Dear Larbi. Semen with good quality is usually white or whitish gray in color. If the sample changes color, this may wonder if something is wrong with the health. however, Yellow semen may be nothing to worry about, but it may also be a sign of a health problem. For example, in male turkeys, yellow semen syndrome is the most widely recognized problem. Yellow semen is of low quality and, when used for insemination, results in reduction of fertility and hatchability. while, in goat, semen can change it color during different seasons. Ana et al. (2011), recorded that the yellow and citrine-yellow ejaculates were more frequent in rainy season than in dry season. On the other hand, the white ejaculate was most frequent in dry season. In the same study the yellow semen was related to an intermediary semen quality in goat. Preceding studies have testified that about 65% of the ejaculates in goats are pigmented (yellow or slightly yellow), and that yellow pigmentation is associated with a high concentration of riboflavin (Mendonza et al., 1989). These authors also found that riboflavin and fructose concentrations in seminal plasma were significantly higher in yellow semen, compared to whitish ones. Also, the concentration of citric acid was higher in semen samples with more riboflavin (yellow) (Mendonza et al., 1989). Other research conducted with British Alpine goats found yellow-colored semen only during the breeding season (Ahmad and Noakes, 1996). The color of the ejaculate in ruminant species is generally related to sperm concentration. The yellow color is can be normal, it is not related to any pathological changes and semen coloration is believed to be inherited (Ahmad and Noakes, 1996).

Thanks Dr Anas,

but we found this color just on same Buck not all

thanks

you are welcome Dr

The yellow color may be due to the mixing of semen with urine for the absence of full penis erection of the male and to overcome this must leave the male to mount to the female and then descend and repeat it three times until getting full erection that prevents the passage of urine when ejaculation

Hi Larbi, adding to the possibilities commented by the colleagues, you would analyze the presence pf white cells. Sometimes this color could be due because an infection of the accessory glands. Good Luck!

Dear professors

Thanks for your suggestions

Best

White color.yellow may be abnormal or presence of pus cells

Hi Larbi, the color may be occur after intake carotin rich diet or thirst buck deprived water

Dear Profesor

Thanks a lot for our Times

Best

Perdon por no escribir en ingles en mi experiencia he trabajado con semen de ovinos, vacunos, canes y camélidos y en ninguna de estas especies he podido observar una coloración amarillenta la cual podria deberse a un problema infeccioso por lo que seria recomendable realizar una examen fisico del animal y podria ayudar una ecografia de los testiculos para ver si tiene alguna lesion.

SALUDOS

Thanks for your response Pr Uri

Indicate presence of purulent material (pus)

Dear Larbi Allai:

Goat semen may be yellowish due to the major presence of carotene in seminal plasma. It is a specific characteristic of goat semen unlike ovine semen which is pearly white. However, you should discard urine presence or other inflamatory process.

Thanks a lot for your response

Best regards

Dear colleague

According to my experience, in bucks, normal colorations vary from creamy white to whitish grayish and straw-yellow, with creamy appearance, to lemon yellow. Usually the yellowish color is due to the presence of riboflavin or other carotenoids, infections/inflamatory processes or presence of urine as indicated by other colleagues. Even though there are studies that indicates that the color it is not linked to the quality of semen I observed that the creamy white semen presented the highest concentrations and for the yellow/creamy the sperm concentration was reduced.

thanks for this information

According to my knowledge, semen color is relating to animal species (goat), but yellow color of semen in goat bucks may be associated with presence of urine or inflammatory effects in abnormal cases and presence of carotenoid pigments in the seminal plasma related to feeding system. Another reason may be attributed to no leakage of carotenoids to Vit. A occurred in seminal plasma. This point requires a complete   analyses of carotenoids: Vit. A in different species in relation with semen color.

Dear the sperm is not color in any time but the semen is coloration according to nutrition or presence of disease my be suppurative inflammation (pus) further carotenoid contain food or physiologically presence in buck slightly creamy to slight yellow

Due to presence of riboflavin in the semen, the color of the same is yellow

Quality of feed and presence of some infectious or noninfectious disease may be cause

Physiologically due to presence of riboflavin in the semen, the color of the same is yellow. Pathologically it may be greenish, yellowish.

Dear,

The color of buck semen in majority of breeds is creamy white to greyish white. Deviations from this to either yellow or other colors may be due to infections, unrine contaminations or due to nutritional changes. Any deviations from normal will ultimately exhibit poor seminal attributes.