scholarly journals The Effect of Level of Crude Protein and Available Lysine on Finishing Pig Performance, Nitrogen Balance and Nutrient Digestibility

2013 ◽  
Vol 26 (4) ◽  
pp. 564-572 ◽  
Author(s):  
M. E. E. Ball ◽  
E. Magowan ◽  
K. J. McCracken ◽  
V. E. Beattie ◽  
R. Bradford ◽  
...  
Author(s):  
B. Vidya ◽  
Y. Raman Reddy ◽  
D. Srinivasa Rao ◽  
V. Ravinder Reddy ◽  
N. Nalini Kumari ◽  
...  

The present study was carried out to evaluate the effect of supplementation of concentrate at different levels to sweet sorghum bagasse leaf residue (SSBLR) silage on nutrient utilization in growing lambs in a metabolism trial conducted after 120days of feeding. Sixteen growing Nellore ram lambs (18.3±0.8) were randomly allotted to 4 dietary groups (4 in each group) and were inducted into metabolic cages five days prior to collection for acclimatization followed by a seven day collection period. The four dietary groups were SSBLR silage fed ad libitum and supplemented with concentrate mixture (CP 17% and ME 2.53 Mcal/kg DM) at 0.0 (R-I), 0.75 (R-II), 1.0 (R-III) and 1.25 (R-IV) per cent of their live Weight. Significantly (P<0.01) higher total DMI (g/kg w0.75) was noticed in concentrate supplemented groups. The organic matter, crude protein and nitrogen free extract digestibility was significantly (P<0.05) higher in lambs fed R-IV ration than those fed R-I ration. No significant difference in the digestibility of dry matter, ether extract and cell wall constituents was observed among the rations. The digestible crude protein (%) (P<0.01) and metabolizable energy (Mcal/kg) values increased (P>0.0) with increase in level of concentrate in the diet. Negative and lower (P<0.01) nitrogen balance (g/d) was noticed in R-I ration. The N balance linearly increased with increase in level of concentrate supplementation. The study indicated feeding of sole SSBLR silage couldn't meet the nutrient requirements and Supplementation of concentrate mixture (0.75-1.25%) to SSBLR silage improved the nutrient digestibility and nitrogen balance in growing lambs.


2010 ◽  
Vol 39 (10) ◽  
pp. 2281-2287
Author(s):  
Margareth Maria Teles Rêgo ◽  
José Neuman Miranda Neiva ◽  
Aníbal Coutinho do Rêgo ◽  
Magno José Duarte Cândido ◽  
Rossana Herculano Clementino ◽  
...  

The objective of the present study was to evaluate the nutritional value of elephant-grass silages containing annato byproduct. Twenty intact rams were distributed in a complete randomized block design with five diets (0; 4; 8; 12 and 16% annato byproduct in the silage) and four replications and used to estimate the intake, apparent nutrient digestibility, content of total digestible nutrients and nitrogen balance. The addition of annato byproduct raised the intakes of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), ether extract (EE), total carbohydrates (TC), non-fibrous carbohydrates (NFC) and total digestible nutrients (TDN), in body weight (%BW) and in metabolic weight (g kg-1BW0.75). The digestibilities of DM (55.95%), OM (58.19%), CP (45.34%), NDF (52.79%), ADF (45.79%), EE (34.96%) and NFC (99.86%) were not influenced by the addition of annato byproduct. The inclusion of annato byproduct in elephant-grass silage increased digestibility of total carbohydrates, the TDN content and the nitrogen balance. The aditions of annato byproduct at levels up to 16% of the elephant grass silage natural matter improves nutrient intake and nitrogen balance.


