scholarly journals Performance and serum chemistry profile of lambs fed on rations with increasing levels of urea

2017 ◽  
Vol 38 (2) ◽  
pp. 919
Author(s):  
Diana Rosana Vivian ◽  
Américo Fróes Garcez Neto ◽  
José Antônio Freitas ◽  
Sergio Rodrigo Fernandes ◽  
Sandra Rozanski
Keyword(s):  
Feed Intake ◽  
Crude Protein ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Blood Parameters ◽  
Serum Glucose ◽  
Animal Performance ◽  
Feed Conversion ◽  
Mean Values ◽  
Randomized Design

Feed intake and efficiency, animal performance, and protein and energy metabolism were studied in lambs that were fed on increasing levels of urea (0.0, 0.5, 1.0, and 1.5% of dry matter [DM]). A completely randomized design was used, with four treatments (urea levels) and six replicates. The lambs were fed ad libitum for 56 days until they reached an average body weight of 35 kg. The rations were composed of 34% Tifton 85 hay (Cynodon spp.) and 66% concentrate. Crude protein (CP) constituted 17% of the diet on a dry matter basis, and total digestible nutrients (TDN) accounted for 65%, on average. The dry matter intake (DMI) and crude protein intake (CPI) were not influenced by the urea levels in the diet, presenting average values of 1.175 and 0.206 kg animal-1 day-1, respectively. The average daily gain (ADG), feed conversion ratio (FCR) and gross feed efficiency (GFE) were also not influenced by urea levels (0.225 kg day-1, 5.33 kg DM kg gain-1 and 0.195 kg gain kg DM-1, respectively). Except for urea and glucose concentrations, blood parameters did not change with increasing urea in the diets. The mean values for total protein, albumin, globulin and creatinine in the serum were 7.11 g dL-1, 3.36 g dL-1, 3.75 g dL-1 and 0.91 mg dL-1, respectively. Serum urea decreased linearly and serum glucose increased linearly with urea levels in the diet. The addition of 1.5% of urea to the diets did not change feed intake and efficiency or animal performance, and did not cause metabolic disorders in feedlot lambs in the finishing phase.

The effects of zeranol and oestradiol implants on performance and nutrient digestibility of zero-grazed White Fulani cattle

2020 ◽  
Vol 60 (8) ◽  
pp. 1081
Author(s):  
O. T. Soyelu ◽  
A. O. Aderibigbe
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Feedlot Cattle ◽  
Nutrient Digestibility ◽  
Apparent Digestibility ◽  
Feed Conversion ◽  
Mean Values ◽  
Significant Difference ◽  
White Fulani

Aim The aim of this study was to investigate the effects of two growth-promoting implants (zeranol and oestradiol-17β) on performance and feed digestibility of finishing White Fulani cattle in the feedlot. This was with a view to determining an alternative means of enhancing cattle performance without grazing the animals. Methods A 60-day feedlot trial was conducted using 27 stocker White Fulani bulls that were allotted randomly to three treatment groups (i.e. non-implanted, oestradiol-implanted and zeranol-implanted) in a completely randomised experimental design. Cattle were offered a compounded feedlot ration consisting of 14% crude protein ad libitum. The bulls were weighed initially and fortnightly thereafter for the duration of the study. Coefficients of dry matter and nutrients digestibility were determined using lignin as an internal marker. Data were analysed using the general linear model procedure of ANOVA and mean values were compared using Fisher’s least significant difference (l.s.d.0.05). Key results The average final liveweight, total weight gain, average daily gain (ADG) and average daily feed intake (ADFI) of implanted feedlot cattle were higher (P < 0.05) than for non-implanted cattle; and higher in oestradiol-implanted cattle compared with zeranol-implanted ones. The ADG was 29.16 and 20.48% higher, and the ADFI was 35.06 and 18.18% higher for oestradiol-implanted and zeranol-implanted feedlot cattle, respectively than for non-implanted cattle. Irrespective of the treatment, feed conversion ratio of experimental bulls remained below the range (4.5–7.5) established for feedlot beef cattle; an indication of better efficiency of feed utilisation by White Fulani cattle. The apparent digestibility of dry matter (59.76–64.31%) of the feedlot ration was in the order: non-implanted = oestradiol-implanted > zeranol-implanted while the apparent digestibility of crude protein (73.91–77.99%) was in the order: non-implanted > oestradiol-implanted = zeranol-implanted. Conclusions and implications The results of this study show that the use of an oestradiol implant in finishing zero-grazed White Fulani cattle was beneficial for improving growth performance. Both implanted and non-implanted cattle showed good coefficients of nutrient digestibility, indicating that the mode of action of the growth implants in enhancing performance characteristics does not depend on indices of digestibility.

