scholarly journals Effects of dietary vitamin E supplementation on laying performance, hatchability, and antioxidant status in molted broiler breeder hens

2021 ◽  
pp. 100184
Author(s):  
J. Yang ◽  
X.M. Ding ◽  
S.P. Bai ◽  
J.P. Wang ◽  
Q.F. Zeng ◽  
...  
Keyword(s):  
Vitamin E ◽  
Antioxidant Status ◽  
Dietary Vitamin ◽  
Broiler Breeder ◽  
Breeder Hens ◽  
Laying Performance ◽  
Broiler Breeder Hens ◽  
Vitamin E Supplementation

scholarly journals Modelling the egg components and laying patterns of broiler breeder hens

2016 ◽  
Vol 56 (7) ◽  
pp. 1091 ◽  
Author(s):  
Nayara T. Ferreira ◽  
Nilva K. Sakomura ◽  
Juliano César de Paula Dorigam ◽  
Edney Pereira da Silva ◽  
Robert M. Gous
Keyword(s):  
Egg Production ◽  
Feeding Strategy ◽  
Simulated Data ◽  
Egg Yolk ◽  
Broiler Breeders ◽  
Broiler Breeder ◽  
Reproductive Process ◽  
Breeder Hens ◽  
Laying Performance ◽  
Broiler Breeder Hens

There is scant information about the reproductive process in broiler breeders, with which to develop a feeding strategy that will be economically optimal for these birds. This study aimed to model the egg production of a flock of broiler breeder hens, using non-isometric equations. The number of eggs produced by 60 broiler breeder hens aged 24–60 weeks was monitored, as was the weight of these eggs and the weights of the components, yolk, albumen and shell. Oviposition sequences and the number and length of pauses between sequences were analysed. Non-isometric functions were applied to predict the weight of the egg; yolk weight was predicted from the age of the hen, while albumen and shell weights were predicted from yolk weight; and egg weight was obtained by summing the component weights. The incidence of soft-shelled and double-yolk eggs was also determined. Yolk weight (YW, g) can be described as YW = 18.03 × (1 – e–0.015 × (t – 103.4)) × e(0.001 × t), where t is the age of the bird (days). The weights of albumen (AW) and shell (SW) were based on YW predictions as follows: AW = 14.38 × YW0.375 and SW = 0.358 × (YW + AW)0.687. The rate of double-yolk egg (DY) production is described by DY = 2.28 × e(0.209 × TFE), and the rate of soft-shelled egg (SS) production by SS = 1.126 + 0.148/(1 – 0.024 × TFE) – 0.056 × TFE, as a function of time from first egg (TFE). On the basis of the results obtained, the model developed here is an accurate reflection of the changes that occur in the number of eggs produced by broiler breeders, as well as in the egg itself and in its components over the entire laying period. This model can thus be used in predicting the nutrient requirements of individual broiler breeder hens, which, when combined with simulated data from a large number of individuals, will accurately describe the laying performance of a flock of broiler breeders.

scholarly journals Effects of dietary fructo-oligosaccharides on laying performance and serum biochemical parameters of yellow broiler breeder hens

2019 ◽  
Vol 131 ◽  
pp. 01081
Author(s):  
Zhao Feng ◽  
Zhongsheng Xia
Keyword(s):  
Serum Levels ◽  
Control Group ◽  
Broiler Breeder ◽  
Breeder Hens ◽  
Dietary Nutrients ◽  
Laying Performance ◽  
Broiler Breeder Hens ◽  
Serum Biochemical ◽  
Biochemical Indices ◽  
Better Than

24-week-old local yellow broiler breeder hens were selected to study the effects of dietary fructo-oligosaccharides(FOS)or antibiotics(bacitracin zinc)on laying performance, serum biochemical indices and dietary mutrient metabolizability. The results showed that: compared with the control group, dietary FOS supplemented with 0.2%, 0.4%, 0.6% could increase the laying rate, average egg weight, feed egg ratio, eggs percent of pass, fertility rate and hatchability of qualified egg, and reduce serum levels of total cholesterol and triglyceride, and improve the apparent metabolizability of dietary nutrients. The effects of diet supplemented with FOS was better than those of diet supplement with 0.05% antibiotics.It was suggested that the appropriate additive amount of FOS in diets for yellow broiler breeder hens should be 0.4%.

