TNB, NBA, NSB, and LWB of Jiaxing Black sows in different parities are listed in Table 3.
Analysis results identified that sows of the total parities with genotype BB had 1.23 TNB (p< 0.01) and 1.28 NBA (p<0.01) more than those with genotype AB, respectively.
Node 13 is a group of cows with lactation records on 1st and 2nd parities
and 2000- 2001 calving years (1999 to 2001] Node 14 is a group of cows with lactation records on parities
greater than 2 and 2000- 2001 calving years (1999 to 2001]
The first hypothesis is that at earlier parities, the proportion of daughters will be positively associated with the probability of parity progression.
Four multivariate binary logistic regressions were estimated, one each for parities 1-4, to determine a woman's odds of progressing to the next parity according to current sex composition.
In all projections, rates for women with parities
two and over are assumed to remain constant, in line with Australian experience over the period 1991 to 2000.
For higher parities
, the adjusted proportions are as follows:
The glucose concentration was higher (linear, p = 0.07) and tended to be the lowest in 3,300 kcal/kg ME (quadratic, p = 0.06) treatment at 24 h postpartum in parities
1, and 3 (Figure 2).
In India and Nepal, there was a clear shift toward permanent methods at parities
2 and 3 as the number of sons increased.
Days to weaning for second and later parities
were calculated similarly to DTW1, and then the values were added to obtain the sum of days to weaning from the second to the last parity (DTW2).
The means of milk BHBA increased along with SDs through parities
Also, gestation body weight and backfat thickness during different parities
can be used as an indicator for health status and productivity levels of sows (Barnett et al., 2001).