scholarly journals Description of factors decreasing egg incubation of creole hens (Gallus gallus domesticus)

2021 ◽  
Vol 14 (05) ◽  
Author(s):  
Leodan Tadeo Rodríguez-Ortega ◽  
Filogonio de Jesús Hernández-Guzmán ◽  
Juan Noguez-Estrada ◽  
Arturo Pro-Martínez ◽  
Fernando González-Cerón ◽  
...  
Keyword(s):  
Storage Temperature ◽  
Gallus Gallus ◽  
Gallus Domesticus ◽  
Gallus Gallus Domesticus ◽  
Factors Affecting ◽  
Egg Incubation ◽  
High Storage Temperature ◽  
Backyard Flocks ◽  
Chicken Eggs ◽  
High Storage

Objective: To describe the factors that affect the incubation of fertile eggs of Creole hens (Gallus gallus domesticus) at Mezquital Valley, Hidalgo, Mexico. Design/Methodology/Approach: 448 eggs of Creole hens were incubated in a Casser model 7622 incubator, in which the number of infertile and fertile eggs was evaluated; within the number of fertile eggs, the number of dead embryos was determined; due to dehydration or damage caused by fungi and bacteria. From the live hatched chickens, those that died due to omphalitis were recorded. Results: 272 of 448 incubated eggs were fertile; 119 of them hatched and 153 were dead embryos. While 176 were infertile. Among the dead embryos, 84 of dehydration, 69 due to fungal and bacterial infection and 11 live hatched chicks due to omphalitis. Limitations/implications: The literature review found little information on factors affecting the hatching of fertile Creole chicken eggs in backyard flocks. Findings/conclusions: Infection by fungi and bacteria increase embryonic mortality, while omphalitis increases mortality during the first days of life of the backyard Creole chickens. High storage temperature in the nest or incubator causes embryo dehydration.

scholarly journals PENGARUH FREKUENSI PEMUTARAN DAN POSISI TELUR PADA KEBERHASILAN PENETASAN TELUR AYAM KAMPUNG (Gallus gallus Domesticus)

ZOOTEC ◽  
2019 ◽  
Vol 39 (2) ◽  
pp. 444
Author(s):  
Jecqueline C. M. Eoudia ◽  
Lucia J. Lambey ◽  
Josephine L. P. Saerang ◽  
Fredy J. Nangoy
Keyword(s):  
Experimental Design ◽  
Gallus Gallus ◽  
Gallus Domesticus ◽  
Slope Position ◽  
Gallus Gallus Domesticus ◽  
Low Level ◽  
Randomized Design ◽  
Chicken Eggs ◽  
Egg Turning ◽  
Determine Effect

EFFECT OF TURNING  FREQUENCY AND EGG POSITION ON HATCHABILITY OF CHICKEN EGGS (Gallus gallus Domesticus). This study aimed to determine effect of turning frequency and egg position on the hatching ability of chicken eggs. Study was conducted using 162 eggs of local hens inserted into hatching machine withcapacity of 300 eggs and implemented for 24 days. The experimental design of the completely factorial randomized design was applied consisting of 9 treatments and 3 replications. The two treatment factors were turning frequency consisted of 2 times a day, 3 times a day, 4 times a day, and egg position of 300, 600, and 900. The results of the analysis show that the effect of the turning frequency did not show a significant effect (P>0.05) on hatchability. However, egg position had a significant effect (P<0.5) on hatchability. There was no interaction between turning frequency and egg position againt hatchability and mortality. The conclusion of this research was the turning frequency of 2 times  a day with egg slope position of 300 produced high hatchability and low level of mortality. Keywords : Egg turning frequency and position, hatchability, local hen. 

Hydrothermic Treatment Effects on Some Ripening Changes on Mango Fruits (Mangifera indica L) Crillo de Bocado' during Storage: I. Physical Parameters

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 520d-520
Author(s):  
Oswaldo Valor ◽  
Juan E Manzano
Keyword(s):  
Weight Loss ◽  
Skin Color ◽  
Storage Temperature ◽  
Mangifera Indica ◽  
Physical Parameters ◽  
Fresh Weight ◽  
Randomized Design ◽  
High Storage Temperature ◽  
High Storage ◽  
Green Stage

Mango fruits `Criollo de Bocado' harvested at the mature-green stage were treated with a hydrothermic treatment of 55 °C for 3 min and stored for 20 days to temperatures of 10 ± 2, 15 ± 2, and 28 ± 2 °C. A randomized design 2 × 3 × 4 with three replications was used. Physical parameters such as color (L*, a*, b*), firmnness, and fresh weight loss were studied. Results reported that mango fruits stored at 10.2 and 15.2 °C showed the highest firmness values. Skin color changed very fast during the first storage days, while pulp color required more time to achieve mature ripe color. Fresh weight loss tended to increase with storage time and with high storage temperature. The lowest storage temperture retarded softening in mango fruits and firmnness reached the highest values.

scholarly journals Distribution of Melanin Pigmentation in 33 Organs of Thai Black-Bone Chickens (Gallus gallus domesticus)

Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 777
Author(s):  
Korakot Nganvongpanit ◽  
Piyatida Kaewkumpai ◽  
Varankpicha Kochagul ◽  
Kidsadagon Pringproa ◽  
Veerasak Punyapornwithaya ◽  
...  
Keyword(s):  
Gallus Gallus ◽  
Gallus Domesticus ◽  
Melanin Pigment ◽  
Gallus Gallus Domesticus ◽  
Tissue Samples ◽  
Melanin Pigmentation ◽  
Chicken Breed ◽  
Brachial Vein ◽  
The Brain ◽  
Pigment Accumulation

The black-bone chicken (Gallus gallus domesticus) is a breed of chicken that is commonly found in Thailand. This breed is known for having a number of black colored organs. Consumers have been notably attracted to the black-bone chicken breed for the characteristic darkness that is observed in many of its organs. However, the degree of darkness in all organs of the black-bone chicken is still in question. Importantly, there have not yet been any published reports on the distribution of melanin pigment in the organs of the black-bone chicken. This research study aims to examine the distribution of the melanin pigment in 33 organs of the Thai black-bone chicken. Ten black-bone chickens (five male, five female) were included in this study. Thirty-two organs including the brain, spinal cord, sciatic nerve, larynx, trachea, syrinx, lungs, heart, pericardium, aorta, brachial vein, kidney, cloaca, oviduct, testis, gastrocnemius muscle, femur, tongue, esophagus, crop, proventriculus, gizzard, duodenum, jejunum, ileum, cecum, pancreas, liver, gall bladder, omentum, abdominal fat, spleen, and skin were examined in this study. Histological sections taken from tissue samples of each of these organs were studied. The findings revealed that the presence of the melanin pigment was not significantly different (p > 0.005) between male and female specimens. Notably, the liver was the only organ in which the melanin pigment had not accumulated. Consequently, there was not a uniform pattern of melanin pigment accumulation throughout the organs of the chickens. The melanin pigment was present in all of the tissue layers of most organs, while the melanin pigment was found in only specific layers of some of the organs. In conclusion, the distribution of melanin pigmentation in the organs of each of the animals in this study was found to be different. However, in some tissue samples, such as those obtained from the liver, no accumulation of the melanin pigment was observed.

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