Maize silage particle length modulates feeding patterns and milk composition in loose-housed lactating Holstein cows

Zebeli, Qendrim; Ametaj, Burim N.; Junck, B.; Drochner, W.

doi:10.1016/j.livsci.2008.12.004

Cited by 14 publications

(9 citation statements)

References 23 publications

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“…Similar observations were reported by Lancaster et al, (2009) in which the bulls fed a less energy-dense diet containing cottonseed hulls had greater meal duration (118 vs, 85 min) and meal frequency (8,66 vs, 7,74) than the bulls fed the energy-dense diet without the cottonseed hulls, Zebeh et al, (2009) also reported that dairy cows sorted against long particle lengths, whereas Greter et al, (2008) found that sorting increased in dairy heifers with increasing straw in the diet. Similar observations were reported by Lancaster et al, (2009) in which the bulls fed a less energy-dense diet containing cottonseed hulls had greater meal duration (118 vs, 85 min) and meal frequency (8,66 vs, 7,74) than the bulls fed the energy-dense diet without the cottonseed hulls, Zebeh et al, (2009) also reported that dairy cows sorted against long particle lengths, whereas Greter et al, (2008) found that sorting increased in dairy heifers with increasing straw in the diet.…”

Section: Discussionsupporting

confidence: 77%

Phenotypic and genetic relationships among feeding behavior traits, feed intake, and residual feed intake in steers fed grower and finisher diets1

Durunna

Wang

Basarab

et al. 2011

Journal of Animal Science

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Data from a 3-yr feeding trial of crossbred steers (n = 331) were used to examine the relationship between feeding behavior traits and feed efficiency in steers fed grower and finisher diets, successively. There were 2 feeding periods each year whereby the steers were fed a grower diet in the first feeding period (P1) and a finisher diet in the second feeding period (P2). Each feeding period lasted for a minimum of 10 wk, ad libitum. In addition to feed intake, records on 3 measures of feeding behavior [feeding duration (FD), head-down time (HDT), and feeding frequency (FF)] were collected using the GrowSafe feeding system. Residual feed intake (RFI) was calculated by regression, after which the steers were classified as low (<0.5 SD), medium (±0.5 SD), or high (>0.5 SD) from the mean. The steers had greater (P < 0.001) FD, HDT, and FF when the grower diet was fed but greater feeding rate (FR) when the finisher diet was fed. Including the measures of feeding behavior as covariates to the feed intake prediction model containing ADG, metabolic midweight, and ultrasound backfat accounted for more variation in DMI than models that did not contain these additional parameters. The FD and HDT were significantly different (P < 0.05) among the RFI classes regardless of the feeding period, whereas no differences (P > 0.90) were found for FR among the RFI classes. For the growing period and finishing period, respectively, FD had phenotypic correlations with HDT (0.79, 0.83), FF (0.14, 0.55), DMI (0.38, 0.34), and FR (-0.34, -0.21). Heritability estimates in P1 and P2 for FD, HDT, and FF were 0.25 ± 0.16, 0.14 ± 0.11; 0.14 ± 0.15, 0.09 ± 0.10; and 0.56 ± 0.19, 0.59 ± 0.18, respectively. Genetic correlations between P1 and P2 were 0.91 ± 0.26, 0.93 ± 0.37, and 0.94 ± 0.11 for FD, HDT, and FF, respectively. The results suggest that it may be appropriate to include feeding behavior traits as covariates to indicate measure(s) of animal activity in the calculation of RFI. Feeding behavior phenotypes were greater during the grower-fed period than the finisher-fed period. During these feeding periods, efficient steers exhibited fewer FF, shorter FD, and shorter HDT than inefficient steers.

