scholarly journals The nutritive value of frosted wheat for sheep

2001 ◽  
Vol 41 (2) ◽  
pp. 205 ◽  
Author(s):  
E. C. Richardson ◽  
A. G. Kaiser ◽  
J. W. Piltz

The effect of frosting on the nutritive value of wheat grain was determined in a digestibility experiment with sheep. Thirty-six Merino wethers were maintained on diets of lucerne chaff (30%) and whole wheat grain (70%) which was sourced from either severely frosted (SF), lightly frosted (LF) or unfrosted (UF) crops. The experiment was conducted in a repeated balance study with 8 replications per treatment diet for each of the 7 treatment diets, new animals were assigned to the chaff control (treatment diet 8). The diets were offered at the liveweight maintenance level of feeding and the digestibility of the wheat component was calculated by adjusting for the digestibility of the lucerne component. Frosting had a relatively small effect on the nutritive value of wheat grain for sheep. Dry matter digestibility for UF, LF and SF wheats did not differ significantly (0.886, 0.854 and 0.839, respectively), although the SF wheat had a lower digestibility than the UF wheat at P<0.10. The organic matter digestibility, digestible organic matter in the dry matter and estimated metabolisable energy (ME) content were all significantly (P<0.05) lower for SF compared with UF wheat grain (0.856 v. 0.908, 0.859 v. 0.915 and 13.5 v. 14.3 MJ/kg DM respectively). This study demonstrated that wheat from the severely frosted wheat crop had a lower estimated ME content of about 1 MJ/kg DM (equivalent to about 6% less ME) than wheat from the unfrosted crop fed in this study. However, the resultant ME of all samples fed fell within the normal observed ME range for wheat.

2001 ◽  
Vol 2001 ◽  
pp. 93-93 ◽  
Author(s):  
T.W.J. Keady ◽  
C.S. Mayne ◽  
D J Kilpatrick

Grass silage forms the basal forage for the majority of dairy and beef cattle during the winter indoor feeding period. However its feeding value, as determined by intake potential and digestibility can differ dramatically at farm level as indicated by the Hillsborough Feeding Information System (HFIS). For example, for 7000 silages which were offered to dairy and beef cattle during the 1999/2000 indoor feeding period in Ireland and analysed through the HFIS, dry matter digestibility (DMD) varied from 540 to 830 g/kg DM (Keady, 2000). Many models used to predict feed intake by dairy cattle include a digestibility component (Keady and Mayne, 2000). However some models use DMD whereas others use digestible organic matter digestibility (DOMD). Furthermore commercial laboratories in Ireland measure silage digestibility as DMD while in the UK it is measured as DOMD. To facilitate the use of different models to predict food intake by dairy cattle, often it is necessary to be able to predict DMD from DOMD or vice versa. The present study was undertaken to develop a relationship between DMD and DOMD to facilitate the use of different models for the prediction of food intake when digestibility is available only either as DMD or as DOMD.


1971 ◽  
Vol 11 (53) ◽  
pp. 610 ◽  
Author(s):  
MC Nottle

In pen feeding trials with eight Merino wethers, digestion coefficients were estimated for rations of cereal chaff-wheat grain-oat grain mixture, and wheat grain and oat grain fed separately at two levels of intake. Digestion coefficients for wheat and oat grain fed at 675 g/day in a double crossover experiment were dry matter 89.4, 80.8 per cent, organic matter 90.1, 82.6 per cent, protein 82.3, 77.6 per cent, ether extract 84.1, 90.9 per cent, crude fibre 33.2, 59.9 per cent, nitrogen free extractives 93.2, 85.8 per cent, energy 88.1, 81.0 per cent, total digestible nutrients 91.6, 87.1 per cent, and starch equivalents 90.7, 85.7. When these grains were fed at 785 g/day there was about 10 per cent improvement in crude fibre digestibility for both grains and 1-2 per cent improvement for other estimations with oats but not with wheat. The gross energy content of the wheat and oat grains when fed at 675 g/day was 4407 and 4700 calories/g dry matter. The digestible energy of the wheat in calories/g dry matter and organic matter was 3869 � 30, 3933 � 30 and for oats 3791 � 59, 3910 � 61. When fed at 785 g/day these values for wheat were 3850 � 50,3911 � 51 and for oats 3796 � 34, 3913 � 51. A highly significant relationship was found between energy and dry matter digestibility which for wheat diets was Y = 1.074x 7.840. r = 0.993 (P<0.001), and for oats and the mixed diet of cereal chaff-oat grain-wheat grain, Y = 0.983x + 1.550. r = 0.996 (P<0.001) where Y = energy and X = dry matter digestibility and r = the coefficient of correlation. Because of the similar digestible energy content of, and the body weight gains of sheep on, these two grains it was concluded that under the present conditions these grains were equivalent weight for weight.