scholarly journals Penampilan Produksi Sapi PO dan PFH Jantan yang Mendapat Pakan Konsentrat dan ”Hay” Rumput Gajah

2010 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
R Adiwinarti ◽  
I P Kusuma ◽  
C M Sri Lestari
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Protein Intake ◽  
Crude Protein ◽  
Dry Matter ◽  
Average Daily Gain ◽  
The Body ◽  
Napier Grass ◽  
Feed Conversion ◽  
Grass Hay

This research has been done during August 2004 - January 2005 at Laboratorium Ilmu Ternak Potong dan Kerja, Fakultas Peternakan Universitas Diponegoro Semarang. The study was set up to investigate the performance of ongole crossbred and Friesian Holstein crossbred young bulls fed concentrate and Napier grass hay. This research used 4 yearling ongole crossbred (PO) bulls with the initial body weight: 228,17 + 14,77 kg (CV = 6,47%) and 4 yearling friesian holstein crossbred (PFH) bulls with the body weight: 196,34 + 7,64 kg (CV = 3,89%). The Independent Sample Comparisons was used in this study. Those bulls were fed 30% hay of Napier grass and 70% concentrate made of “bungkil kelapa sawit” (80%) and rice bran (20%). The ration was given based on dry matter need, 2.5% of the body weight. Parameters observed were the average daily gain (ADG), feed intake (dry matter intake, crude protein intake, Total Digestible Nutrients’ 2 Sains Peternakan Vol.8 (1), Maret 2010 intake) and feed conversion. Data were analyzed using t-test; except for feed conversion was analyzed deskriptifely.The result indicated that those cattle fed concentrate and Napier grass had ADG and feed intake relatively similar. The average of ADG PO bulls were 0.21 kg and PFH bulls were 0.22 kg. Dry matter intakes of PO and PFH bulls were 3.33 kg/day and 2.83 kg/day. Crude protein intake of PO bulls were 0,45 kg/day and that of PFH bulls were 0,38 kg/day, whereas TDN intake of PO bulls were 1,93 kg/day and PFH bulls were 1,20 kg/day. Feed conversion of PO bulls was 15.86 and that of PFH bulls was 12.86. It can be concluded that the performance of Ongole crossbred and Friesian Holstein crossbred young bulls fed concentrate and Napier grass hay was similar. Those indicated that PFH bulls had productivity that was the same as PO bulls. Key words : Bulls, performance, feed intake, feed conversion

Penampilan Produksi Sapi PO dan PFH Jantan yang Mendapat Pakan Konsentrat dan ”Hay” Rumput Gajah

2010 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
R Adiwinarti ◽  
I P Kusuma ◽  
C M Sri Lestari
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Protein Intake ◽  
Crude Protein ◽  
Dry Matter ◽  
Average Daily Gain ◽  
The Body ◽  
Napier Grass ◽  
Feed Conversion ◽  
Grass Hay

This research has been done during August 2004 - January 2005 at Laboratorium Ilmu Ternak Potong dan Kerja, Fakultas Peternakan Universitas Diponegoro Semarang. The study was set up to investigate the performance of ongole crossbred and Friesian Holstein crossbred young bulls fed concentrate and Napier grass hay. This research used 4 yearling ongole crossbred (PO) bulls with the initial body weight: 228,17 + 14,77 kg (CV = 6,47%) and 4 yearling friesian holstein crossbred (PFH) bulls with the body weight: 196,34 + 7,64 kg (CV = 3,89%). The Independent Sample Comparisons was used in this study. Those bulls were fed 30% hay of Napier grass and 70% concentrate made of “bungkil kelapa sawit” (80%) and rice bran (20%). The ration was given based on dry matter need, 2.5% of the body weight. Parameters observed were the average daily gain (ADG), feed intake (dry matter intake, crude protein intake, Total Digestible Nutrients’ 2 Sains Peternakan Vol.8 (1), Maret 2010 intake) and feed conversion. Data were analyzed using t-test; except for feed conversion was analyzed deskriptifely.The result indicated that those cattle fed concentrate and Napier grass had ADG and feed intake relatively similar. The average of ADG PO bulls were 0.21 kg and PFH bulls were 0.22 kg. Dry matter intakes of PO and PFH bulls were 3.33 kg/day and 2.83 kg/day. Crude protein intake of PO bulls were 0,45 kg/day and that of PFH bulls were 0,38 kg/day, whereas TDN intake of PO bulls were 1,93 kg/day and PFH bulls were 1,20 kg/day. Feed conversion of PO bulls was 15.86 and that of PFH bulls was 12.86. It can be concluded that the performance of Ongole crossbred and Friesian Holstein crossbred young bulls fed concentrate and Napier grass hay was similar. Those indicated that PFH bulls had productivity that was the same as PO bulls. Key words : Bulls, performance, feed intake, feed conversion

