The effect of cereal type (barley versus oats) and rapeseed meal supplementation on the performance of growing and finishing dairy bulls offered grass silage-based diets

Huuskonen, Arto

doi:10.1016/j.livsci.2008.07.023

Cited by 29 publications

(47 citation statements)

References 32 publications

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“…The concentrate protein concentration did not affect the intake of silage and total DMI kg -1 metabolic LW, which was consistent with the results observed with heavy dairy-breed bulls (Huuskonen 2009a). Additionally, in earlier studies with suckled continental-cross bulls (Drennan et al 1994) or heavy steers (Steen 1988b, Steen 1996a, silage intake was unaffected by protein supplement.…”

Section: Effects Of Concentrate Protein Concentration On Animal Perfosupporting

confidence: 91%

“…The digestibility of dietary OM was unaffected by concentrate protein concentration, in accordance with Huuskonen et al (2007Huuskonen et al ( , 2008 and Huuskonen (2009a). In numerous studies (e.g.…”

Section: Effects Of Concentrate Protein Concentration On Animal Perfosupporting

confidence: 65%

“…In several studies, protein supplementation has not increased the growth rate (e.g. Steen 1996a, Huuskonen et al 2008, Huuskonen 2009a), but there is evidence that finishing cattle may respond to supplementary protein in barleybased concentrates when the grass silage digestibility is moderate or low (Waterhouse et al 1985) and in situations where the animals have very high growth potential (Steen 1996b). In some studies, excess protein supplementation has increased carcass fat classification (Steen and Moore 1988, 1989, Steen 1996a) but Berge et al (1993) reported that steers which were given protein supplementation had leaner carcasses than steers not given protein supplementation.…”

Section: Key-wordsmentioning

confidence: 99%

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Effects of grass-red clover silage digestibility and concentrate protein concentration on performance, carcass value, eating quality and economy of finishing Hereford bulls reared in cold conditions

Manninen

Honkavaara

Jauhiainen

2008

AFSci

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The aim of the present experiment was to study the effects of (1) digestibility of grass-red clover silage (GCS) and (2) concentrate protein concentration on the performance, eating quality and economy of Hereford bulls during a six months pre-slaughter period, and reared in cold indoor facilities. Thirty-one bulls with an initial live weight (LW) of 289 kg were selected for a 2 × 2 factorial design experiment consisting of two primary growth GCSs harvested at different maturities (in vitro digestible organic matter (OM) in dry matter (DM), D value: Early-cut, E, 750 g kg -1 DM; Late-cut, L, 699 g kg -1 DM) and two concentrate crude protein concentrations (Medium, M, 170 g kg -1 DM; High, H, 210 g kg -1 DM). The concentrate comprised milled barley and pelleted commercial protein compound and was offered daily on average 3.2 kg DM, including 0.45 and 1.13 kg of rapeseed cake in M and H, respectively. Grass-red clover silage was offered ad libitum. The target cold carcass weight was 330 kg.The proportion of concentrate of the total daily DM intake averaged 0.337 during the entire experiment. Treatments had no effect on the daily intake of GCS, total intake of DM, DM intake kg -1 LW 0.75 and metabolizable energy averaging 6.0 and 9.4 kg DM, 97.4 g and 109.4 MJ, respectively. The digestibility of dietary OM and neutral detergent fibre was lower (p < 0.05, 0.733 vs. 0.769 and 0.625 vs. 0.665) on diet L than on diet E. The animals on diet E tended to consume daily on average 1.29 kg less (p < 0.10) DM kg -1 net weight gain than those on diet L. The time to achieve the target carcass weight was on average 18 days longer (p < 0.01) on diet L than on diet E. During the entire experiment the LW gain averaged 1795 and 1609 g d -1 (p < 0.01) on diets E and L, respectively. The concentrate protein concentration did not affect animal performance. Treatments had no significant effect on the kill-out proportion, EUROP carcass conformation and carcass fat classification which averaged 537 g kg -1 , 6.5 and 3.6, respectively. The eating quality of the tested loins was good. Treatments had only a minor effect on the yield of valuable cuts. It is concluded that the digestibility of silage is important since the early-cut silage improved the growth rate and shortened the finishing period of bulls significantly compared with those fed late-cut silage. The lower yield and, thus, higher unit cost of early-cut silage may, however, invalidate its superiority compared with the late-cut silage. There was no benefit from using concentrate of high protein concentration.

