Influence of Prepartum Fat Supplementation on Subsequent Beef Cow Reproduction and Calf Performance

Alexander, Brenda M.; Hess, B. W.; Hixon, D. L.; Garrett, B.L.; Rule, Daniel C.; McFarland, M.; Bottger, J. D.; Moss, G. E.; Simms, D.D.

doi:10.15232/s1080-7446(15)31545-x

Cited by 27 publications

(26 citation statements)

References 25 publications

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“…Supplement composition did not alter concentrations of milk urea N (4.8 mg/dL; P = 0.97), protein (2.8%; P = 0.47), butterfat (3.6%; P = 0.35), lactose (5.1%; P = 0.09), or solids-not-fat (9.0%; P = 0.32) measured during early lactation. In agreement with our observations, Alexander et al (2002) reported that prepartum lipid supplementation had no effect on milk production, percentage of milk fat, or percentage of solids-not-fat measured at 30, 60, and 90 d postpartum.…”

Section: Expsupporting

confidence: 93%

Effects of prepartum supplementation of linoleic and mid-oleic sunflower seed on cow performance, cow reproduction, and calf performance from birth through slaughter, and effects on intake and digestion in steers1

Banta

Lalman

Owens

et al. 2011

Journal of Animal Science

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Two experiments were conducted to determine the effects of sunflower seed supplements with varying fatty acid profiles on performance, reproduction, intake, and digestion in beef cattle. In Exp. 1, 127 multiparous spring-calving beef cows with free-choice access to bermudagrass hay were individually fed 1 of 3 supplements for an average of 83 d during mid to late gestation. Supplements (DM basis) included 1) 1.23 kg/d of a soybean hull-based supplement (control treatment); 2) 0.68 kg/d of linoleic sunflower seed plus 0.23 kg/d of the control supplement (linoleic treatment); and 3) 0.64 kg/d of mid-oleic sunflower seed plus 0.23 kg/d of the control supplement (oleic treatment). During the first 62 d of supplementation, the BW change was 11, 3, and -3 kg for cows fed the control, linoleic, and oleic supplements, respectively (P < 0.001). No difference in BW change was observed during the subsequent period (-65 kg, P = 0.83) or during the entire 303-d experiment (-31 kg, P = 0.49). During the first 62 d of supplementation, cows fed sunflower supplements tended (P = 0.08) to lose more body condition than cows fed the control diet, but BCS was not different (P > 0.22) for any subsequent measurement. At the beginning of the breeding season, the percentage of cows exhibiting luteal activity was greater for cows fed the control diet (43%; P = 0.02) than for cows fed either linoleic (20%) or oleic (16%) supplementation; however, first-service conception rate (67%; P = 0.22) and pregnancy rate at weaning (92%; P = 0.18) were not different among supplements. No differences were detected in calf birth (P = 0.46) or weaning BW (P = 0.74). In Exp. 2, 8 ruminally cannulated steers were used to determine the effects of sunflower seed supplementation on forage intake and digestion. Treatments (DM basis) included 1) no supplement; 2) a soybean hull-based supplement fed at 0.29% of BW/d; 3) whole linoleic sunflower seed fed at 0.16% of BW/d; and 4) whole high-oleic sunflower seed fed at 0.16% of BW/d. Hay intake was not influenced (P = 0.25) by supplement (1.51% of BW/d); however, DMI was greatest (P < 0.01) for steers fed the soybean hull-based supplement (1.93% of BW/d). Sunflower seed supplementation reduced (P < 0.01) NDF and ADF digestibility while increasing (P < 0.01) apparent CP and apparent lipid digestibility. In conclusion, whole sunflower seed supplementation resulted in reduced cow BW gain during mid to late gestation, but this reduction did not influence subsequent cow BW change, pregnancy rate, or calf performance.

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Section: Expsupporting

confidence: 93%

Effects of prepartum supplementation of linoleic and mid-oleic sunflower seed on cow performance, cow reproduction, and calf performance from birth through slaughter, and effects on intake and digestion in steers1

Banta

Lalman

Owens

et al. 2011

Journal of Animal Science

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“…The supplementation during the prepartum period has been evaluated throughout different experiments, but most of the studies were done through long periods of supplementation, generally between 60 and 120 days Grings et al 2001;Alexander et al 2002;Banta et al 2006;Radunz et al 2010). However, the high variation of the relationship of prices (meat-grain) make this technology less adopted by farmers that manage beef cows under grazing conditions and in unsubsided production systems.…”

