Farzaneh Sattari najaf abadi; Ardeshir Mohit; hossein Moravej; navid Ghavi Hosien-Zadeh; hassan darmani koohi; meisam tavakoli
Volume 23, Issue 1 , March 2021, , Pages 97-107
Abstract
This study was conducted to investigate the effects of two types of omega-3 calcium fat powders with animal and vegetable origin on productive performance, reproductive and egg quality of broiler breeder hens by using 60 hens and 20 roosters (65 weeks), in a completely randomized design with ...
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This study was conducted to investigate the effects of two types of omega-3 calcium fat powders with animal and vegetable origin on productive performance, reproductive and egg quality of broiler breeder hens by using 60 hens and 20 roosters (65 weeks), in a completely randomized design with five treatments and four replicates for two months. Experimental treatments were: 1- control (without fat powder); 2- 1.5% animal omega-3 calcium fat powder based on fish oil; 3- 3% animal omega-3 calcium fat powder based on fish oil; 4- 1.5% vegetable omega-3 calcium fat powder based on flaxseed oil; 5- 3% vegetable omega-3 calcium fat powder based on flaxseed oil. Egg production percentage and economic benefit of hens fed with diets containing 1.5% animal and vegetable fat powders were greater than hens that received 3% of them (p<0.05). The highest concentration of yolk docosahexaenoic acid and docosahepanthanoic acid were in eggs of hens fed with diet containing 3% animal and vegetable fat powder and thelowest concentration of linolenic acid was in the yolk of eggs obtained from control hens or hens fed with diet containing 1.5% animal fat powder (P<0.05). The lowest percentage of hatchability and the highest omega-6: omega-3 ratio were related to hens received control diet (P<0.05). Based on current results, adding animal or vegetable omega-3 calcium fat powder at the level of 1.5% in old broiler breeder hen’s diet, without negative effect on performance, improve hatchability and yolk fatty acid composition and is economically more affordable.
Volume 19, Issue 2 , August 2017, , Pages 427-439
Abstract
This study was conducted to investigate the effect of dietary supplemented with zinc oxide (0, 40, 80, 120 and 160 mg /kg of diet) and vitamin E (Vit E; α-tocopherol acetate; 0 and 40 IU/kg of diet) on fertility and hatchability of Japanese quails, and growth performance and immune response of ...
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This study was conducted to investigate the effect of dietary supplemented with zinc oxide (0, 40, 80, 120 and 160 mg /kg of diet) and vitamin E (Vit E; α-tocopherol acetate; 0 and 40 IU/kg of diet) on fertility and hatchability of Japanese quails, and growth performance and immune response of their progenies. A total of 960 Japanese quails (Coturnix coturnix japonica) 70 d of age were housed in cages and randomly allocated to 10 treatments with 4 replicates of 24 birds in each (sixteen females and eight males). Dietary supplemented zinc and Vit E significantly increased hatchability (P≤0.05). There was a significant effect of Vit E on breeder quails fertility, while zinc supplementation was reduced embryonic mortality at the second stage (10-16 day) (P≤0.05). Supplemental zinc significantly improved feed conversion ratio of offspring in the first three weeks of age, while added Vit E improved feed conversion ratio only in the first week of offspring growth (P≤0.05). Dietary supplementation of Japanese quail’s ration with zinc and Vit E increased immune response of offspring, and enriched Zn content of tibia bone of offspring increased with zinc supplementation. In conclusion, supplementing breeder Japanese quails ration with zinc and Vit E improved hatchability and growth performance and immune response of offspring.
Omid Afsarian; Mohamad Hosein Shahir; Hoshang Lotpholahian; Abdolah Hoseini; Naser Mousavi; Amir Akhlaghi
Volume 18, Issue 1 , April 2016, , Pages 61-73
Abstract
Two experiments were conducted to evaluate the effects of thyroxin in ovo injection and post hatch arginine feed supplementation on performance and cold tolerance acquisition in broilers. In experiment 1, a total of 2400 hatchings eggs were randomly assigned to four treatments: Positive controls (intact ...
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Two experiments were conducted to evaluate the effects of thyroxin in ovo injection and post hatch arginine feed supplementation on performance and cold tolerance acquisition in broilers. In experiment 1, a total of 2400 hatchings eggs were randomly assigned to four treatments: Positive controls (intact or pricked with a needle), Negative control (intact egg), injected with distilled water and injected with thyroxin. In experiment 2, a total of 240 day old male broiler chicks from the intact and injected with thyroxin treatment groups were assigned in a 2 × 2 factorial trial based on completely randomized design, with two level of injection (non-injection or injected with 65ng of thyroxin) and two type of diet (without Arginine or 5 kg/ton Arginine). In order to induce ascites in chicks, all of the chicks were exposed to 15°C from 14 to 42 d of age. The results showed that the second grade chicks and yolk sac weight were decreased (P<0.05) in thyroxine by in ovo injection. Ascites mortality rate, packed cell volume percent and red blood cell count were decreased (P<0.05) by thyroxine injection and arginine supplementation. In conclusion, these results show that in ovo injection of thyroxin and arginine feed supplementation improves the performance during exposure to cold environments.
Morteza Nadali; Somayyeh Salari; Mohammad Boujarpour; Saleh Tabatabaei Vakili; Mohsen Sari
Volume 17, Issue 1 , April 2015, , Pages 141-149
Abstract
Effect of levels of zinc supplementation on footpad lesions, reproductive and blood parameters of broiler breeders with 300 hens and 40 roosters of Ross 308 strain with four treatments, five replicates and 15 hens and two roosters in each for 12 weeks was evaluated in a completely randomized design. ...
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Effect of levels of zinc supplementation on footpad lesions, reproductive and blood parameters of broiler breeders with 300 hens and 40 roosters of Ross 308 strain with four treatments, five replicates and 15 hens and two roosters in each for 12 weeks was evaluated in a completely randomized design. Dietary treatments were 80, 110, 140 and 170 mg zinc/kg diet. Increasing supplemental zinc level especial 170 mg/kg diet increased hatchability (P<0.05). Levels of 140 and 170 mg zinc/kg diet significantly improved footpad lesions (P<0.05). In the first phase of incubation, the lowest rate of mortality observed in 140mg zinc/kg diet (P<0.05). Also, number of large and small size follicles of broiler breeders increased at 170 mg zinc/kg diet (P<0.05). Blood parameters did not affect significantly. The results of this experiment showed that supplementation of broiler breeders diet with zinc at 140 and 170 mg/kg diet could improve hatchability and had desirable effect on footpad health.