Effects of supplements differing in fatty acid profile to late gestational beef cows on cow performance, calf growth performance, and mRNA expression of genes associated with myogenesis and adipogenesis

Table 5 Effects of fatty acid supplementation on cow body weight and body condition score^a

Item	CON^b	PUFA^c	SEM	P-value
Cow BW, kg
Initial (d − 77)	604	597	12.4	0.62
Mid supplementation (d − 42)	642	632	12.6	0.43
Pre calving (d − 18)	652	642	12.7	0.46
Calving (5 ± 2.4 d post-calving)	597	589	13.1	0.57
AI (d 78)	610	595	14.5	0.34
AI pregnancy determination (d 133)	597	587	15.6	0.52
Weaning (d 186)	540	526	14.5	0.39
Cow BCS
Initial	6.2	6.2	0.14	0.89
Mid supplementation	6.3	6.4	0.13	0.47
Pre calving	6.4	6.3	0.16	0.36
Calving	6.1	6.2	0.13	0.45
AI	5.5	5.6	0.14	0.41
AI pregnancy determination	5.4	5.3	0.15	0.77
Weaning	4.8	4.8	0.18	0.99

^aBW Body weight; AI Artificial insemination; BCS Body condition score
^bCON = cows were supplemented soybean hulls mixed with 155 g DM/cow/d EnerGII (Virtus Nutrition LLC, Corcoran, CA) for 77 ± 6 d prepartum
^cPUFA = cows were supplemented soybean hulls mixed with 80 g DM/cow/d Strata + 80 g DM/cow/d Prequel (Virtus Nutrition LLC, Corcoran, CA) for 77 ± 6 d prepartum

ISSN: 2049-1891