Effects of Calliandra and Sesbania on Daily Milk Production in Dairy Cows on Commercial Smallholder Farms in Kenya

Table 3

Descriptive statistics for cow-visit observation level categorical variables for unconditional mixed linear regressions for variables with associations with natural log of daily milk production for 1458 cow-visit observations in 235 cows on 80 smallholder dairy farms near Meru, Kenya, in 2016–2017.

Variable and categories	Percentage in comparison group (n = 227 cow-visit observations)	Mean daily milk production (liters)	Percentage in nutrition group (n = 434 cow-visit observations)	Mean daily milk production (liters)	Percentage in combined group (n = 432 cow-visit observations)	Mean daily milk production (liters)	Percentage in reproduction group (n = 365 cow-visit observations)	Mean daily milk production (liters)	value for difference in ln milk production
Normal appetite									0.001
Yes	98.7% (224)	6.0	99.5% (432)	6.5	99.0% (428)	6.4	99.5% (363)	5.6
No	1.3% (3)	5.5	0.5% (2)	0.0	1.0% (4)	1.0	0.5% (2)	2.0
Skin parasites present									0.128
Yes	90.7% (206)	5.4	84.8% (368)	6.4	84.0% (363)	6.4	96.7% (353)	5.6
No	9.3% (21)	9.3	15.2% (66)	7.1	16.0% (69)	5.6	3.3 % (12)	5.5
Subclinical mastitis									0.131
Yes	20.3% (46)	6.1	21.9% (95)	5.6	14.8% (64)	8.0	11.2% (41)	4.1
No	79.7% (181)	5.9	78.1 % (339)	6.8	85.2% (368)	6.1	88.8% (324)	5.7
Pregnant									<0.0005
Yes	26.0% (59)	5.2	27.6% (120)	5.2	24.1% (104)	5.6	26.3% (96)	4.9
No	74.0% (168)	6.2	72.4% (314)	7.0	75.9% (328)	6.6	73.7% (269)	5.8