Daily methane emissions and emission intensity of grazing beef cattle genetically divergent for residual feed intake

2017 ◽  
Vol 57 (4) ◽  
pp. 627 ◽  
Author(s):  
J. I. Velazco ◽  
R. M. Herd ◽  
D. J. Cottle ◽  
R. S. Hegarty
Keyword(s):  
Feed Intake ◽  
Emission Intensity ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Residual Feed Intake ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Breeding Value ◽  
Dry Matter Intake ◽  
Feed Conversion

As daily methane production (DMP; g CH4/day) is strongly correlated with dry matter intake (DMI), the breeding of cattle that require less feed to achieve a desired rate of average daily gain (ADG) by selection for a low residual feed intake (RFI) can be expected to reduce DMP and also emission intensity (EI; g CH4/kg ADG). An experiment was conducted to compare DMP and EI of Angus cattle genetically divergent for RFI and 400-day weight (400dWT). In a 6-week grazing study, 64 yearling-age cattle (30 steers, 34 heifers) were grazed on temperate pastures, with heifers and steers grazing separate paddocks. Liveweight (LW) was monitored weekly and DMP of individual cattle was measured by a GreenFeed emission monitoring unit in each paddock. Thirty-nine of the possible 64 animals had emission data recorded for 15 or more days, and only data for these animals were analysed. For these cattle, regression against their mid-parent estimated breeding value (EBV) for post-weaning RFI (RFI-EBV) showed that a lower RFI-EBV was associated with higher LW at the start of experiment. Predicted dry matter intake (pDMI), predicted DMP (pDMP) and measured DMP (mDMP) were all negatively correlated with RFI-EBV (P < 0.05), whereas ADG, EI, predicted CH4 yield (pMY; g CH4/kg DMI) were not correlated with RFI-EBV (P > 0.1). Daily CH4 production was positively correlated with animal LW and ADG (P < 0.05). The associations between ADG and its dependent traits EI and pMY and predicted feed conversion ratio (kg pDMI/kg ADG) were strongly negative (r = –0.82, –0.57 and –0.85, P < 0.001) implying that faster daily growth by cattle was accompanied by lower EI, MY and feed conversion ratio. These results show that cattle genetically divergent for RFI do not necessarily differ in ADG, EI or pMY on pasture and that, if heavier, cattle with lower RFI-EBV can actually have higher DMP while grazing moderate quality pastures.

scholarly journals Crude protein requirements in feeding for hybrid jundiara (Pseudoplatystoma fasciatum x Leiarius marmoratus)

2020 ◽  
Vol 9 (8) ◽  
pp. e978986866
Author(s):  
Rafael Pereira Barros ◽  
Joaldo Rocha Luz ◽  
Ana Paula de Souza Ramos ◽  
Deise Silva Costa ◽  
Luís Gustavo Tavares Braga
Keyword(s):  
Chemical Composition ◽  
Feed Intake ◽  
Crude Protein ◽  
Blood Parameters ◽  
Experimental Unit ◽  
Feed Conversion ◽  
Linear Effect ◽  
Protein Requirements ◽  
Protein Levels ◽  
Total Plasma Protein

The objective of this study was to determine the crude protein requirements for juvenile jundiara fish, a hybrid of Pseudoplatystoma fasciatum X Leiarius marmoratus. A total of 240 juveniles of the hybrid, with an initial mean weight of 8.4 ± 1.41 g, were distributed in 15 fiberglass tanks (170 L) in a closed water recirculation and constant aeration system, with a density of 16 fish/tank. The experimental design was completely randomized with five treatments and three replications. The treatments consisted of diets with 32, 34, 36, 38 and 40% crude protein. Seventy days into the experiment the final fish weight and feed intake were measured. Two specimens from each experimental unit were collected for evaluation of carcass chemical composition, nutritional efficiency and blood parameters. The increase in crude protein content promoted the significant, increasing linear effect for mean weight gain, mean feed intake and specific growth rate, and decreasing effect for feed conversion. Significant differences were also observed in carcass chemical composition, nutritional efficiency, total plasma protein, glucose, cholesterol, triglycerides and lipase enzymatic activity. Thus, the increase in crude protein levels of up to 40% in jundiara diets promotes improvement in the productive performance of juvenile jundiara.

