Effect of Energy Intake on the Postpartum Interval in Beef Cows and the Adequacy of the Cow's Milk Production for Calf Growth

Bartle, S. J.; Males, J. R.; Preston, R. L.

doi:10.2527/jas1984.5851068x

Cited by 33 publications

(25 citation statements)

References 8 publications

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“…Bartle et al (1984) reported a beneficial effect of such starter feed offered from the ninth week post partum when daily milk yield was 5 kg. However, in higher producing cows, the benefit from this starter feed was delayed to the fourth month (Prichard et al, 1989).…”

Section: Discussionmentioning

confidence: 99%

Effects of pre-weaning concentrate feeding on calf performance, carcass and meat quality of autumn-born bull calves weaned at 90 or 150 days of age

Alibés

Mata

Ripoll

et al. 2008

Animal

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A study was conducted to evaluate the effect of pre-weaning concentrate feeding in early-weaned (EW, day 90) or traditionally weaned (TW, day 150) autumn-born beef calves on growth, feed intake and feed efficiency, and carcass and meat quality. Twenty-eight male calves were either EW or TW, and offered a starter concentrate (S) or no additional feed (NS) during the pre-weaning period. Therefore, four management strategies were tested: EWS, EWNS, TWS and TWNS. Growth patterns were affected by management strategy. From day 90 to 150, TWNS calves presented a substantially lower average daily gain (ADG) than their counterparts, which had similar performance. During the finishing phase (from day 150 to slaughter at 450 kg live weight), EWS calves had the lowest ADG. Daily feed intake or efficiency in the finishing phase was unaffected by previous management. Serum IGF-I concentrations at day 90 and slaughter did not differ with management strategy, but early weaning and pre-weaning concentrate feeding increased IGF-I concentrations at day 150. Circulating leptin concentrations were unaffected by age at weaning and pre-weaning concentrate feeding, except for leptin concentrations at slaughter, which were higher in S calves than in NS calves. Total concentrate intake from birth to slaughter and the concomitant feed costs were higher for EWS and EWNS calves than for TWNS and TWS ones. However, cow feed costs were lower for cows whose calves had been early weaned. Concerning carcass quality, early weaning improved dressing percentage and increased fatness score, and particularly TWNS calves presented a poorer conformation. Meat quality was not affected by management strategy. Considering the economic performance, TWS, EWNS and EWS strategies yielded a similar economic margin, whereas TWNS would be the least advisable strategy when calves are fattened in the farm until slaughter.

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Section: Discussionmentioning

confidence: 99%

Effects of pre-weaning concentrate feeding on calf performance, carcass and meat quality of autumn-born bull calves weaned at 90 or 150 days of age

Alibés

Mata

Ripoll

et al. 2008

Animal

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“…energy supply in the diet (Houghton et al 1990;Marston and Lusby 1995). When energy reserves at calving are insufficient to compensate for a limited energy intake postpartum, responses in calf gain to energy have been observed (Bartle et al 1984;Houghton et al 1990;Laflamme and Connor 1992).…”

Section: Effect Of Protein Level On the Response To Proteinmentioning

confidence: 99%

Influence of post-calving supplemental protein on calf performance and reproductive efficiency for beef cows fed silage

Charmley¹,

Small²,

McRae³

1999

Can. J. Anim. Sci.

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. 1999. Influence of post-calving supplemental protein on calf performance and reproductive efficiency for beef cows fed silage. Can. J. Anim. Sci. 79: 97-106. Protein supplementation for winter-calving beef cows between calving and turnout to pasture was studied in two trials. Changes in cow body weight (BW) and condition and calf BW gains were recorded from calving to weaning in the fall. Reproductive performance was monitored, and in trial 2, milk production was determined. In trial 1, multiparous silage-fed cows were allocated to one of five levels of corn gluten meal (CGM): 0, 200, 400, 600 and 800 g d -1 . In the second trial, cows were allocated to either restricted or ad libitum silage feeding in combination with three protein supplements: no protein, 400 g d -1 CGM or 475 g d -1 soybean meal (SBM). In trial 1, cows gained weight during supplementation, but on pasture they lost weight (linear effect, P = 0.10). Calf gains and weights at turnout and weaning showed a quadratic response to protein supplementation (P < 0.05). There was a trend toward a linear decline in days to first service with increasing levels of CGM (P < 0.10). In trial 2, cows on restricted silage feeding lost weight (P < 0.05) and body condition (P < 0.10), whereas those fed ad libitum silage gained weight and condition. On pasture, this pattern of weight change was reversed (P < 0.05). Protein supplementation did not influence BW change but tended to cause a lower body condition score at turnout (P = 0.10). Restricting silage intake to the cow did not affect calf performance, but protein supplementation increased gains both during supplementation and on pasture, thus increasing weaning weights (P < 0.05). When silage was fed ad libitum, SBM was more effective than CGM for increasing calf gain. However, when silage was restricted, CGM was more effective. Restricting silage intake did not impair milk production, but feeding CGM increased milk production (P < 0.05). For ad libitum-fed cows, protein supplementation increased pregnancy rate; restricting feed had the opposite effect. Our data suggest that protein supplementation to silage-fed beef cows in good body condition can increase calf performance; however, the level of supplementation is critical, and possible adverse effects on breeding have to be taken into account, particularly with cows in negative energy balance after calving.

