Hossem SAHRAOUI

12 Questions 31 Answers 0 Followers

Questions related from Hossem SAHRAOUI

How much time can we conserve ewes blood serum samples in - 20°C for biochemical analysis?

Hello, I would like to know how much long can I conserve serum samples in - 20°C for biochemical analysis : lipid profile (cholesterol, triglyceride...), protein profile (albumin, total...

30 May 2022 9,274 15 View

Pelvic opening might be considered as a criteria in goat genetic selection programs?

Looking for researches or documents which have already included the pelvic opening in goat as a criteria in selection programs. Thank you in advance

14 January 2022 9,739 1 View

What are the criteria for selecting variables for PCA analysis ?

How can I select variables for PCA analysis from huge set of data? except the biological significance of the variables, are there other criteria for objectively choosing the most relevant...

22 February 2021 9,734 10 View

Which is the most appropriate graphical method to represent distances between breeds concerning one locus?

I'm studying the polymorphism of a microsatellite related productive performance in 4 goat breeds and I would like to represent the distances between them according to its polymorphism (alleles...

06 February 2020 1,775 3 View

How to study meat chain value?

I would like to study camel meat industry in a region of southern Algeria, and I'm looking for advice and recommendations, and eventually guides (or article) to develop relevant questions for the...

11 March 2016 1,379 11 View

On what criteria some specific microsatellites were recommended by the FAO and the ISAG for the characterization of animal genetic resources ?

Microsatellites recommended by the FAO and the ISAG for the animal genetic characterization, are they related to characters (qualitative or quantitative)? Or they were chosen on other criteria?...

11 November 2015 9,885 5 View

What diseases do north African goat breeds have genetic resistance to, in comparison to other breeds "eg: European breeds"?

Hello, I would like to know if north african goat (in Morroco, Algeria and Tunisia) has resistance aptitudes to certain deseases, specialy zoonosis. Thank you

08 June 2015 7,398 3 View

How do I calculate polypeptides pHi, especially when we have repeated amino acid?

How to calculate pHi of these peptides: 1) Arg-Ala-Arg-Ala-Phe 2) His-Phe-Trp-Asp-Asp thank you

12 May 2015 1,136 3 View

Does the number of variables affect the quality of PCA?

Hello, I'd like to know if the number of variables chosen for the principal component analysis affects the quality of the analysis. in other words, a PCA with 15 variables is it better than 23...

28 January 2015 8,461 12 View

How could I convert production of goat milk with 4.2 % of fat to production of standard milk with 3.5 % of fat?

to calculate energy requirements for goat, we have to consider fat content in the milk, so to produce 1 kg of milk with 4.2 % of fat, animal needs more energy than to produce milk with 3.5 % of...

27 January 2015 4,834 8 View

What are the conditions during transport of milk samples to be analysed by milkoscan technique?

My work involves transportation of milk samples from the farm to the lab. I would know, how should I conserve my samples, knowing that, the lab is approximately 3 hours far from the farm, and...

26 January 2015 7,787 21 View

In milk recording, could we use the protocol A4 for once daily milking system in goats?

Hello, I wonder if the recording protocol A4 is suitable for once daily milking system. I think that a once daily milking underestimate the production of goat, and makes result incomparable with...

26 January 2015 6,538 6 View