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1. Correlation between footpad lesions and systemic bacterial infections in broiler breeders

Author:
Thøfner, Ida Cecilie Naundrup; Poulsen, Louise Ladefoged; Bisgaard, Magne; Christensen, Henrik; Olsen, Rikke Heidemann; Christensen, Jens Peter
Source:
Veterinary research 2019 v.50 no.1 pp. 38
ISSN:
1297-9716
Subject:
broiler breeders,   etc   ; Gram-positive bacteria; animal welfare; bacterial infections; dermatitis; feet; lesions (animal); pain;     Show all 8 Subjects
Abstract:
... Footpad lesions are an important factor in evaluation of animal welfare in broilers regulated by law; however, no legal requirements have been set for the parent birds. Nevertheless, the present study confirms that foot health in broiler breeders declines significantly with increasing age, thus potentially impairing the animal welfare due to pain and discomfort from footpad dermatitis. Furthermore ...
DOI:
10.1186/s13567-019-0657-8

2. Energy partitioning at low temperatures in broiler breeders

Author:
Nonis, M. K.; Gous, R. M.
Source:
Animal production science 2019 v.59 no.3 pp. 435-440
ISSN:
1836-0939
Subject:
broiler breeders,   etc   ; ambient temperature; diet; egg weight; eggs; energy; hens; metabolizable energy; nutrients; weight gain;     Show all 10 Subjects
Abstract:
... The objective of the present study was to investigate how broiler breeder hens partition dietary metabolisable energy (ME) at low temperatures. Performance of caged broiler breeders fed equal quantities of essential nutrients (other than energy) was measured in six environmental chambers, with the temperature in each chamber being kept constant at 10°C, 12.5°C, 15°C (two chambers), 17.5°C or 20°C ...
DOI:
10.1071/AN17605

3. Effects of dietary curcumin supplementation on seminal quality indices and fertility rate in broiler breeder roosters

Author:
Kazemizadeh, A.; Zare Shahneh, A.; Zeinoaldini, S.; Yousefi, A. R.; Mehrabani Yeganeh, H.; Ansari Pirsaraei, Z.; Akhlaghi, A.
Source:
British poultry science 2019 v.60 no.3 pp. 256-264
ISSN:
1466-1799
Subject:
broiler breeders,   etc   ; antioxidants; body weight; curcumin; dietary supplements; malondialdehyde; plasma membrane; roosters; semen quality; spermatogenesis; spermatozoa; turmeric;     Show all 12 Subjects
Abstract:
... 1. Decreased semen quality is an underlying contributor to age-related subfertility in broiler breeder roosters. This study investigated the effects of dietary curcumin (derived from turmeric) supplementation as an antioxidant source on semen quality and fertility in broiler breeder roosters. 2. Twenty-eight Ross 308 roosters were randomly allotted to four groups with seven birds in each and were ...
DOI:
10.1080/00071668.2019.1571165

4. The effect of coenzyme Q10 on rooster semen preservation in cooling condition

Author:
Sharideh, Hossein; Zhandi, Mahdi; Zenioaldini, Saeed; Zaghari, Mojtaba; Sadeghi, Mostafa
Source:
Theriogenology 2019 v.129 pp. 103-109
ISSN:
0093-691X
Subject:
broiler breeders,   etc   ; antioxidants; coenzyme Q10; cooling; liquids; oxidative stress; plasma membrane; roosters; semen extenders; semen quality; sperm quality; storage temperature;     Show all 12 Subjects
Abstract:
... Oxidative stress has been known as a significant cause of the lower fertility rates correlated with liquid stored rooster semen. The effect of coenzyme Q10 (CoQ10), as a powerful antioxidant, seems be beneficial on semen storage of broiler breeder roosters at the cooled condition. Therefore, two experiments were performed to assess the effect of CoQ10 supplemented semen extender on sperm quality p ...
DOI:
10.1016/j.theriogenology.2019.02.028

5. An improvement in productive and reproductive performance of aged broiler breeder hens by dietary supplementation of organic selenium

