scholarly journals Development of Selection Method for Genetic Potential and Adjusment of Nutritional Requirement to Stimulate Gene Expression of Local Meat Chicken

2009 ◽  
Vol 3 (2) ◽  
Author(s):  
M. Aman Yaman ◽  
Dasrul Dasrul ◽  
Zulfan Zulfan
Keyword(s):  
Gene Expression ◽  
Artificial Insemination ◽  
Optimal Growth ◽  
Selection Method ◽  
Nutritional Requirement ◽  
Food Conversion ◽  
Production Parameters ◽  
Genetic Potential ◽  
Parent Stock ◽  
Nutrition Standards

This study aimed to evaluate the genetic potential of local meat chickens (LMC) to get the candidate of parent stock through the development of the selection method applied, as well as economical and practical approach and adjusment of nutritional requirement, especially protein and energy balance. Research was divided into 2 groups, where the female and male parent was reared for 2 months and the offspring (F1) was reared for 4 months and selected. The parent was mated by the method of artificial insemination (AI). Method of selection was used on the orientation of the meat chicken production parameters with a positive correlation with the gene expression Diet treatments were formulated by optimal nutrition standards in order to drive maximum primary production of local meat chicken, contained 17, 19, and 21% of protein. The result showed that feeding diet with 19% protein can stimulate optimum growth and food conversion of ALPU male, whereas female growth LMC in line with the increasing availability of protein in the diet, wherein feeding 21% of protein result in optimal growth until age 4 months.

scholarly journals ASPECTOS DO MANEJO REPRODUTIVO DE SUÍNOS

2017 ◽  
Vol 13 (Especial 2) ◽  
pp. 41-50
Author(s):  
Ronaildo Fabino Neto ◽  
João Paulo Belém de Sousa ◽  
Letícia Fernandes Xavier Costa ◽  
Danyane Pereira Marques ◽  
Ingrid Lorrainy da Silva Oliveira ◽  
...  
Keyword(s):  
Artificial Insemination ◽  
Reproductive Technologies ◽  
Female Reproductive System ◽  
Anatomy And Physiology ◽  
Production Parameters ◽  
Reproductive Management ◽  
Genetic Potential ◽  
Average Production ◽  
Piglet Mortality ◽  
Selection Of

This review was carried out with the purpose of describing the main reproductive management used in the rearing of pigs. Currently, swine breeding in Brazil has average production parameters of 9.5 piglets / calving with 1.9 calving / year, with a genetic potential to reach 13 piglets / calving with 2.6 calving / year. To obtain these zootechnical indexes in pig production, it is necessary to invest in reproductive technologies such as artificial insemination, adequate facilities and frequent training of the workforce. In this sense, to be successful in reproduction, it becomes necessary to know the anatomy and physiology of the male and female reproductive system. The good reproductive performance of the animals also depends on the criterion of selection of the boar and the matrices applied in the breeding. It is fundamental to know the estrous cycle, as well as, the behavior of the nut in estrus to obtain success in artificial insemination or natural mating. The gestation period, as well as childbirth, are critical breeding phases and should be well conducted with the aim of avoiding or reducing piglet mortality. Therefore, the reproductive stages of pigs should be well conducted with special attention to food and sanitary management. The knowledge of the reproductive management by the producer and / or technician responsible for the farm is of fundamental importance to achieve good productive indexes

scholarly journals A Robust Gene selection Method for Microarray-based Cancer Classification

2010 ◽  
Vol 9 ◽  
pp. CIN.S3794 ◽  
Author(s):  
Xiaosheng Wang ◽  
Osamu Gotoh
Keyword(s):  
Gene Expression ◽  
Feature Selection ◽  
Gene Selection ◽  
Information Gain ◽  
Expression Profiles ◽  
Feature Selection Method ◽  
Gene Expression Profiles ◽  
Molecular Classification ◽  
Selection Method ◽  
Chi Square