1980 ◽  
Vol 20 (107) ◽  
pp. 674 ◽  
Author(s):  
D Hamilton ◽  
JJL Maden

Steers of 252 kg initial mean liveweight were fed 0.44 kg of hay dry matter (DM)/head day-1 plus five rates of whole oats, crushed wheat or whole wheat, with the crushed wheat rations providing 0.7 to 1.3 times the estimated energy for maintenance. All-grain rations at these energy levels had been attempted, but resulted in digestive upset, and were abandoned. The results obtained, listed in the order of the above grains, were : 1 ) grain in ration to maintain liveweight: 1.31, 1.41 and 1.85 kg DMIhead day-1 ; 2) additional grain for each 10 kg improvement in liveweight over I2 weeks: 434,466 and 61 3 g DMIhead day-1 ; 3) mean digestible organic matter content (DOM) of rations, tested at the highest and lowest rates of grain : 69.4, 84.5 and 68.3%. The DOM of the oat rations declined by 8.1 units from the lowest to highest rate of grain. The relative liveweight change on oats could not be explained by the DOMs. Nevertheless, the results suggest, for similar conditions to those applying in our experiment, that: 1) whole oats may be at least as good a feed as crushed wheat, and both will be much better than whole wheat; 2) the feed requirement for maintenance may be about 20% less than standard recommendations; 3) even a little hay in the ration, compared with grain only, may greatly reduce the likelihood of digestive upset


Agronomy ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 273 ◽  
Author(s):  
Donato Andueza ◽  
Fabienne Picard ◽  
Philippe Pradel ◽  
Katerina Theodoridou

In mountain areas, hays are the main forage in winter diets for livestock. Barn-dried hays can be an alternative to traditional hays, which are generally characterized by a low feed value. The aim of this study was to compare the feed value of barn-dried hays with that of the fresh forage from a permanent meadow. The study was carried out over three periods during the first growth cycle of the meadow’s vegetation (from 30 May to 3 June, from 13 to 17 June, and from 27 June to 1 July). Fresh forage and barn-dried hays of the same fresh forages were tested for dry matter digestibility (DMD), organic matter digestibility (OMD), and voluntary intake (VI). Both types of forage obtained each period were tested with an interval of 15 days. Chemical composition and OMD of forages did not change (p > 0.05) according to the feeding method. However, the DMD values for barn-dried hays were higher (p < 0.05) than for fresh forages at the end of the cycle. VI and digestible organic matter intake of barn-dried hays were higher (p < 0.05) than that of fresh forages. In conclusion, barn-dried hays obtained from permanent grasslands presented a higher feed value than fresh forages.


1985 ◽  
Vol 25 (1) ◽  
pp. 32 ◽  
Author(s):  
RW Hodge ◽  
C Kat

There was no significant difference in digestible dry matter intake (6 14 v. 63 1 g/day), liveweight gain (1 33 v. 13 1 g/day) or nitrogen retention (9.6 v. 11.2 g N/kg digestible organic matter) of Merino lambs offered whole wheat or whole wheat supplemented with 1.5% urea. Supplementation of the wheat or wheat plus urea rations with 20% hay also had no significant effect on total dry matter intake or liveweight gain.