Author:
Emamverdi, Mojtaba; Zare-Shahneh, Ahmad; Zhandi, Mahdi; Zaghari, Mojtaba; Minai-Tehrani, Dariush; Khodaei-Motlagh, Mahdi
Source:
Theriogenology 2019 v.126 pp. 279-285
ISSN:
0093-691X
Subject:
broiler breeders,   etc   ; chicks; dietary supplements; egg weight; embryonic mortality; hens; mortality; reproductive performance; selenium; sodium selenite; yeasts;     Show all 11 Subjects
Abstract:
... This study was conducted to determine the optimum level of home-made selenium-enriched yeast (SeY) in the diet of broiler breeder hens and to compare the effects of this product with sodium selenite (SS) or Selemax (SM) on their productive and reproductive performance. A total of 150 broiler breeder hens were divided to six groups and hens in each group were received a basal diet containing no sel ...
DOI:
10.1016/j.theriogenology.2018.12.001

6. Can roosters′ head ornaments serve as a criterion for their selection as a valuable reproducers?

Author:
Łukaszewicz, Ewa; Bagińska, Paulina; Lasoń, Martyna
Source:
Annals of animal science 2017 v.17 no.3 pp. 747-755
ISSN:
2300-8733
Subject:
broiler breeders,   etc   ; asymmetry; head; roosters; testes; wattles;     Show all 6 Subjects
Abstract:
... It is widely practiced that before mating the roosters are selected as reproducers mainly on the basis of head ornaments appearance. Relationship between males secondary sexual traits (comb and wattles) with testes size, as all of them are testosterone-dependent traits, were examined. Measurements of head ornaments and testes from two broiler breeder lines and two laying lines of chicken were corr ...
DOI:
10.1515/aoas-2016-0081

7. Consequences of lighting programme in rearing phase and its effects on amino acid requirements in a broiler breeders flock in egg production

Author:
Ferreira, Nayara Tavares; Sakomura, Nilva Kazue; Gous, Robert Mervyn
Source:
Animal feed science and technology 2019 v.253 pp. 153-165
ISSN:
0377-8401
Subject:
broiler breeders,   etc   ; age at first egg; amino acid requirements; body composition; body weight; decision making; egg production; eggs; equations; flocks; hens; lighting; models; oviducts; oviposition; rearing; sexual maturity;     Show all 17 Subjects
Abstract:
... The aim of this study was to model the changes in the egg production and requirements of broiler breeder hens flock, in response to different lighting programmes during the rearing period. The growth of each individual in a population up to the time when its first egg is laid was simulated and then averaged to obtain the mean response of the population to different lighting programmes. The informa ...
DOI:
10.1016/j.anifeedsci.2019.05.019

8. In ovo injection of ascorbic acid and higher incubation temperature modulate blood parameters in response to heat exposure in broilers

Author:
Sgavioli, S.; De Almeida, V. R.; Matos Júnior, J. B.; Zanirato, G. L.; Borges, L. L.; Boleli, I. C.
Source:
British poultry science 2019 v.60 no.3 pp. 279-287
ISSN:
1466-1799
Subject:
broiler breeders,   etc   ; alkalosis; ascorbic acid; basophils; blood pH; calcium; carbon dioxide; chicks; cold; egg incubation; eggs; eosinophilia; glucose; heat; hematocrit; hemoglobin; males; oxygen; rearing; temperature;     Show all 20 Subjects
Abstract:
... 1. This study analysed whether in ovo injection of ascorbic acid before incubation and at high incubation temperature influenced blood characteristics and performance in broilers reared in different temperature conditions. 2. A total of 3,000 fertile eggs from broiler breeders (Cobb®) were randomly divided into three incubation treatments: no ascorbic acid injection and egg incubation at 37.5°C (c ...
DOI:
10.1080/00071668.2019.1593946

