Egg Production and Quality Traits of Sasso-Rir, Normal Feathered Local and Their F1 Cross Chickens Managed Under on-Station Condition in Southern Ethiopia

Wolde, Shewangizaw; Mirkena, Tadele; Melesse, Aberra; Dessie, Tadelle; Abegaz, Solomon

doi:10.56369/tsaes.3828

Cited by 5 publications

(10 citation statements)

References 10 publications

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“…In the current study, no effect of dietary CP on abdominal fat was observed, in agreement with Awad et al (2014) and Wolde et al (2011). Although in the third phase (92-119 days old) there was a quadratic effect of CP on GDP, this suggests that the N from amino acids could be eliminated by the excreta as reported previously by Hernández et al, (2012).…”

Section: Effect Of Crude Proteinsupporting

confidence: 92%

“…However, the current study used three schemes where the CP in the diet ranged between 14 and 22%. Similarly, Wolde et al (2011) used five diets (14,16,18,20 and 22% CP) for 1-91 days-old RIR chickens and recommended 16% CP in the diet. This result differs with the current study, in which the chicken growth was divided in phases because the requirement of nutrients is higher in the early age; likewise, it is related to the rate of protein accretion in the body that is higher in the first two weeks of life (Kang et al, 1985;Wen et al, 2016).…”

Section: Effect Of Crude Proteinmentioning

confidence: 99%

“…Alagawany et al (2011) andZeweil et al (2011), feeding laying hens, andWolde et al (2011) feeding RIR chickens. They found high CP intake when the diet had high CP concentration.…”

mentioning

confidence: 99%

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Estimation of the Requirement of Metabolizable Energy and Crude Protein for Growing in Rhode Island Red Chickens, Under Tropical Conditions of Southeastern Mexico

Baas-Osorio

Sarmiento‐Franco²,

Santos-Ricalde

et al. 2019

Trop Subtrop Agroecosyst

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<p>The objective of the current study was to estimate the requirement of metabolizable energy (ME) and crude protein (CP) for growing Rhode Island Red male chickens from 17 to 119 days-old, under tropical conditions of Yucatan, Mexico. The experiment consisted in three feeding phases (17–56, 57–91, 92–119 days old), using a factorial 2x3 design for each one. Two constant ME (2900 and 3100 kcal/kg DM), and three CP concentrations (% DM) that varied with age: 22, 20 and 18% (17–56 days-old); 20, 18 and 16% (57–91 days-old); and 18, 16 and 14% (92–119 days-old) were used. Two batches of 72 Rhode Island Red male chickens each one was used; the first one for the first feeding phase and the second batch for the second and third feeding phases. Response surface procedures to obtain the best ME and CP concentrations were carried out. The body weight gain (BWG) and feed intake (FI) were greater in the first feeding phase with 2900 kcal ME/kg DM in the diet; however, in the second phase there was not significant effect of energy concentration. From 17–91 days-old, the FI increased with 2900 kcal ME/kg DM in the diet. Chickens had a higher BWG from 92–119 days-old when 16% CP was included in the diet. Protein efficiency was better from 17–119 days-old when the lower CP concentration was included in the diet. In conclusion, the greatest BWG were obtained, when 2900 kcal ME/kg DM, for the three feeding phases, was used. The best approximations of CP requirement in the diet for the first, second and third feeding phases were 21.3%, 19.2% and 17.1%, respectively.</p>

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Section: Effect Of Crude Proteinsupporting

confidence: 92%

Section: Effect Of Crude Proteinmentioning

confidence: 99%

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Estimation of the Requirement of Metabolizable Energy and Crude Protein for Growing in Rhode Island Red Chickens, Under Tropical Conditions of Southeastern Mexico

Baas-Osorio

Sarmiento‐Franco²,

Santos-Ricalde

et al. 2019

Trop Subtrop Agroecosyst

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“…In comparison with the European average, broiler chickens produced in conventional rearing systems in Poland are characterized by one of the highest slaughter weights and one of the longest rearing periods. In Poland, the average weight at slaughter is 2.44 kg [31]. This parameter is higher only in Spain (2.66 kg), Cyprus (2.64 kg), and Italy (2.60 kg) [32].…”

Section: Discussionmentioning

confidence: 95%

Assessment of the Economic Profitability of Fattening Selected Chicken Genotypes in an Organic Farm