scholarly journals GROWTH PERFORMANCE OF MEAT MALE QUAILS (COTURNIX SP.) OF TWO LINES UNDER TWO NUTRITIONAL ENVIRONMENTS

2002 ◽  
Vol 7 (2) ◽  
Author(s):  
M. I. M. ALMEIDA ◽  
E. G. OLIVEIRA ◽  
P. R. RAMOS ◽  
N. VEIGA ◽  
K. DIAS
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Feed Intake ◽  
Crude Protein ◽  
Feed Utilization ◽  
Meat Production ◽  
Feed Conversion ◽  
Randomized Design ◽  
Crude Protein Level ◽  
Better Than

Com o objetivo de avaliar o efeito de duas linhagens (italiana e japonesa) e de dois níveis de proteína bruta (20 e 26% PB) sobre o desempenho para corte foram utilizados 144 machos de codorna, criados em gaiola de 1 a 49 dias. Foram alojadas nove aves por gaiola, sorteadas de acordo com um esquema fatorial 2 x 2 em delineamento inteiramente aleatorizado com quatro repetições. O desempenho foi avaliado semanalmente. A linhagem italiana apresentou maiores peso médio, ganho de peso médio e consumo médio do que a japonesa. O consumo médio relativo e a conversão alimentar da linhagem italiana foram menores, indicando melhor capacidade de utilização do alimento. Abstract Male quails (144) were reared from 1 to 49 days in cages, to evaluate the effect of line (Italian and Japanese), and crude protein level (20 and 26% CP) upon growth performance for meat production. Nine birds were housed per cage, sorted out according to a 2 x 2 factorial scheme in an entirely randomized design with 4 repetitions. Growth performance was evaluated weekly. The Italian line had higher mean body weight, mean gain weight and mean feed intake than the Japanese line. The Italian line showed lower or equal means of feed intake adjusted for body weight, indicating that it had better feed utilization. Mean feed conversion of the italian line was better than that of the Japanese line.

scholarly journals PENGARUH PROTEKSI CPO DENGAN FORMALDEHID TERHADAP KECERNAAN DAN PERFORMA DOMBA EKOR TIPIS

2015 ◽  
Vol 39 (2) ◽  
pp. 78 ◽  
Author(s):  
Nafly Comilo Tiven ◽  
Lies Mira Yusiati ◽  
Rusman (Rusman) ◽  
Umar Santoso
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Feed Conversion ◽  
Randomized Design ◽  
And Performance ◽  
Feed Conversion Rate ◽  
Daily Gain ◽  
Range Test ◽  
Basal Ration

<p>The experiment was conducted to determine the effect of CPO protected with formaldehyde on digestibility and performance of thin tail sheeps. Fifteen local male lambs aged 9-12 months, were divided into 3 groups of ration treatment. The first group received only the basal ration (R0), the second group received the basal ration and 3% CPO (R1), while the third group received the basal ration and 3% CPO protected with 2% formaldehyde (R2). The data were analyzed by Completely Randomized Design with oneway pattern. The different of treatments were tested by Duncan’s New Multiple Range Test. The results showed that addition CPO protected with formaldehid (R2) in the sheeps diet did not affect dry matter and organic matter intake, dry matter and organic matter digestibility, average daily gain (ADG), but significantly (P&lt;0.01) increase feed conversion rate. It can be concluded that CPO protected with formaldehyde gives more advantage on feed conversion aspect.</p><p>(Key words: Thin tail sheeps, Crude palm oil (CPO) protected with formaldehyde, Digestibility, Performance)</p>

scholarly journals Influence of timing and duration of feed restriction on growth and economic performance of finisher broiler chickens

2012 ◽  
Vol 12 (55) ◽  
pp. 6976-6986
Author(s):  
OA Makinde ◽  
Keyword(s):  
Feed Intake ◽  
Crude Protein ◽  
Average Daily Gain ◽  
Live Weight ◽  
Feed Restriction ◽  
Meat Production ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Ad Libitum ◽  
Cost Of Production

