Effects of dry matter intake restriction on diet digestion, energy partitioning, phosphorus retention, and ruminal fermentation by beef steers

Clark, Jonathan H.; Olson, K. C.; Schmidt, Ty B; Linville, M. L.; Alkire, Deke O.; Meyer, Donald L.; Rentfrow, G.; Carr, Chad; Berg, E. P.

doi:10.2527/jas.2006-741

Cited by 12 publications

(13 citation statements)

References 28 publications

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“…The percentage of GEI lost as urine in food restrictions was higher, 4.1% compared to that shown in the ad libitum phase in F1 HxG animals, Gyr cows showed no difference between periods. [ 12 ], evaluating dry matter restriction levels like those of the present study (10 to 20%) reported increased energy lost as urine depending on the dietary restriction.…”

Section: Resultssupporting

confidence: 49%

“…The percentage of GE lost as feces was higher in F1 HxG (23.3%) compared to Gyr (20.7%), as occurred in the 1 st period ( Fig 1 ). [ 12 ], evaluating the scheduled dietary restriction in finishing steers, did not observe differences in the percentage of energy lost in the feces between the different restrictions, 10 and 20%, being these values lower than that presented in the ad libitum phase. MEI was similar among 2 nd , 3 rd and 4 th , being higher in F1 HxG in relation to Gyr.…”

Section: Resultsmentioning

confidence: 96%

“…Energy lost as urine was similar between genetic groups, with an average value of 3.7% GEI. [ 11 ] and [ 12 ] found values of 3.5 to 6% EB lost as urine in lactating and growth animals.…”

Section: Resultsmentioning

confidence: 99%

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Energy metabolism and partition of lactating Zebu and crossbred Zebu cows in different planes of nutrition

et al. 2018

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The aim of this study was to determine the energy metabolism and partition of lactating Gyr and F1 Holstein x Gyr (F1 HxG) cows in different planes of nutrition. Six F1 HxG and six Gyr cows with 130 days in milking (DIM) fed corn silage and concentrate were evaluated. The experiment consisted of four periods with different levels of feeding: 1st ad libitum dry matter intake (DMI) and the others with 5, 10 and 20% restricted DMI, related to the first one. An apparent digestibility assay was performed before measurements in the respiration chamber. Total feces were collected for three days. The cows were confined for 24h in the chamber in each period to determine methane and heat production (HP). F1 HxG had higher gross energy intake (GEI), metabolisable energy intake (MEI) and digestible energy intake (DEI). GE lost in feces was higher in F1 HxG (23.7% GEI) than in Gyr (20.5%) cows. Energy lost as methane and urine was similar between the groups. The metabolisability (q) was 0.67, and the efficiency of converting ME to NE (k) was 0.56. There was no difference in the energy requirements for maintenance between breeds (426.6 MJ/kg BW0,75 average value). The energy requirements for lactation were higher in F1 HxG animals due to the higher volume of milk produced, since there was no difference in energy requirements for production of one kg of milk.

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Section: Resultssupporting

confidence: 49%

Section: Resultsmentioning

confidence: 96%

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Energy metabolism and partition of lactating Zebu and crossbred Zebu cows in different planes of nutrition

et al. 2018

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“…Malnutrition causes imbalance in glucose homeostasis, and the decrease of insulin in circulation induces the reduction of feed intake in dairy cows [ 16 ]. Therefore, the feed intake reduction in IR cows might have inhibited the volatile fatty acid production in the rumen and thus suppressed gluconeogenesis in the liver [ 9 ]. Lower energy status, such as lower BCS, before calving of IR group in this study might be caused by long-term malnutrition from previous lactation.…”

Section: Discussionmentioning

confidence: 99%

Relationship between the degree of insulin resistance during late gestation and postpartum performance in dairy cows and factors that affect growth and metabolic status of their calves

Kawashima

Munakata

Shimizu

et al. 2016

The Journal of Veterinary Medical Science

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This study aimed to investigate the effects of insulin resistance (IR) during the close-up dry period on the metabolic status and performance of dairy cows as well as to determine the effects on body weight (BW) and metabolic status of their calves. An insulin tolerance test (ITT) was conducted by administering 0.05 IU/kg BW of insulin to 34 multiparous Holstein cows at 3 weeks prepartum. Blood samples were collected at 0, 30, 45 and 60 min after insulin injection, and cows were divided into two groups based on the time required for glucose to reach the minimum levels [non-IR (NIR), 45 min (n=28); and IR, 60 min (n=6)]. Blood or milk sampling and body condition score (BCS) estimation were performed twice weekly during the experimental period. Blood samples from calves were collected immediately after birth. Cows with IR showed lower BCS (P<0.05) and serum urea nitrogen (P<0.05) and glucose concentration (P=0.05) before calving, and lower serum non-esterified fatty acid concentration (P<0.05) and milk yield (P<0.05) and earlier resumption of luteal activity (P<0.05) after calving; their calves showed lower BW (P<0.05) and plasma insulin-like growth factor-I concentration (P<0.001) and higher plasma insulin concentration (P<0.05). In conclusion, IR at 3 weeks prepartum in dairy cows is related to postpartum metabolic status and performance along with growth and metabolic status of their calves.

