

(24 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Birds were weighed at the beginning and end of each 3-wk growth phase on a per replicate basis. The final body weight, average daily gain, average daily feed intake and feed/gain ratio were calculated as previously described [ 13 ].…”

Section: Methodsmentioning

confidence: 99%

“…Breast muscles (the whole left pectoralis major ) of the chosen birds were collected and kept at 4 °C. Shear force 45 min post-mortem, and drip loss 24 h post-mortem was determined as previously described [ 13 ]. In brief, muscle samples were cut, weighed and placed in a plastic bag filled with air in 4 °C for 24 h. The drip loss was determined: drip loss = (weight 24h − weight 0h )/weight 24h * 100% [ 13 ].…”

Section: Methodsmentioning

confidence: 99%

“…The muscles were cooked to an internal temperature of 70 °C. After cooling to room temperature, segments 1 cm 2 were cut perpendicular to the fiber orientation of the muscle then 10 sections about 3 cm thick were cut parallel to the fiber orientation to determine the shear force [ 13 ].…”

Section: Methodsmentioning

confidence: 99%

“…Breast muscles (the whole left pectoralis major) of the chosen birds were collected and kept at 4 • C. Shear force 45 min post-mortem, and drip loss 24 h post-mortem was determined as previously described [13]. In brief, muscle samples were cut, weighed and placed in a plastic bag filled with air in 4 • C for 24 h. The drip loss was determined: drip loss = (weight 24h − weight 0h )/weight 24h * 100% [13]. The muscles were cooked to an internal temperature of 70 • C. After cooling to room temperature, segments 1 cm 2 were cut perpendicular to the fiber orientation of the muscle then 10 sections about 3 cm thick were cut parallel to the fiber orientation to determine the shear force [13].…”

Section: Determination Of Meat Qualitymentioning

confidence: 99%

“…Premix for three phases was formulated according to the nutritional levels (except Mn) previously described[13], moreover, premix provided 15,000 IU/kg (the starter and grower phases) and 10,000 IU/kg (the finisher phase) vitamin A of diets 2. Nutrient levels were calculated values 3.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Optimal Level of Supplemental Manganese for Yellow-Feathered Broilers during the Growth Phase

Wang

Gou

Lin

et al. 2021

Animals

Self Cite

View full text Add to dashboard Cite

This experiment investigated the effect of an optimized supplemental dietary manganese (Mn) on growth performance, tibial characteristics, immune function and meat quality, of yellow-feathered broilers. In three rearing periods, birds were fed for 21-d periods, from d 1 (starter), d 22 (grower) and d 43 (finisher), respectively, with basal diets (containing 16, 17, and 14 mg/kg analyzed Mn, respectively) supplemented with 0, 20, 40, 60, 80, 100, 120 and 140 mg/kg Mn. For starter phase broilers, supplemental manganese affected feed to gain ratio (F/G), and the minimum value was observed with 120 mg/kg manganese. During the grower phase, ADG increased quadratically (p < 0.05) with supplemental Mn and was maximal with 54 mg/kg additional manganese estimated using the regression equation. There was no influence of supplemental manganese on growth performance of broilers during the finisher phase (p > 0.05). The thymic relative weight of broilers were linearly (p < 0.05) and quadratically (p < 0.05) increased with supplemental Mn and maxima were obtained with 95 and 110 mg/kg additional Mn at 42 d and 63 d. The bone density of the tibia in broilers at d 21, 42 and 63 were increased quadratically (p < 0.05) by supplemental Mn, and optimal supplementation for the three phases was 52, 60 and 68 mg/kg, respectively. The weight, diameter, breaking strength and bone density of the tibia of 63-d broilers were influenced (p < 0.05) by supplemental manganese. The lightness (L*) value (linear, p < 0.05) and yellowness (b*) value (p < 0.05) of the breast muscle were decreased by dietary manganese supplementation, and the optimal supplementation, based on L*, was 86 mg/kg. In conclusion, supplemental Mn affected the growth performance, thymic relative weight, tibial characteristics, and the meat color of yellow-feathered broilers. From the quadratic regressions, the optimal supplementation of yellow-feathered broilers at the starter, grower and finisher phases to achieve the best performance was 52, 60, and 68 mg/kg, respectively.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%