The study investigated different feed restriction programs during an 8-week broiler chicken growing cycle as a management strategy for reducing cost of production. Initially, 90 Hubbard day-old chicks fed ad libitum a commercial starter feed supplying 24% crude protein and 3000 kcal of ME/kg for 4 weeks. Thereafter, they were randomly allotted to five different feed restriction programs (R0, R5, R56, R67 and R57) utilizing finisher diets supplying 19% crude protein and 2850 kcal of ME/kg from 5-8 weeks. Each program had three replicates and six birds per replicate. Unrestricted (R0) was the control where birds fed ad libitum. In R5, birds were restricted the 5th week; R56, 5th and 6th weeks; R67, 6th and 7th weeks, and R57, 5th and 7th weeks. However, all the feed-restricted birds fed ad libitum in the 8th week. Feed restriction involved feeding one-third feed intake of R0 birds starting from 14.00 to 18.00 h daily and performance parameters recorded. Feed restriction negatively affected growth performance as the severity of restriction increased. Final body weight, carcass weight, average daily gain and average daily feed intake were similar (P>0.05) for R0 and R5 but higher than R56, R67 and R57. However, feed restriction did not significantly affect (P>0.05) carcass and breast yields or feed conversion ratio except for R67, the least (P<0.05) feed efficient. Feed cost, cost of production and revenue declined as the period of restriction increased. However, profit or profit/kg live weight, economic efficiency (EE) of feed and relative EE of feed were highest for R0 followed by R5, R56, R57 and R67 in that order. Generally, birds restricted for 1 week performed better than those restricted for 2 weeks and birds restricted continuously for 2 weeks before the last week of re-alimentation and slaughter were inferior to others. These results suggest that the duration and timing of feed restriction can reduce cost in broiler meat production without seriously affecting performance or economics of production depending on the restriction program applied.

The crude protein requirement of the early-weaned calf given urea, meat meal or soya bean meal with and without sulphur supplementation

1973 ◽  
Vol 17 (3) ◽  
pp. 257-265 ◽  
Author(s):  
Jane Leibholz ◽  
H. S. Kang
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Crude Protein ◽  
Dry Matter ◽  
Soya Bean ◽  
Feed Conversion ◽  
Protein Requirement ◽  
Meat Meal ◽  
Bean Meal ◽  
Soya Bean Meal

SUMMARYTwo experiments were conducted with 84 male British Friesian calves to estimate their nitrogen and sulphur requirements between 5 and 11 weeks of age. A basal 12 % crude protein (CP) diet was supplemented with meat meal, soya bean meal or urea to 15 or 18 % CP, and with sulphur to reduce the nitrogen to sulphur ratios of the diets to about 10 to 1.The weight gains and feed conversion ratios of the calves given the 12% CP diets were significantly poorer than those of the calves fed on the diets containing 15 or 18% CP, irrespective of the CP supplement used. The supplementation of the urea-containing diets with sulphur caused a significant increase in feed intake and weight gain.The digestibility of nitrogen and dry matter increased with increasing CP content of the diets and was greater for the diets supplemented with urea than for those supplemented with meat meal or soya bean meal. Sulphur additions also increased the nitrogen digestibility. The retention of nitrogen, when corrected for feed intake, was greater in the calves fed on the diets containing 18% CP than in those fed on the 15% and 12% CP diets.The supplementation of the diets with sulphur increased the digestibility of sulphur, its excretion in urine and its retention. The concentration of urea in the blood plasma increased with increasing dietary CP content, and was higher in calves given urea.

scholarly journals Effect of substituting maize grain with cobs treated with a combination of urea and wood ash on sheep performance and rumen parameters

2021 ◽  
Vol 48 (5) ◽  
pp. 343-352
Author(s):  
A. Abdulazeez ◽  
C. M. Tsopito ◽  
O. R. Madibela
Keyword(s):  
Organic Matter ◽  
Crude Protein ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Wood Ash ◽  
Gas Production ◽  
Feed Conversion ◽  
Maize Grain ◽  
Maize Cobs