scholarly journals The Effects of Broiler Breeder Dietary Vitamin E and Egg Storage Time on the Quality of Eggs and Newly Hatched Chicks

Animals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1409
Author(s):  
Jun Yang ◽  
Xuemei Ding ◽  
Shiping Bai ◽  
Jianping Wang ◽  
Qiufeng Zeng ◽  
...  
Keyword(s):  
Vitamin E ◽  
Antioxidant Status ◽  
Storage Time ◽  
Yolk Sac ◽  
Embryonic Mortality ◽  
Dietary Vitamin ◽  
Broiler Breeder ◽  
Egg Storage ◽  
Mda Content ◽  
Egg Yolks

This study was conducted to investigate the effects of broiler breeder dietary vitamin E and egg storage time on the egg characteristics, hatchability, and antioxidant status of the egg yolks and newly hatched chicks. A total of 512 71-week-old Ross 308 breeder hens were fed the same basic diets containing 6 or 100 mg/kg vitamin E for 12 weeks. During this time, a total of 1532, 1464, and 1316 eggs were independently collected at weeks 8, 10, and 12, respectively, and subsequently stored for 0 or 14 d before hatching. The outcomes from three trials showed that prolonged egg storage time (14 vs. 0 d) negatively affected (p < 0.05) the egg characteristics, hatchability traits, and the yolk total antioxidant capacity (T-AOC) (p < 0.05). Chicks derived from the stored eggs exhibited higher malonaldehyde (MDA) and T-AOC in the serum and yolk sac (p < 0.05). Broiler breeder dietary vitamin E (100 vs. 6 mg/kg) increased (p < 0.05) the hatchability and the antioxidant status of the yolks as indicated by a higher α-tocopherol content and T-AOC and lower MDA level (p < 0.05). The supplementation of vitamin E also remarkably increased (p < 0.05) the total superoxide dismutase (T-SOD) activity (yolk sac, weeks 8 and 12) and T-AOC (serum, weeks 8, 10, and 12; yolk sac, weeks 8 and 12) and decreased (p < 0.05) the MDA content of chicks (yolk sac, week 10; serum, week 12). Interactions (p < 0.05) were found between the broiler breeder dietary vitamin E and egg storage time on the hatchability and antioxidant status of chick tissues. Broiler breeder dietary vitamin E (100 vs. 6 mg/kg) increased (p < 0.05) the hatchability and the T-AOC in the serum and liver of chicks, and decreased (p < 0.05) the early embryonic mortality and the MDA content in the yolk sacs of chicks derived from eggs stored for 14 d but not for 0 d. In conclusion, prolonged egg storage time (14 vs. 0 d) increased the embryonic mortality, decreased the hatchability, and impaired the antioxidant status of egg yolks and newly hatched chicks, while the addition of broiler breeder dietary vitamin E (100 vs. 6 mg/kg) could partly relieve these adverse impacts induced by long-term egg storage.

scholarly journals Effects of dietary L-arginine on laying performance and anti-oxidant capacity of broiler breeder hens, eggs, and offspring during the late laying period

2015 ◽  
Vol 94 (12) ◽  
pp. 2938-2943 ◽  
Author(s):  
Xiaoxue Duan ◽  
Feng Li ◽  
Shaoyang Mou ◽  
Jiawei Feng ◽  
Peifeng Liu ◽  
...  
Keyword(s):  
Broiler Breeder ◽  
Breeder Hens ◽  
Laying Performance ◽  
Broiler Breeder Hens ◽  
Anti Oxidant

scholarly journals Combination of Quercetin and Vitamin E Supplementation Promotes Yolk Precursor Synthesis and Follicle Development in Aging Breeder Hens via Liver–Blood–Ovary Signal Axis

