Considering the relationships anywhere between every learnt points once the minimal, new mathematical analysis was performed having fun with a trial sorts of XLSTAT 2014.5 (Addinsoft 2014), ultimately causing univariate research (descriptive statistics and you can visual data) and you may bivariate analysis (regression and you may devotion coefficients R?). The organization shows according to 12 months was in fact compared using z and you can t-take to. Eventually, to attempt the fresh effect of your own mother’s years toward lamb’s weight, a diagnosis out of difference (ANOVA) is did followed by Tukey and Newman-keuls mode research testing.
Aftereffect of the entire year
As the delivery imply pounds is actually identical throughout the spring (step 3.05 kilogram) and you may trip (step three.03 kg), there is an extremely factor into the gaining weight, between lambs produced when you look at the two 12 months; the highest development was submitted in the springtime (Figure step 1). The show showed that lambs created throughout springtime exhibited a growth when you look at the imply pounds regarding thirteen.3 kilogram to your period from birth into the age of 90 days, while inside exact same period of time (0-ninety days) brand new indicate lbs boost are 11.5 kilogram to possess lambs created throughout autumn. This type of findings was concordant that have those individuals claimed by other article writers (Anallaet al 1997 and you can Rekik ainsi que al 2008) who discovered that the lambing 12 months is actually an incredibly significant foundation off influence. Considering these types of experts, a knowledgeable pounds increases was basically always related to springtime. Into the reverse, Fernandez-Abella (1991) and you will Chniter et al (2011) pointed out that lambs born when you look at the fall 12 months was in fact tend to hefty than others produced from inside the springtime for some breeds. So it difference between performance is eg connected with the fresh new reproduce, new experimental requirements, the entire year, brand new herd feeling, the surroundings, and particularly the newest carrying conditions. Together with, the difference inside the pounds progression anywhere between lambs produced throughout these one or two seasons try mainly regarding favourable weather; spring season try characterized by the available choices of sensitive and you may numerous herbage, therefore sheep tended to develop dairy off better made and also in sufficient quantities, which led to a better gaining weight getting lambs born through the this current year as opposed to those born during autumn. Nevertheless, regardless of the 12 months brand new development off weight is actually extremely said of the the age of lambs, with a decision coefficient out-of 0.99.
The average daily gain showed the incontestable effect of season, with a mean of 146g/d during spring and 125g/d during autumn, this difference was highly significant (p < 0.01) according to the z and t-test. The low coefficient of variation (= 3%) for both season reflected certain stability of the average daily gain, however a slightly decreasing tendency was recorded between the age group 0 to 30 days and the age group 30 to 90 days during the two seasons, the average daily gain decreased from 152 g/d to 139 g/d during spring, and from 132 g/d to 123 g/d during autumn. This decreasing behaviour was mostly related to the nature of diet, based exclusively on milk during the age 0 to 30 days which tend to produce a high daily gain. In contrary, the age 30 to 90 days characterized by a low milk productivity of the mother and a progressive transition to solid food, led to a slightly low daily gain. This contrast the finding of Boujenane and Kerfal (1992) who reported a low daily gain during the age 10 to 30 days due to a low milk productivity of D'man breed.
Statistically, because the revealed by the negative property value the new regression coefficient (Contour 2), the common every single day get try negatively correlated with the decades during spring and you will fall which have a slightly lower dedication coefficient up Dating mit einem japanischen Mann to 0.68.
Aftereffect of the fresh new sex
Since revealed in earlier times, whenever you are becoming highly linked to the age of lambs, there is a very clear difference between lbs progression centered on sex (Contour step 3), our efficiency revealed that men were always hefty at delivery and you can expanded quickly, this very concurs to your findings advertised by the Ricordeau et al (1984); Chikhi and you may Boujenane (2003) and you will Hassen et al (2004). 36 kilogram at the beginning so you’re able to 0.ninety kg during the age 90 days, while during fall the difference are a bit lower, and you will raised from 0.29 kg within birth so you can 0.60 kilogram in the ninety days.