Effect of treating maize cobs with a combination of urea and wood ash (WA) on chemical composition, in vitro gas production, and in sacco degradability were examined in a previous study. The treatments were: (100U) =100% urea +0% wood ash, (75U25WA) = 75% urea +25% wood ash, (50U50WA) = 50% urea +50% wood ash, (25U75WA) =25 % urea + 75% wood ash and (0U0WA) = Untreated maize cobs. It was concluded in the study that, treatment 25U75WA gave better results in terms of all the parameters measured. This study aimed at determining the effect of feeding Twana sheep diets whose grain was substituted with maize cobs treated with 25%U and 75%WA on nutrient intake, digestibility, nitrogen utilization, rumen NH3, pH and performance. Tswana sheep were fed experimental diet whose maize grain was substituted with graded levels of 25U75WA in the dietary ingredients and the treatments were: 100M = 100% maize grain, 66M34C = 66% maize grain plus 34% treated maize cobs, 34M66C = 34% maize grain plus 66% treated maize cobs and 100C = 100% treated maize cobs in a 4×4 Latin Square Design (4 animals were rotated in 4 periods for all the treatments). Treatment 34M66C had crude protein intake (CPI), dry matter intake (DMI), organic matter intake (OMI) and neutral detergent fibre intake (NDFI) of 0.1334, 0.9500, 0.8921 and 0.4800 kg/d respectively (P<0.05) while the crude protein digestibility (CPD), dry matter digestibility (DMD), organic matter digestibility (OMD) and neutral detergentfibre digestibility (NDFD) were 79.57, 68.02, 66.26, and 57.8% respectively (P<0.05). All the treatments had similar (P>0.05) rumen NH3 ranging from 23.55 – 24.00 mg/ml while rumen pH were different (P<0.05) and ranged from 6.117 – 6.937 however treatment 100M had lower pH. Treatment 100M and 34M66C had average daily gain (ADG) of 0.1150 and 0.1417 kg/d, respectively (P<0.05), however, treatment 100M had lower feed conversion ratio (FCR) of 5.217 compared to 7.059 (P<0.05) for 34M66C. It was concluded that farmers should include 34M66C in the diet of Tswana sheep for optimum performance and also reduce the cost of feed.     Effet du traitement des épis de maïs avec une combinaison d'urée et de cendres de bois (CB) sur la composition chimique, la production de gaz in vitro et dans la dégradabilité de SACCO ont été examinées dans une étude précédente. Les traitements étaient: (100u) = 100% urée + 0% de cendre de bois, (75U25CB) = 75% d'urée + 25% de cendres de bois, (50u50wa) = 50% d'urée + 50% de cendre de bois, (25U75CB) = 25% d'urée + 75% de cendres bois et (0U0CB) = épis de maïs non traité. Il a été conclu dans l'étude que, le traitement 25U75CB a donné de meilleurs résultats en termes de tous les paramètres mesurés. Cette étude visait à déterminer l'effet de l'alimentation des régimes de moutons Twana dont le grain a été substitué aux épis de maïs traité avec 25% U et 75% de CB sur l'apport nutritionnel, la digestibilité, l'utilisation de l'azote, le rumen NH3, la performance de la pharmacie. Les moutons de Tswana ont été nourris à une alimentation expérimentale dont le grain de maïs était substitué par des niveaux de grade de 25U75WA dans les ingrédients alimentaires et les traitements étaient les suivants: 100m = 100% de grain de maïs, 66 m34c = 66% de grain de maïs de maïs plus 34% d'épis de maïs traité, 34m66c = 34% de maïs Grain Plus 66% COBS de maïs traité et 100c = 100% cobs de maïs traités dans un design carré latin 4 × 4 (4 animaux ont été tournés en 4 périodes pour tous les traitements). Traitement 34M66C avait une consommation de protéines brutes (CPB), une consommation de matière sèche (CMS), une consommation de matière organique (CMO) et une consommation de fibres de détergents neutres de 0,1334, 0,9500, 0,8921 et 0,4800 kg / j respectivement (p <0,05) tandis que le Digestibilité des protéines brutes (DPB), digestibilité de la matière sèche (DMS), digestibilité de la matière organique (DMO) et digestibilité de fibres de détergent neutres (DFDN) étaient de 79,57, 68,02, 66,26 et 57,8% respectivement (p <0,05). Tous les traitements avaient des analgésiques similaires (p> 0,05) Rumen NH3 allant de 23,55 à 24,00 mg / ml tandis que le pH de rumen était différent (p <0,05) et allait de 6,117 - 6,937Cependant, le traitement 100M avait un pH inférieur. Traitement 100m et 34m66C avaient un gain quotidien moyen (GQM) de 0,1150 et 0,1417 kg / j, respectivement (p <0,05), cependant, le traitement 100M avait un rapport de conversion d'alimentation inférieur (CAI) de 5,217 par rapport à 7,059 (p <0,05) pour 34 m66c. Il a été conclu que les agriculteurs comprennent 34 m66c dans le régime alimentaire des moutons de Tswana pour des performances optimales et réduisent également le coût des aliments pour animaux.

Sign in / Sign up

Export Citation Format

Share Document