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Section: Discussionsupporting

confidence: 77%

Phenotypic and genetic relationships among feeding behavior traits, feed intake, and residual feed intake in steers fed grower and finisher diets1

Durunna

Wang

Basarab

et al. 2011

Journal of Animal Science

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“…However, a moderate decrease of PS is reported to promote ruminal digestion due to increasing available surface area for attachment of ruminal fibrolytic bacteria , and this may also increase feed intake, hence increasing nutrient supply to high-producing dairy cows (Yang and Beauchemin, 2006a). In addition, decreasing forage PS improves the uniformity of TMR resulting in less sorting consumption (Zebeli et al, 2009), which may be beneficial particularly in terms of reducing the risk of ruminal disorders (Krause and Oetzel, 2006). Thus, optimization of forage PS is an important aspect in dairy cattle nutrition particularly in TMR feeding.…”

Section: Forage Particle Size and Measurement Of Physically Effectivementioning

confidence: 99%

“…It has long been recognised that short-term regulation of feed intake is a function of meal size and meal frequency (Forbes, 1985), whereby both latter variables are affected by forage PS (Zebeli et al, 2009), concentrate level (Tolkamp et al, 2002), and forage source (Mazzenga et al, 2009). A high feed intake is essential for high-producing dairy cows in achieving high milk production and maintaining their productivity.…”

Section: Effects Of Dietary Fibre Content and Degradable Starch On Drmentioning

confidence: 99%

Balancing diets for physically effective fibre and ruminally degradable starch: A key to lower the risk of sub-acute rumen acidosis and improve productivity of dairy cattle

et al. 2010

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“…In the study by Gouvêa et al (2016), in which replacing GM with citrus pulp had no effect on energy values, the processing of citrus pulp was not described. Zebeli et al (2009) demonstrated that lowering the particle size of the diet modulated the selective consumption of feedstuffs and improved intake of energy and nutrients of dairy cows. If that were the case, grinding of PCP would be expected to increase intake.…”

Section: Discussionmentioning

confidence: 99%

Effects of energy sources and inclusion levels of concentrate in sugarcane silage-based diets of finishing Nellore young bulls: Feeding behaviour, performance and blood parameters

et al. 2019

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Replacing ground maize (GM) with steam-rolled maize typically increases feed efficiency in maize-silage-based diets. However, little is known about optimal carbohydrate supplementation in sugarcane silage-based diets. The objective was to quantify the effect of partially replacing GM with steam-rolled maize (SRM) or pelleted citrus pulp (PCP) at two concentrate levels (600 or 800 g/kg DM) in sugarcane-based diets on feeding behaviour, performance and blood parameters of finishing Nellore bulls. One hundred and eight young bulls were allocated to 36 pens in a randomized block design and fed for 84 d. Feeding 800 g/kg concentrate decreased time spending eating and ruminating, but improved G:F ratio, hot carcass weight and carcass dressing, compared to 600 g/kg concentrate. Bulls fed SRM and PCP diets with 600 g/kg concentrate had lower intake compared to GM. Both final weight and average daily gain decreased when bulls were fed PCP and SRM with 600 g/kg concentrate compared to GM diets, and when fed with PCP and 800 g/kg concentrate. Substituting PCP for GM decreased gain efficiency, carcass weight, rumination time and intake efficiency, indicating that the bulls consumed less feed per hour spent eating. Substituting SRM for GM increased backfat thickness and blood urea concentration. In conclusion, the replacement of GM with PCP reduces intake and enhances selection against large particles, decreasing rumination, performance and final carcass weight and dressing. Replacement of GM with SRM increases blood urea and fat deposition, with no impact on performance.

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Maize silage particle length modulates feeding patterns and milk composition in loose-housed lactating Holstein cows

Cited by 14 publications

References 23 publications

Phenotypic and genetic relationships among feeding behavior traits, feed intake, and residual feed intake in steers fed grower and finisher diets1

Phenotypic and genetic relationships among feeding behavior traits, feed intake, and residual feed intake in steers fed grower and finisher diets1

Balancing diets for physically effective fibre and ruminally degradable starch: A key to lower the risk of sub-acute rumen acidosis and improve productivity of dairy cattle

Effects of energy sources and inclusion levels of concentrate in sugarcane silage-based diets of finishing Nellore young bulls: Feeding behaviour, performance and blood parameters

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