Evaluación de la fertilidad y eclosión en la codorniz japonesa

Content Provider	Semantic Scholar
Author	Galíndez, Rafael Basilio, Vasco De Martínez, Gonzalo Vargas, Daniel Alberto Barbosa Uztariz, Edwin Mejía, Patricia
Copyright Year	2009
Abstract	With the aim to study the effect of some non genetic factors on fertility and hatchability of quails (Coturnix coturnix japonica) under two different reproduction systems (modalities of matching), three analyses of variance were realized assuming a binomial distribution of the data. There were used 2613 records for fertility (FE), 2178 for total hatchability (TH), and 1413 for fertile hatchability (FH) from a group of experimental quails. The effects of month of lay, generation, and type of matching were included for FE and for TH and FH were added egg weight, eggshell color and sheen. Water and food were offered ad libitum. The relation male: female was 1:3. Two modalities of reproduction were studied: rotary (rotating the male) and continuous (permanent presence of the male). Fertility, TH and FH averages were 78.7, 25.8, and 42.3%, respectively. The month of higher (P<0.01) fertility was March (91.1%), whereas November had the lowest (51.7%). The higher TH and FH (P<0.01) was in August (42.6 and 65.7%) and the lower TH and FH were observed in April (12.5 and 17.9%). There was higher fertility (P<0.01, 86.2%) in the eggs from continuous reproduction system. Eggs with higher TH (P<0.01) were those of brilliant eggshell (43.9%), dark color eggshell (48.0%) and intermediate weight (10.1 to 11.0 g; 44.0%). It can be concluded that the eggs of dark color, brilliant eggshell, and intermediate weight laid in the rainy months
Starting Page	7
Ending Page	18
Page Count	12
File Format	PDF HTM / HTML
Volume Number	27
Alternate Webpage(s)	http://www.scielo.org.ve/pdf/zt/v27n1/art02.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article