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1915
Author(s):  
Felix Kwame Amevor ◽  
Zhifu Cui ◽  
Xiaxia Du ◽  
Zifan Ning ◽  
Gang Shu ◽  
...  
Keyword(s):  
Vitamin E ◽  
Antioxidant Capacity ◽  
Liver Lipid ◽  
Basal Diet ◽  
Follicle Development ◽  
Protective Effects ◽  
Broiler Breeder ◽  
Breeder Hens ◽  
Precursor Synthesis ◽  
Broiler Breeder Hens

The fertility of female animals is negatively correlated with increasing chronological age. In aging broiler breeder hens, there is a decline in the functionality of the ovary and liver accompanied by hormonal or endocrine changes, a reduction in antioxidant capacity, and a decrease in folliculogenesis. Therefore, improving the reproductive function in aging breeder hens using dietary strategies is of great concern to the poultry breeder. This study evaluated the capacity of dietary quercetin (Q), vitamin E (VE), and their combination (Q + VE) to promote follicle development and attenuate organ inflammation by improving the antioxidant capacity of aging breeder hens. In this study, 400 broiler breeder hens (Tianfu broilers breeder hens, 435 days old) were allotted into four groups (100 birds each) with four replicates each (25 birds each). They were fed diets containing Q (0.4 g/kg), VE (0.2 g/kg), Q + VE (0.4 g/kg + 0.2 g/kg), and a basal diet for 10 weeks. The results showed that Q + VE improved the organ characteristics (p < 0.05), and also that Q + VE showed protective effects on the liver against injury, as well as increasing the antioxidant capacity of the liver, serum, and ovary (p < 0.05). Furthermore, liver lipid synthesis was increased remarkably, as indicated by the changes in triglyceride levels in hens fed Q + VE (p < 0.05). Levels of E2, FSH, and LH, their receptors, and mRNAs related to yolk precursor synthesis were increased by the Q + VE (p < 0.05). Therefore, the combination of quercetin and vitamin E synergistically promotes and regulates the transportation and exchange of synthetic substances among the liver–blood–ovary alliances to ensure the synchronous development and functional coordination between the liver and ovary in aging breeder hens.

scholarly journals Impact of Dietary Supra-Nutritional Levels of Vitamins A and E on Fertility Traits of Broiler Breeder Hens in Late Production Phase

Agriculture ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 149
Author(s):  
Mehrdad Yaripour ◽  
Alireza Seidavi ◽  
Mohammad Dadashbeiki ◽  
Vito Laudadio ◽  
Vincenzo Tufarelli ◽  
...  
Keyword(s):  
Vitamin E ◽  
Vitamin A ◽  
Basal Diet ◽  
Broiler Breeder ◽  
Production Phase ◽  
Breeder Hens ◽  
Broiler Breeder Hens ◽  
Four Levels ◽  
Dietary Treatments ◽  
Fertility Traits

This study aimed to evaluate the effect of dietary supplementation with supra-nutritional levels of vitamins A and E on fertility and productivity traits of Ross-308 broiler breeder hens during the late production phase. The trial was conducted for nine weeks, from 61 to 69 weeks of age, and designed to test four levels of vitamin A (100, 125, 150 and 200% above the Ross catalogue recommendations) and four levels of vitamin E (100, 200, 300 and 400% above Ross catalogue instructions), maintaining constant the other rearing conditions. Vitamins were combined in 16 treatments, with four replicates per treatment each including seven females, and one rooster broiler was used in every two replicates. A total of 448 hens and 32 roosters were used in the experiment. Fertility parameters were weekly evaluated. According to the results, egg-related parameters (number and weight of eggs, non-conform eggs and hatchability) were not affected by treatment, but dietary treatments increased and extended the hens’ productivity for an additional six weeks in most experimental groups. The chick-related parameters (number and weight of produced chicks) and chick yield differed significantly among groups (p < 0.05). The best economic index was found in birds fed basal-diet plus 100% of vitamin A and 200% of vitamin E. In conclusion, the present study showed that a combination of dietary supra-nutritional levels of vitamins A and E allowed to extend the laying period and to reduce the decline of fertility in older breeder hens at the end of the laying stage; in particular, among the 16 tested treatments, feeding of supra-nutritional level of 100% vitamin A and 200% vitamin E lead to the best results.

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