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Section: Effects Of Concentrate Protein Concentration On Animal Perfosupporting

confidence: 91%

Section: Effects Of Concentrate Protein Concentration On Animal Perfosupporting

confidence: 65%

Section: Key-wordsmentioning

confidence: 99%

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Effects of grass-red clover silage digestibility and concentrate protein concentration on performance, carcass value, eating quality and economy of finishing Hereford bulls reared in cold conditions

Manninen

Honkavaara

Jauhiainen

2008

AFSci

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“…A vitamin mixture (Xylitol ADE-Vita: delivered by Suomen Rehu Ltd., Espoo, Finland) was given 50 g per animal weekly. The compositions of mineral and vitamin mixtures used are fully described by Huuskonen et al (2007a) and Huuskonen (2009).…”

Section: Animals Diets and Experimental Designmentioning

confidence: 99%

Performance of growing dairy bulls offered diets based on silages made of whole-crop barley, whole-crop wheat, hairy vetch and grass

Huuskonen¹,

Joki‐Tokola²

2008

AFSci

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The present experiment was conducted to study diet digestibility, feed intake, animal performance and carcass characteristics of growing dairy bulls offered diets based on whole-crop barley, a mixture of whole-crop barley and hairy vetch (Vicia villosa Roth.) or a mixture of whole-crop wheat and hairy vetch relative to moderate digestible grass silage-based diet. The feeding experiment with 24 Finnish Ayrshire and 8 HolsteinFriesian bulls included 4 forage feeding treatments: grass silage (G), whole-crop barley and hairy vetch mixture silage (BHV), whole-crop wheat and hairy vetch mixture silage (WHV) and whole-crop barley silage (B). In all treatments animals were offered silage ad libitum. The amount of concentrate supplementation was 36 g (W 0.75 ) -1 per animal per day for all treatments. The concentrate ration included rolled barley and rapeseed meal. Differences between the treatments were compared using an a priori test (Dunnett's test) so that comparison of the diets was based on the G diet. The animals were fed the experimental diets from day 240 to finish at day 505 of age. During the experiment the average concentrate proportions of G, BHV, WHV and B diets were 437, 424, 426 and 423 g dry matter (DM) (kg DM) -1 , respectively. There were no significant differences in silage DM intake or in the total DM intake (DMI) (kg DM d -1 ) between treatments. However, DMI kg -1 W 0.75 tended to be 3.5% higher (p = 0.09) in the B diet than in the G diet. Due to increasing energy intake, the gain of the bulls was higher with the G diet than with the WHV diet (p < 0.05). BHV and B diets did not differ from the G diet in gain. Treatments had no significant effect on the dressing proportion or carcass conformation. The carcass fat score of WHV bulls was 29% lower (p < 0.05) than that of the G bulls, but BHV and B diets did not differ from the G diet in carcass fatness. The feed conversion rate (DM intake kg -1 carcass gain) of the bulls was better (p < 0.001) and protein conversion (g AAT kg -1 carcass gain) tended to be better (p = 0.07) with the G diet than with the WHV diet. BHV and B diets did not differ from the G diet in any feed conversion parameters. It can be concluded that replacing moderate digestible grass silage with whole-crop wheat and hairy vetch mixture silage decreased the carcass gain of growing dairy bulls due to lower energy intake and poorer feed conversion. Instead, replacing moderate digestible grass silage with whole-crop barley or with whole-crop barley and hairy vetch mixture silage resulted in no differences in the performance or carcass characteristics parameters of growing dairy bulls.

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“…Previous studies have demonstrated energy is the key factor for carcass and meat quality traits of meat ruminants (McEwen et al, 2007;Rhoades et al, 2007;Huuskonen, 2009). Ørskov et al (1974 a,b) found the differences in growth performance and the carcass fatty acid composition of lambs fed diets based on maize and wheat.…”

Section: Introductionmentioning

confidence: 99%

The growth performance and meat quality of goats fed diets based on maize or wheat grain

You¹,

Li²,

Tang³

et al. 2012

J. Anim. Feed Sci.

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A total of 24 four-month-old Liuyang Black wether goats (10±0.2 kg) were allotted to two diets based on wheat and maize to investigate effects of starch sources on the growth performance and meat quality. The experimental period lasted for 100 days, including 10 days for adaptation. Five representative goats from each group were selected for slaughter on the last experimental day. The final body weight and body weight gain of goats in wheat group were lower than those of goats in maize group (P<0.05), however, the marbling score of the Longissimus dorsi of goats in wheat group was greater than that of goats in maize group (P<0.05). Fatty acid composition of Longissimus dorsi muscle was also different between wheat group and maize group, for example, the proportion of C14:0 in Longissimus dorsi muscle of goats in wheat group was greater than that of goats in maize group (P<0.05), and the proportion of C18:3 in Longissimus dorsi muscle of goats in wheat group was smaller than that of goats in maize group. Results indicate that growth performance of the goats Journal of Animal and Feed Sciences, 21, 2012, 587-598 588 MEAT QUALITY OF GOATS AND STARCH SOURCES fed the diet based on maize was better and the proportion of 18:3 fatty acids and marbling score of Longissimus dorsi muscle was smaller in comparison with the goats fed the diet based on wheat.

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The effect of cereal type (barley versus oats) and rapeseed meal supplementation on the performance of growing and finishing dairy bulls offered grass silage-based diets

Cited by 29 publications

References 32 publications

Effects of grass-red clover silage digestibility and concentrate protein concentration on performance, carcass value, eating quality and economy of finishing Hereford bulls reared in cold conditions

Effects of grass-red clover silage digestibility and concentrate protein concentration on performance, carcass value, eating quality and economy of finishing Hereford bulls reared in cold conditions

Performance of growing dairy bulls offered diets based on silages made of whole-crop barley, whole-crop wheat, hairy vetch and grass

The growth performance and meat quality of goats fed diets based on maize or wheat grain

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