Gene selection is of vital importance in molecular classification of cancer using high-dimensional gene expression data. Because of the distinct characteristics inherent to specific cancerous gene expression profiles, developing flexible and robust feature selection methods is extremely crucial. We investigated the properties of one feature selection approach proposed in our previous work, which was the generalization of the feature selection method based on the depended degree of attribute in rough sets. We compared the feature selection method with the established methods: the depended degree, chi-square, information gain, Relief-F and symmetric uncertainty, and analyzed its properties through a series of classification experiments. The results revealed that our method was superior to the canonical depended degree of attribute based method in robustness and applicability. Moreover, the method was comparable to the other four commonly used methods. More importantly, the method can exhibit the inherent classification difficulty with respect to different gene expression datasets, indicating the inherent biology of specific cancers.

scholarly journals Economic mechanism of the region breeding service activity

2021 ◽  
Vol 285 ◽  
pp. 01011
Author(s):  
Konstantin Titorenko ◽  
Kirill Zhichkin
Keyword(s):  
Artificial Insemination ◽  
Cattle Breeding ◽  
Economic Mechanism ◽  
Agricultural Enterprises ◽  
Genetic Potential ◽  
Sexed Semen ◽  
Service Activity ◽  
Main Factors ◽  
Cattle Reproduction ◽  
Donor Cows

The article examines the concept and elements of the economic mechanism of breeding in the region. The main goal of this work is to determine the features of the economic mechanism of the breeding service in the region for its further optimization. At the same time, the following tasks are being solved: - to reveal the features of the economic mechanism of the breeding service of the region; - to determine the main factors influencing the activities of the breeding service in the region; - to analyze the effectiveness of state support for the breeding service of the region. We note that the technologies of cattle reproduction using the method of artificial insemination with sexed semen and the method of embryo transfer in agricultural enterprises in practice have proven their economic efficiency and high profitability indicators. But to obtain the described results, the source material (sexed seed and embryo), as well as the qualities of the donor and recipient, as well as systematic work in the industry of dairy and beef cattle breeding in the Samara region, are extremely important. Raised cows with high genetic potential, obtained from artificial insemination with sexed semen and embryo transplantation, can then be used as donor cows to obtain embryos and their further transplantation in other agricultural enterprises.

scholarly journals Agrometeorological characteristics of spring oat varieties created in the conditions of the Northern Trans-Urals

2021 ◽  
Vol 36 ◽  
pp. 01018
Author(s):  
M.N. Fomina
Keyword(s):  
Air Temperature ◽  
Growth And Development ◽  
Optimal Growth ◽  
High Yield ◽  
Emergence Period ◽  
Optimal Amount ◽  
Temperature And Precipitation ◽  
Genetic Potential ◽  
Effective Temperatures ◽  
Optimal Average

An agrometeorollological assessment of five oat varieties (Megion, Talisman, Otrada, Foma, Tobolyak) of the breeding of the Northern Trans-Urals Research Institute of Agriculture - branch of the TyumSC SB RAS is given. The effect of the average daily air temperature and precipitation on the growth and development of plants has been established. The sensitivity of varieties to temperature is estimated. It was found that the optimal average daily air temperature during the sprout – ear emergence period was 16.4 … 16.8°C, during the ear emergence – waxy ripeness period - 17.5…19.4°C. The sums of effective temperatures over 10°C necessary for optimal growth and development of oat varieties are calculated. Varieties Megion, Talisman, Foma and Tobolyak in the period of sprout – ear emergence required a greater amount of effective temperatures (705.2…747.0°C) than in the period of ear emergence - wax ripeness (611.2…640.2°C). In the Otrada variety, the need for heat was slightly higher in the second interphase period (717.5°C) compared to the first (705.6°C). The optimal amount of precipitation required for the formation of a high yield (189.4…243.6 mm) is calculated. To realize the genetic potential of the Talisman and Otrada varieties, most of the precipitation is necessary during the sprout – ear emergence period, and the Megion, Foma and Tobolyak varieties - during the period of ear emergence - waxy ripeness.