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“…Calf survival rates and growth are reduced due to greater calving difficulties, reduced quality and quantity of colostrum milk and reduced maternal properties. A low level of feeding may also affect suckler cow milk yield as well as calf growth rate (Hodgson et al 1980, Bartle et al 1984. However, the most important and immediate effect of undernutrition in the beef cow is a delay in cycling and ovulation and thus, depressed pregnancy rates (Holness et al 1978.…”

Section: Introductionmentioning

confidence: 99%

Influence of pre partum and post partum plane of nutrition on the performance of crossbred suckler cows and their progeny

Manninen¹,

Huhta²

2001

AFSci

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The objective of the experiment was to study the effects of two pre partum and four post partum feeding levels on the performance of 28 Hereford-Ayrshire and 30 Limousine-Ayrshire spring-calving mature cows in calf to Limousin and their calves from the beginning of indoor feeding until the end of grazing under Finnish climatic conditions. A 2 × 2 factorial design experiment consisted of a low (L) and moderate (M) pre partum feeding levels based on hay and straw and two post partum concentrate feeding levels, 1.5 and 3.5 kg/d (1 and 2, respectively). The treatments were replicated across the genotypes. For feeding level L the amount of roughage offered was restricted to proportionately 0.7 on a dry matter (DM) basis of feeding level M. Milled barley was offered at 1.3 kg DM/ d to all cows 72 days pre calving. The experiment was divided into two parts, an indoor feeding (215 days) and grazing period (114 days). The indoor feeding period included three periods, from start of the study to the beginning of additional concentrate feeding (P1) and feeding additional concentrate supplements both pre (P2) and post calving (P3).On feeding level M cows had a daily intake of 9.1 and 10.4 kg DM during periods P1 and P2, respectively. During period P3 intake was 10.4 and 12.0 kg DM for 1 and 2. Corresponding values for feeding level L were 6.7, 8.0, 8.0 and 9.7 kg DM, respectively. At the onset of grazing, cows on feeding level M were 47 kg heavier (P<0.05) than those on feeding level L. At pasture, cows fed feeding level L had a higher (P<0.001) live weight gain (LWG) than those on feeding level M. Cows fed less concentrate lost more (P<0.001) live weight from calving to grazing than those receiving higher amounts (-1241 vs. -588 g/d) but compensated for these losses (P<0.05) at pasture. Post partum concentrate feeding did not affect cow condition. During indoor feeding cows receiving a lower level of feeding lost more (P<0.05) condition (-0.67 vs.-0.09 for L and M, respectively). Pre partum treatments did not lead to calving difficulties. Treatments had no effect on calf LWG pre weaning. Cows had a mean milk production of 11.8 kg/d and an average conception rate of 86.8%. Cows on diet L1 appeared to receive enough energy for satisfactory cow and calf performance. The Manninen, M. & Huhta, H. Effects of feeding levels on performance of suckler cowscurrent data indicates that feeding levels pre calving have a greater significance on cow and calf performance than the plane of nutrition post calving.

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Effect of Energy Intake on the Postpartum Interval in Beef Cows and the Adequacy of the Cow's Milk Production for Calf Growth

Cited by 33 publications

References 8 publications

Effects of pre-weaning concentrate feeding on calf performance, carcass and meat quality of autumn-born bull calves weaned at 90 or 150 days of age

Effects of pre-weaning concentrate feeding on calf performance, carcass and meat quality of autumn-born bull calves weaned at 90 or 150 days of age

Influence of post-calving supplemental protein on calf performance and reproductive efficiency for beef cows fed silage

Influence of pre partum and post partum plane of nutrition on the performance of crossbred suckler cows and their progeny

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