Section: Introductionmentioning

confidence: 99%

Influence of a short-term prepartum supplementation on beef cows and calves’ performance in pastoral conditions

et al. 2016

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Multiparous Aberdeen Angus · Hereford crossbred cows were used to evaluate the effect of supplementation during the last month of gestation on milk production and composition and cow and calf performance. Cows were assigned randomly to supplement (SUP; n = 18) or Control (CON; n = 17) treatments. Supplemented cows were offered (1 kg/100 kg bodyweight) a mix of sorghum grain and protein concentrated (67 : 33 as-fed basis; 16% crude protein, 11% acid detergent fibre) from (mean AE s.e.m.) 33 AE 1.4 days prepartum until calving. Before, during, and after the supplementation period, cows grazed together a native pasture paddock with average forage mass available of 1345 kg/ha of dry matter (10.4% crude protein, 45.2% acid detergent fibre). Cows were blood sampled weekly from -42 to 112 days postpartum (DPP) for serum progesterone and non-esterified fatty acids (NEFA) concentrations. Maximum follicle diameter was measured by ovarian ultrasound examination at 60 DPP. The breeding period lasted 60 days and started at 60 AE 1.4 DPP. There was an interaction between treatment and time on BCS (P < 0.0005). Before calving there were no differences in BCS between cows in SUP and in CON, but at calving SUP cows tended (P = 0.10) to present greater BCS and from calving to 84 DPP BCS was greater (P < 0.05) in SUP with respect to CON cows. There was an interaction between treatment and time on plasma NEFA concentrations (P < 0.0005). During the last month of gestation NEFA concentrations were reduced in SUP cows but there were no differences between treatments during the postpartum period. Milk production decreased linearly from 30 to 150 DPP but there was no effect of treatment on it. Calf bodyweight at birth and at weaning did not differ between treatments (37.5 AE 2.4 and 175.6 AE 2.4 kg, respectively). The probability of cows presenting follicles with diameter !10 mm was greater (P < 0.05) in SUP than CON cows. The length of the postpartum period did not differ between treatments. The probability of cows cycling during the first 90 DPP and pregnancy rate tended (P = 0.08) to be greater in SUP than in CON cows. Supplementation in winter and for only 30 days in the last month of gestation of beef cows under grazing conditions, increased cows' BCS without increasing BW of calves, and tended to improve reproductive performance.

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“…Supplementation prepartum with 1.6 kg of whole soybeans/ d for 45 d improved first-service conception rate in a natural service breeding season, and 30-d supplementation prepartum increased first-service pregnancy rates to synchronized AI (Graham et al, 2001). In other studies, prepartum supplementation with fat did not affect postpartum interval (Alexander et al, 2001;Geary et al, 2002) or pregnancy rate (Alexander et al, 2001;Burns et al, 2002;Geary et al, 2002). Grings et al (2001) reported an improvement in pregnancy rates in 3-yr-old cows calving in February and 5-yr-old cows calving in April when fed supplements containing 14.8% ether extract from safflower seeds compared with control cows fed a 2.6% fat supplement.…”

Section: Discussionmentioning

confidence: 86%

“…Additionally, Alexander et al (2001) found that fat supplementation during the prepartum period did not influence calf weight gains, despite increased milk production from fat-supplemented cows. Other reports support the absence of an effect of fat supplementation on milk production (Lake et al, 2003) or weaning weight (Geary et al, 2002).…”

Section: Discussionmentioning

confidence: 92%

Effects of supplementation of whole corn germ on reproductive performance, calf performance, and leptin concentration in primiparous and mature beef cows1

Martin

Rasby

Brink

et al. 2005

Journal of Animal Science

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A 2-yr study using primiparous and multiparous, spring-calving, crossbred beef cows was conducted to evaluate the effects of supplemental whole corn germ on reproductive performance, calf performance, and serum leptin concentrations. Each year, cows were blocked by age and BCS and assigned randomly to one of three treatments: PRE (n = 115) cows received 1.14 kg/d (DM basis) of whole corn germ for approximately 45 d before calving; POST (n = 109) cows were fed 1.14 kg/d of whole corn germ for approximately 45 d after calving; and control cows (n = 118) were fed similar energy and protein from dry-rolled corn (1.82 kg of DM/d) for 45 d before and after calving. Additionally, PRE cows were grouped with controls after calving, and POST cows were grouped with control cows before calving, so that corn germ-supplemented cows received the control supplement in the alternate feeding period. Cow BW (538 ± 13 kg) and BCS (5.4 ± 0.13) did not differ among treatments at any time during the experiment. Calf birth weight (39 ± 2 kg), weaning weight (225 ± 7 kg), and age-adjusted weaning weight (234 ± 8 kg) did not differ because of dam supplementation regimen. Treatment did not affect the proportion of cows exhibiting ovarian luteal activity before the start

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Influence of Prepartum Fat Supplementation on Subsequent Beef Cow Reproduction and Calf Performance

Cited by 27 publications

References 25 publications

Effects of prepartum supplementation of linoleic and mid-oleic sunflower seed on cow performance, cow reproduction, and calf performance from birth through slaughter, and effects on intake and digestion in steers1

Effects of prepartum supplementation of linoleic and mid-oleic sunflower seed on cow performance, cow reproduction, and calf performance from birth through slaughter, and effects on intake and digestion in steers1

Influence of a short-term prepartum supplementation on beef cows and calves’ performance in pastoral conditions

Effects of supplementation of whole corn germ on reproductive performance, calf performance, and leptin concentration in primiparous and mature beef cows1

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