9. Dietary Guanidinoacetic acid modulates testicular histology and expression of c-Kit and STRA8 genes in roosters

Author:
Nasirikhah, Ali; Zhandi, Mahdi; Shakeri, Malak; Sadeghi, Mostafa; Ansari, Mahdi; Deldar, Hamid; Yousefi, Ali Reza
Source:
Theriogenology 2019 v.130 pp. 140-145
ISSN:
0093-691X
Subject:
broiler breeders,   etc   ; Leydig cells; antioxidant activity; blood vessels; dietary supplements; epithelium; flocks; gene expression; genes; histology; renewable energy sources; roosters; semen quality; seminiferous tubules; spermatogonia;     Show all 15 Subjects
Abstract:
... Decline in semen quality is considered as a major contributing factor in age-related subfertility of broiler breeder flocks. This study was aimed to investigate the effect of dietary supplementation of Guanidinoacetic acid (GAA), as an alternative energy source along with antioxidant potential, on testicular histology and relative gene expression of some spermatogonial markers (c-Kit and STRA8) in ...
DOI:
10.1016/j.theriogenology.2019.03.006

10. Dietary supplementation with flaxseed oil as source of Omega-3 fatty acids improves seminal quality and reproductive performance in aged broiler breeder roosters

Author:
Zanussi, Hossein Pasha; Shariatmadari, Farid; Sharafi, Mohsen; Ahmadi, Hamed
Source:
Theriogenology 2019 v.130 pp. 41-48
ISSN:
0093-691X
Subject:
broiler breeders,   etc   ; artificial insemination; dietary supplements; docosahexaenoic acid; flax; linseed oil; lipid peroxidation; omega-3 fatty acids; reproductive performance; roosters; semen; sperm concentration; spermatozoa; testosterone; viability; vitamin E;     Show all 16 Subjects
Abstract:
... Reproductive performance in aged broiler breeder roosters is not desirable. The purpose of this study was to assess the effects of dietary flaxseed oil and vitamin E on the semen parameters, hormonal profiles, fatty acid analysis of sperm, and fertility performance of aged roosters. Twenty four roosters were assigned into four treatments and received their diets as following: 1) basal diet as cont ...
DOI:
10.1016/j.theriogenology.2019.02.030

11. Quercetin attenuates H2O2‐induced toxicity of rooster semen during liquid storage at 4°C

Author:
Ghaniei, Abolfazl; Eslami, Mohsen; Zadeh Hashem, Elham; Rezapour, Reza; Talebi, Alireza
Source:
Journal of animal physiology and animal nutrition 2019 v.103 no.3 pp. 713-722
ISSN:
0931-2439
Subject:
broiler breeders,   etc   ; antioxidant activity; cold; enzyme activity; hydrogen peroxide; lipids; liquids; malondialdehyde; massage; nitric oxide; protective effect; quercetin; roosters; semen; solvents; spermatozoa; storage temperature; superoxide dismutase; toxicity;     Show all 19 Subjects
Abstract:
... Current study was carried out to examine the protective effects of quercetin against toxicity induced by hydrogen peroxide in rooster semen in vitro. Semen samples were collected from ten roosters (Ross 308 broiler breeder males, 32 weeks old) twice a week by abdominal massage method. Samples with ≥70% progressive motility were selected, pooled, diluted and used for the study. Experimental groups ...
DOI:
10.1111/jpn.13056

12. Effects of Different Forms and Levels of Selenomethionine on Productive Performance and Antioxidant Status of Broiler Breeders and Its Offspring

Author:
Zhao, Ruoxi; Li, Kaixuan; Wang, Jiangshui; Wang, Yongxia; Wu, Rujuan; Zhan, Xiuan
Source:
Biological trace element research 2019 v.188 no.2 pp. 478-484
ISSN:
0163-4984
Subject:
broiler breeders,   etc   ; antioxidant activity; antioxidants; blood serum; chicks; diet; egg weight; eggs; feed intake; glutathione peroxidase; kidneys; liver; malondialdehyde; muscles; pancreas; progeny; selenomethionine; tissues;     Show all 18 Subjects
Abstract:
... This study was conducted to investigate the effects of different selenomethionine (SM) forms and levels on productive performance and antioxidant status of broiler breeders and its offspring. Four hundred eighty 48-week-old Lingnan Yellow broiler breeders were randomly divided into four groups, provided basal diet with 0.15 or 0.30 mg/kg Se coming from two SM forms of DL-SM and L-SM. The experimen ...
DOI:
10.1007/s12011-018-1430-y