1983 ◽  
Vol 37 (1) ◽  
pp. 113-118 ◽  
Author(s):  
Susan G. Low ◽  
R. C. Kellaway

ABSTRACTWheat grain was given whole (W), cracked (C) or ammonia-treated (N) as the sole diet to six steers. In Expt 1, W, C and N were given at the rate of 2·1 kg per head per day. In Expt 2, W and N were given at the rate of 7·35 kg per head twice weekly; feeding of C had to be abandoned due to frequent bloat. Dry-matter digestibility was 0·79, 0·86 and 0·88 on W, C and N in Expt 1 and 0·75 and 0·83 on W and N in Expt 2.The digestibility of neutral detergent fibre was 0·37, 0·24 and 0·57 with diets W, C and N respectively in Expt 1 and 0·27 and 0·47 with diets W and N in Expt 2.The quantity of whole grain voided in faeces (g/kg grain fed) was 122, 3 and 31 with W, C and N in Expt 1 and 136 and 51 with W and N in Expt 2. Voided grains had a lower ratio of cr-glucose: neutral detergent fibre than grains fed, which indicated partial digestion of starch. Rates of nitrogen retention (g/day) were 6·6, 9·4 and 9·8 with W, C and N in Expt 1 and 7·2 and 12·2 with W and N in Expt 2.It was concluded that ammonia-treated whole wheat grain is utilized as efficiently as cracked wheat grain when given as a sole diet to cattle and results in fewer digestive disturbances than cracked wheat grain.


2017 ◽  
Vol 57 (9) ◽  
pp. 1893 ◽  
Author(s):  
Leandro Soares Martins ◽  
Mário Fonseca Paulino ◽  
Marcos Inácio Marcondes ◽  
Luciana Navajas Rennó ◽  
Daniel Mageste de Almeida ◽  
...  

The objective was to evaluate the effect of substituting soybean meal with cottonseed meal in supplements containing 15% and 30% of crude protein (CP), as well as evaluate the effect of supplementation use, on the performance and nutritional status of Nellore heifers. Forty heifers that were 13 months old and 250 ± 4 kg were kept in five 2.5-ha paddocks covered with Brachiaria decumbens. They were compared as they received different supplements (1 kg/head.day) in a 2 × 2 + 1 factorial – two protein sources (soybean and cottonseed meal) by two protein concentrations (15% and 30%) plus a Control treatment, which was a mineral mix only. The supplemented heifers showed greater weight gains, final bodyweight (P < 0.10) and higher intake of all evaluated nutrients (P < 0.10), as well as greater digestibility of these nutrients compared with those from the Control treatment. The animals fed supplements containing 15% CP had lower digestibility of dry matter, organic matter, CP and neutral detergent insoluble fibre corrected for ash and protein. These animals also had lower total digestible nutrients as compared with those which received a supplement containing 30% CP (P < 0.10). The treatments containing cottonseed meal provided greater dry matter digestibility (P < 0.10). Cottonseed meal can fully substitute soybean meal to grazing heifers during the rainy season. Supplements containing 30% of CP provided greater digestibility than 15% CP supplements. Supplemented animals had better performance.


1971 ◽  
Vol 11 (48) ◽  
pp. 18 ◽  
Author(s):  
DJ Minson

The digestibility and voluntary intake of P. coloratum CV. Kabulabula, P. coloratum var. Makarikariense CV. Burnett and C.P.I. 13372, P. maximum var. trichoglume CV. Petrie Green Panic, P. maximum cv. Coloniao guinea grass and Hamil were measured with sheep in metabolism pens. Each grass was cut eight to ten times at different growth stages and times of the year. Varieties differed (P<0.01) in their dry matter and organic matter digestibility but the maximum mean difference between varieties was only 2.8 and 3.4 per cent respectively. There were large differences in voluntary intake between grasses. P. maximum cv. Hamil had a voluntary intake 50 and 27 per cent greater than P. coloratum cv. Kabulabula when both had p dry matter digestibility of 50 and 60 per cent respectively. Voluntary intake of digestible organic matter of P. maximum CV. Hamil was 26 per cent higher than that of P. coloratum CV. Kabulabula. The higher intake of P. maximm occurred despite its having higher silicon percentages than P. coloratum. It was concluded that because of the biased relation between intake and digestibility selection of grasses on the basis of digestibility determinations alone could be a misleading guide to their nutritional value.