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“…Residual feed intake was independent of BC in yearling ewes fed ad libitum or at a maintenance restricted feeding level (Redden et al, 2013). Clark et al (2007) fed steers at 3 levels of feed consumption (ad libitum or 90 or 80% of ad libitum) with a given ME intake. They concluded that improvements in feed efficiency by this manner of restriction do not appear to be related to changes in diet digestion or ME intake, similar to what was observed in the present study.…”

Section: Methodsmentioning

confidence: 99%

Growth performance, feed digestibility, body composition, and feeding behavior of high– and low–residual feed intake fat-tailed lambs under moderate feed restriction1

Sharifabadi

Naserian

Valizadeh

et al. 2016

Journal of Animal Science

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Two experiments were conducted to evaluate the effect of moderate feed restriction on productivity of lambs classified on the basis of phenotypic expression of residual feed intake (RFI). In Exp. 1, 58 fat-tailed Kurdi ram lambs (32.1 ± 4.2 kg BW) were individually fed, ad libitum, a pelleted diet (35% alfalfa hay and 65% concentrate). Feed intake and ADG were determined for a 6-wk period and 3 feed efficiency measures including RFI, G:F, and partial efficiency of maintenance (PEM) were calculated. The lambs were sorted based on RFI and the 16 highest RFI (RFI ≥ mean + 0.5 SD) and 16 lowest RFI (RFI ≤ mean - 0.5 SD) lambs were subjected to body composition (BC) and DM digestibility (DMD) analysis. Feeding behavior traits (FB) were also evaluated for 24 h using a regular 5-min interval observation method. The high- and low-RFI lambs (14 lambs/RFI group) so classified in Exp. 1 were used in Exp. 2. Half of the lambs in each RFI group were randomly selected to be fed ad libitum or 85% of ad libitum (restricted feeding), which resulted in 4 experimental groups: 1) ad libitum high-RFI, 2) feed restricted high-RFI, 3) ad libitum low-RFI, and 4) feed restricted low-RFI. The lambs were fed the same diet as Exp. 1, and growth efficiency during a 6-wk test period as well as BC, DMD, and FB were also determined in Exp. 2. In Exp. 1, the low-RFI lambs consumed 14% ( < 0.01) less feed than high-RFI lambs. Differences were also observed between high- and low-RFI groups for G:F ( = 0.01), RFI ( < 0.01), and PEM ( < 0.01) in Exp. 1, but no differences were detected between high- and low-RFI lambs for ADG ( = 0.79), DMD ( = 0.42), BC ( > 0.72), and FB ( > 0.24). In Exp.2, the restriction feeding regime negatively affected ADG ( < 0.01) and G:F ( = 0.02) in low-RFI lambs, whereas G:F ( = 0.02) and PEM ( < 0.01) were improved in high-RFI lambs under the feed restriction condition. No effects of feed restriction on DMD ( = 0.87) and BC ( > 0.05) were observed. The lambs fed at the restricted level of intake presented a greater time ( < 0.01) and rate ( = 0.01) of eating than those fed ad libitum. Although bunk visits and feeding events were decreased ( < 0.01) with feed restriction, no interaction ( > 0.05) was detected between RFI phenotype and feeding regime for FB. In summary, feeding high-RFI lambs at 85% of ad libitum level improved G:F with no effect on ADG, whereas growth performance was reduced by feeding low-RFI lambs at 85% of ad libitum. However, these changes in feed efficiency were not related to DMD, BC, or FB.

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Effects of dry matter intake restriction on diet digestion, energy partitioning, phosphorus retention, and ruminal fermentation by beef steers

Cited by 12 publications

References 28 publications

Energy metabolism and partition of lactating Zebu and crossbred Zebu cows in different planes of nutrition

Energy metabolism and partition of lactating Zebu and crossbred Zebu cows in different planes of nutrition

Relationship between the degree of insulin resistance during late gestation and postpartum performance in dairy cows and factors that affect growth and metabolic status of their calves

Growth performance, feed digestibility, body composition, and feeding behavior of high– and low–residual feed intake fat-tailed lambs under moderate feed restriction1

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