13. Avian hepatitis E virus is widespread among chickens in Poland and belongs to genotype 2

Author:
Matczuk, Anna Karolina; Ćwiek, Katarzyna; Wieliczko, Alina
Source:
Archives of virology 2019 v.164 no.2 pp. 595-599
ISSN:
0304-8608
Subject:
broiler breeders,   etc   ; Avian hepatitis E virus; antibodies; blood serum; flocks; genotype; laying hens; liver; phylogeny; serology; seroprevalence; spleen; viruses; Central European region; Poland;     Show all 15 Subjects
Abstract:
... Big liver and spleen disease, caused by avian hepatitis E virus, has been reported in Poland, but the prevalence of the virus has not yet been investigated. In this study, 1034 serum samples from 57 breeder broiler and laying hen flocks were screened for the presence of anti-aHEV antibodies. In a random serology study, 56.1% of flocks were positive. Seroprevalence was higher in laying hen flocks t ...
DOI:
10.1007/s00705-018-4089-y

14. TGF-β4 and HSP70 responses in breeder hens treated with thyroxine

Author:
Saemi, F.; Zare Shahneh, A.; Zhandi, M.; Akhlaghi, A.; Ansari Pirsaraei, Z.
Source:
Animal reproduction science 2018 v.198 pp. 82-89
ISSN:
0378-4320
Subject:
broiler breeders,   etc   ; gene expression; genes; hens; messenger RNA; oral administration; spermatozoa; thyroxine;     Show all 8 Subjects
Abstract:
... A hypothesis was tested that long-term administration of thyroxine (T4) in broiler breeder hens would affect fertility, sperm penetration rate, and the duration of fertility. Relative abundance of oviductal TGF-β4 and HSP70 mRNA was determined to ascertain whether T4 treatment affected these genes, and modulated the sustained storage of spermatozoa within the uterovaginal sperm storage tubules of ...
DOI:
10.1016/j.anireprosci.2018.09.004

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

Author:
Yaripour, Mehrdad; Seidavi, Alireza; Dadashbeiki, Mohammad; Laudadio, Vito; Tufarelli, Vincenzo; Ragni, Marco; Payan-Carreira, Rita
Source:
Agriculture 2018 v.8 no.10
ISSN:
2077-0472
Subject:
broiler breeders,   etc   ; chicks; dietary supplements; eggs; hens; rearing; roosters; vitamin A; vitamin E;     Show all 9 Subjects
Abstract:
... 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) ...
DOI:
10.3390/agriculture8100149

16. Aggression and social rank fluctuations in precision-fed and skip-a-day-fed broiler breeder pullets

Author:
Girard, Teryn E.; Zuidhof, Martin J.; Bench, Clover J.
Source:
Applied animal behaviour science 2017 v.187 pp. 38-44
ISSN:
0168-1591
Subject:
broiler breeders,   etc   ; aggression; pecking; pullets; social structure; statistical models;     Show all 6 Subjects
Abstract:
... In broiler breeders, conventional skip-a-day feeding leads to hunger-related aggression. As an alternative, a precision feeding system was developed to provide small meals to individual birds multiple times each day, sheltered from competition. Two objectives investigated whether: 1) aggression among pullets; and 2) the number of social rank fluctuations differed between precision and skip-a-day f ...
DOI:
10.1016/j.applanim.2016.12.005