2001 ◽  
Vol 41 (8) ◽  
pp. 1143 ◽  
Author(s):  
P. K. Migwi ◽  
J. R. Gallagher ◽  
R. J. van Barneveld

In experiment 1, 4 treatments were prepared consisting of a mixture of chopped wheat straw in different proportions, a fixed proportion of poultry litter and 0, 15, 30 and 45% citrus pulp on a dry matter basis. The mixtures were ensiled for 60 days at room temperature in polythene bags. Ensiling (time effect) resulted in an increase (P<0.001) in titrable acidity level and a decrease in pH in the silage. In titrable acidity, there was an interaction effect (P<0.001) between the levels of citrus pulp and the ensiling time, such that there was an increase (P<0.001) in titrable acidity and a decrease (P<0.001) in pH in the 4 treatments both before and after fermentation. However, compared with the premix, there was a large increase in titrable acidity in silage following fermentation. Ensiling resulted in complete elimination of all coliforms in spite of their presence in large numbers in the mixtures before ensiling. Although the total nitrogen content was not affected, ensiling resulted in an increase (P<0.05) in the proportion of soluble nitrogen. The potential degradability of the silage dry matter ranged from 487 to 582 g/kg and increased (P<0.05) with the level of citrus pulp. In experiment 2, the daily intake of dry matter, organic matter, digestible organic matter and the digestibility of organic matter increased significantly with levels of citrus pulp in the basal silage diet, but there was no difference (P>0.05) in dry matter intake between diets containing 0, 76 and 167 g/kg citrus pulp when the intake was expressed on the basis of metabolic body weight. However, there was a decrease (P<0.001) in intake of silage and diet dry matter, organic matter and digestible organic matter when the level of citrus pulp in the basal silage diet increased from 167 to 272 g/kg. Only animals on the basal silage diet containing 167 g/kg citrus pulp had a higher (P<0.05) and positive nitrogen balance of 1.0 g/day. It is concluded that wheat straw and poultry litter can be ensiled successfully with citrus pulp to produce silage that is safe and of high fermentation quality. This silage has a medium to high feeding value in sheep, provided that the level of citrus pulp in the diet is in the range of 150–200 g/kg.


2016 ◽  
Vol 7 (2) ◽  
pp. 52
Author(s):  
Wara Pratitis Sabar Suprayogi ◽  
Susi Widyawati ◽  
R. Hidayah

<p><em>The research aimed to know the effect of rice bran steaming and MHA supplementation on the increasing of nutrient digestibility of local male sheep. This research used 12 local male sheeps with average of body weight 10.32 ± 1.02 kg. Treatment of rations were for P0 (60 % king grass + 40 % bran), P1 (60 % king grass +40 % steamed bran), P2 (60 % king grass + 40 % steamed bran + 1 g MHA). Design used in research was  Completely Randomized Design (CRD) in one-way pattern using 3 treatments. Each treatment consisted of 4 replications. Parameters observed were dry matter intake, organic matter intake, dry matter nutritive value index and organic matter nutritive value index.</em><em> The result of treatment P0, P1, and P2 for dry matter intake were 960.024; 909.426; and 926.399 g/head/day respectively, organic matter intake were 825.036; 772.665; and 796.225 g/head/day, organic matter digestibility in percent were 72.424; 73.050; and 73.068, organic matter digestibility in percent were 75.989; 76.306; and 76.239, dry matter nutritive value index were 695.396; 664.392; and 677.654 g/head/day and organic matter nutritive value index were 626.894; 589.985; and 607.649 g/head/day.</em><em> The variance Analysis showed that the usage of steamed rice bran and adding of MHA given non significantly effect (P&gt;0.5) on dry matter intake, organic matter intake, dry matter digestibility, organic matter digestibility, dry matter nutritive value index, and organic matter nutritive value index.</em><em> It can be concluded that the treatments did not affect variables that were measured.</em></p><p><em> </em></p><p><em>Keyword : </em><em>local male sheep, steamed bran, MHA, digestibility</em><em></em></p>


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