Obremski,

Tyburski,

Wojtacha

et al. 2023

Agriculture

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The aim of this study was to evaluate whether production costs can be reduced and whether the profitability of organic chicken fattening can be increased by selecting the appropriate genotypes. Rhode Island Red (K-11) and Sussex (S-66) conservative chicken genotypes, as well as modern chicken genotypes such as slow-growing Hubbard JA 957 hybrids and fast-growing Ross 308 hybrids, were selected for the study. One hundred and sixty chickens were used in the experiment (forty birds per group). The birds were fed commercial organic complete feed up to 52 days of age and organic farm-made feed (to reduce costs) between 53 and 81 days of age. Population distribution was determined using the Kolmogorov–Smirnov test. The results were analyzed statistically using one-way analysis of variance (ANOVA) with multiple comparisons and the post hoc Tukey test at a significance level of p < 0.05. The 81-day fattening period (the minimum recommended period in organic farming) led to considerable weight deficits in Rhode Island Red and S-66 chickens and excessive slaughter/trade weights in Hubbard JA 957 and Ross 308 chickens. The feed conversion ratio was high in Rhode Island Red (K-11) and Sussex (S-66) chickens at 4.19 and 4.50, respectively, and much lower in Hubbard JA 957 and Ross 308 chickens at 2.79 and 2.53, respectively. The choice of chicken genotypes had a major impact on the profitability of organic farming, and the total costs of feed and other ingredients per kg of body weight were determined at EUR 3.83 for Rhode Island Red (K-11), EUR 3.90 for Sussex (S-66), EUR 6.57 for Hubbard JA 957, and EUR 6.62 for Ross 308 genotypes. The profitability of organic farming can be increased by selecting modern, meat-type, slow-growing chicken genotypes.

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“…In some studies (Khalil et al, 2004 ; Soliman et al, 2020 ; El-Tahawy and Habashy, 2021 ), reciprocal crosses of exotic and indigenous breeds performed better than indigenous breeds but not exotic ones for different traits. In Wolde et al ( 2021 ), crosses between exotic SS-RIR and local chicken of Ethiopia mostly outperformed local chicken but not SS-RIR.…”

Section: Discussionmentioning

confidence: 96%

Evaluation of reciprocal F1 crosses of Fayoumi with two exotic chicken breeds 1: additive and non-additive effects on egg production traits

Negash,

Abegaz,

Tadesse

et al. 2023

Trop Anim Health Prod

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The present study estimates additive and non-additive effects on egg production traits in genotypes generated through pure mating and reciprocal crossing of Fayoumi (FM) with Koekoek (KK) and White Leghorn (WL). Age at first egg (AFE) and body weight at first egg (BWAFE) were determined when the first bird in the pen laid its first egg, and egg weight at first egg (EWAFE) was the average weight of eggs laid consecutively during the first 10 days. Egg number (EN) and egg weight (EW) were recorded daily from AFE to 40 weeks of age. Egg mass (EM) was the product of EN and EW. EN of hens initially housed and hens alive during the experiment were used to calculate hen-housed egg production (HHEP) and hen-day egg production (HDEP), respectively. All the traits showed statistically significant differences among the genotypes. The results revealed the importance of additive and non-additive effects, where purebred effect (PE), general combining ability (GCA), maternal effect (ME), specific combining ability (SCA), and residual reciprocal effect (RRE) significantly affected most of the traits. The KK and WL had a higher PE, and GCA was highest in KK, with FM and WL showing a higher ME. The FM x WL had higher SCA and RRE. The KK x FM and FM x WL outperformed their main and reciprocal crosses, respectively, and purebred contemporaries. Therefore, a synthetic breeding program involving KK as a sire and FM, WL, FM x WL, and KK x FM as a dam would be feasible.

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Egg Production and Quality Traits of Sasso-Rir, Normal Feathered Local and Their F1 Cross Chickens Managed Under on-Station Condition in Southern Ethiopia

Cited by 5 publications

References 10 publications

Estimation of the Requirement of Metabolizable Energy and Crude Protein for Growing in Rhode Island Red Chickens, Under Tropical Conditions of Southeastern Mexico

Estimation of the Requirement of Metabolizable Energy and Crude Protein for Growing in Rhode Island Red Chickens, Under Tropical Conditions of Southeastern Mexico

Assessment of the Economic Profitability of Fattening Selected Chicken Genotypes in an Organic Farm

Evaluation of reciprocal F1 crosses of Fayoumi with two exotic chicken breeds 1: additive and non-additive effects on egg production traits

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