17. Effect of Testosterone Administration and Spiking on Reproductive Success of Broiler Breeder Flocks

Author:
Ordas, B; Vahedi, S; Seidavi, A; Rahati, M; Laudadio, V; Tufarelli, V
Source:
Reproduction in domestic animals 2015 v.50 no.5 pp. 820-825
ISSN:
0936-6768
Subject:
broiler breeders,   etc   ; flocks; roosters; testosterone;     Show all 4 Subjects
Abstract:
... Age negatively affects reproductive success of broiler breeder flocks. One of the main hormones involved in the change of fertility with the age is testosterone (TT). The introduction of young males at later production stages of broiler flocks is known as spiking and is expected to reduce the fertility decline with age. The aim of this study was to determine the effect of injection of different le ...
DOI:
10.1111/rda.12595

18. A Review of Enterococcus cecorum Infection in Poultry

Author:
Jung, Arne; Chen, Laura R.; Suyemoto, M. Mitsu; Barnes, H. John; Borst, Luke B.
Source:
Avian diseases 2018 v.62 no.3 pp. 261-271
ISSN:
0005-2086
Subject:
broiler breeders,   etc   ; Enterococcus cecorum; antibiotic resistance; gastrointestinal system; genes; genetic analysis; meat; morbidity; mortality; pathogenesis; poultry diseases; virulence; virulent strains;     Show all 13 Subjects
Abstract:
... Enterococcus cecorum was initially identified as a harmless commensal of the gastrointestinal tract of chickens. However, over the past 15 yr, pathogenic strains of E. cecorum have become a significant cause of morbidity and mortality in broiler breeders, and repeated outbreaks occur, but an environmental reservoir for pathogenic E. cecorum has yet to be identified. Genetic analyses of E. cecorum ...
DOI:
10.1637/11825-030618-Review.1

19. Lycopene-loaded nanoliposomes improve the performance of a modified Beltsville extender broiler breeder roosters

Author:
Najafi, Abouzar; Taheri, Ramezan Ali; Mehdipour, Mahdieh; Farnoosh, Gholamreza; Martínez-Pastor, Felipe
Source:
Animal reproduction science 2018 v.195 pp. 168-175
ISSN:
0378-4320
Subject:
broiler breeders,   etc   ; antioxidant activity; antioxidants; apoptosis; cryopreservation; eggs; glutathione peroxidase; lycopene; malondialdehyde; mitochondria; roosters; sperm motility; spermatozoa; superoxide dismutase;     Show all 14 Subjects
Abstract:
... Antioxidants may ameliorate the effects of the freeze-thawing stress on cryopreserved spermatozoa. Lycopene is an effective antioxidant yet to be tested for rooster sperm cryopreservation and nanoliposomes, a technology recently applied to sperm cryopreservation, could improve conservation and antioxidant delivery to spermatozoa. Therefore, we evaluated the effect of 0.1, 0.2, and 0.3 mM lycopene ...
DOI:
10.1016/j.anireprosci.2018.05.021

20. Broad spectrum protection of broiler chickens against inclusion body hepatitis by immunizing their broiler breeder parents with a bivalent live fowl adenovirus vaccine

Author:
Popowich, Shelly; Gupta, Ashish; Chow-Lockerbie, Betty; Ayalew, Lisanework; Ambrose, Neil; Ojkic, Davor; Gunawardana, Thushari; Kurukulasuriya, Shanika; Willson, Philip; Tikoo, Suresh K.; Gomis, Susantha
Source:
Research in veterinary science 2018 v.118 pp. 262-269
ISSN:
0034-5288
Subject:
broiler breeders,   etc   ; Adenoviridae; hepatitis; immunosuppression; industry; maternal immunity; neutralizing antibodies; parents; progeny; serotypes; vaccination; vaccines; viruses; Canada;     Show all 14 Subjects
Abstract:
... Historically, fowl adenovirus (FAdV) associated inclusion body hepatitis (IBH) was considered a secondary disease in broiler chickens associated with immunosuppression. However, we previously reported the occurrence of IBH as a primary disease in the broiler chicken industry in Canada as a result of infections with various FAdV serotypes. Therefore, the objectives of this study were to develop an ...
DOI:
10.1016/j.rvsc.2018.03.003