scholarly journals Atlantic salmon require long-chain n-3 fatty acids for optimal growth throughout the seawater period

2016 ◽  
Vol 5 ◽  
Author(s):  
Grethe Rosenlund ◽  
Bente E. Torstensen ◽  
Ingunn Stubhaug ◽  
Nafiha Usman ◽  
Nini H. Sissener
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Atlantic Salmon ◽  
Fold Increase ◽  
Optimal Growth ◽  
Dietary Fatty Acids ◽  
Nutritional Requirement ◽  
Retention Efficiency ◽  
Long Chain

AbstractThe nutritional requirement for n-3 long-chain PUFA in fast-growing Atlantic salmon (Salmo salar) during grow out in the sea is not well documented. Diets were formulated with levels of EPA (20 : 5n-3) and DHA (22 : 6n-3) ranging from 1·3 to 7·4 % of fatty acids (4–24 g/kg feed). Two long-term trials were conducted through the seawater phase, the first at 6 and 12°C, and the second at 12°C. In the first trial, growth at both temperatures was significantly lower in fish fed 1·4 % EPA+DHA of total fatty acids compared with the 5·2 % EPA+DHA group. In the second trial, growth was significantly lower in fish fed 1·3 and 2·7 % compared with 4·4 and 7·4 % EPA + DHA. Fatty acid composition in the fish reflected diet composition, but only after a 7-fold increase in body weight did the fatty acid profile of the fish stabilise according to dietary fatty acids (shown for EPA and DHA). The retention efficiency of DHA increased with decreasing dietary levels, and was 120–190 and 120–200 % in trials 1 and 2, respectively. The retention efficiency of EPA was lower (60–200 %), and values >100 % were only achieved at the lowest dietary levels in both trials. Temperature did not affect fatty acid retention efficiency. These results suggest that Atlantic salmon have a specific requirement for EPA + DHA >2·7 % of fatty acids for optimal long-term growth in seawater, and that short-term growth trials with less weight increase would not show these effects.

scholarly journals Effect of Artificial Insemination on different production parameter in Hubbard classic broiler parent stock

2016 ◽  
Vol 13 (1) ◽  
pp. 71-77 ◽  
Author(s):  
M Habibullah ◽  
MA Hashem ◽  
MS Rana ◽  
MH Islam
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
Artificial Insemination ◽  
Significant Variation ◽  
Health Condition ◽  
Production Parameter ◽  
Broiler Breeder ◽  
Experimental Animals ◽  
Production Growth ◽  
Parent Stock

The experiment was conducted to determine the effect of artificial insemination (AI) on different production parameter in Hubbard Classic Broiler breeder parent stock. A total number of 300 female and 30 male Hubbard Classic broiler breeder parent stock birds were used as experimental animals and parameter recorded are: Health condition and body weight of birds, % of Production, % Hatchability,% Uniformity, grade A chicks, mortality % , hatching egg % & effect of diluents use, birth weight of day old chick (DOC). Significant variation (p<0.01) was observed in number of hatched birds, % of hatchability, production of total no of Grade A chicks, total number of damaged chicks and average chick weight. In the study, hatchability (%), production (%), growth and puberty weight (g) were significantly higher during post insemination compared to pre insemination stage, where as mortality (%) and uniformity (%) were significantly lower in case of post insemination stage. Body weight and uniformity (%) of birds either both sexes were significantly (p<0.01) different in birds at pre insemination stage compared to the birds at insemination. To be mentioned that body weight of birds was negatively correlated to the uniformity. Finally it could be concluded that AI may be better in all the parameters observed in this study than natural mating. So, AI can be practiced in Hubbard Classic broiler breeder parent stock.J. Bangladesh Agril. Univ. 13(1): 71-77, June 2015

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