1971 ◽  
Vol 22 (1) ◽  
pp. 139 ◽  
Author(s):  
RH Weston ◽  
JP Hogan

Subterranean and berseem clovers, harvested at early and late stages of maturity, were dried and offered to sheep ad libitum, or at about 90 % of ad libitum intake. Feed consumption and the times spent in ruminating and eating were measured when the forages were offered ad libitum and several aspects of digestion were studied at the restricted level of feeding. The effects of maturity on (i) forage chemical composition, (ii) nutrient digestibility, (iii) parameters relating to the movement of digesta through the stomach, (iv) ruminal volatile fatty acid production, (v) the molar proportions of individual amino acids in abomasal digesta and peripheral blood plasma, (vi) nitrogen balance, and (vii) the time and energy expenditure in ruminating and eating, were generally the same with these clovers as has been observed previously with grasses. Substantial amounts of nutrients were derived from forages harvested in the immature state, the consumption of which provided about 1200 g organic matter per day. It was calculated that under conditions of ad libitum feeding about 500 g of volatile fatty acids was produced in the rumen and 160-230 g of crude protein was digested in the intestines per day. High mean values for nitrogen balance were obtained with immature subterranean clover but the variation between sheep was large. The levels of amino acids in blood plasma were also exceptionally high with this diet. The data obtained on the digestion of immature clover forages were compared with those obtained previously with immature grass forages. The patterns of digestion were generally very similar for both types of forages and any differences observed could usually be ascribed to the higher feed intake with the clovers. The forages had similar capacities to furnish volatile fatty acids in the rumen and digested crude protein in the intestines. The calculated energy expenditure in eating and ruminating, however, was slightly lower for the clovers. The data were interpreted to indicate that if immature clovers are superior to immature grasses in promoting animal production, the superiority cannot be attributed to an inherent capacity of clovers to provide the animal with a more favourable balance of nutrients.


2021 ◽  
Vol 44 (3) ◽  
pp. 332-341
Author(s):  
B. M. Munza ◽  
M. R. Hassan ◽  
R. J. Tanko ◽  
S. M. Otaru ◽  
D. J. U. Kalla ◽  
...  

During the dry season, forages are low in quantity and quality; hence lacks the essential nutrients that are prerequisite for growth in ruminants, suggesting a supplemental feeding. Thus, this study was conducted to investigate the dry matter intake, nutrient digestibility and nitrogen balance in growing Red Sokoto bucks fed Sorghum bicolor hay supplemented with concentrate. Eight growing Red Sokoto bucks with average body weight of 15±1.0 kg were randomly allotted to two dietary treatments containing S. bicolor hay/concentrate mixture (100:0 and 60:40). The bucks were individually fed at 3.5% body weight daily for a period of 21 days in a completely randomised design with four replicates per treatment. The parameters measured were dry matter intake, water intake, amount of faeces voided, volume of urine and costs of feeding. Total dry matter intake (424.64g/day) was significantly (p<0.05) higher in 60:40 dietary treatment than 100:0 treatment (353.57g/day). The digestibility coefficients of crude fibre (92.34 %), acid detergent fibre (71.46 %) and neutral detergent fibre (69.77 %) were significantly (p<0.05) higher in Red Sokoto bucks fed Sorghum bicolor hay:concentrate ratio of 100:0 compared to bucks fed 60:40 diet with crude fibre (87.25 %), acid detergent fibre (59.67 %) and neutral detergent fibre (60.08 %) digestibility coefficient values. However, crude protein (78.49 %) and ash (70.04 %) digestibility coefficients in bucks fed 60:40 diet were significantly (p<0.05) higher than those fed 100:0 diet with 38.14 % crude protein and 21.45 % ash digestibility coefficients. There was an increasing trend (p<0.05) in all parameters measured when concentrate was supplemented. The nitrogen retained (7.55 g/day), nitrogen retained as % intake (68.76 %) and nitrogen absorbed as % intake (78.46 %) were significantly (p<0.05) higher in Red Sokoto bucks fed 60:40 diets when compared with that of 100:0 diet which recorded 0.69 g/day nitrogen retained, 23.87 % nitrogen retained as % intake and 38.15 % as nitrogen absorbed as % intake, respectively. Total costs per kg of feed (N78.13K) and costs of feeding per buck (N696.72K) were significantly (p<0.05) higher for 60:40 diet than 100:0 diet with N45.83K total costs per kg feed and N340.29K costs of feeding per buck. It is therefore, concluded that concentrate supplementation on Sorghum bicolor hay enhances its utilisation by growing Red Sokoto bucks in terms of increased dry matter intake, nutrient digestibility and nitrogen retention in Northern Guinea Savannah of Nigeria.


2019 ◽  
Vol 19 (1) ◽  
pp. 159-172 ◽  
Author(s):  
Tércia Cesária Reis de Souza ◽  
Araceli Aguilera Barreyro ◽  
Sara Rubio Rubio ◽  
Yanier Machado González ◽  
Konisgmar Escobar García ◽  
...  

AbstractTwo experiments were conducted to test if dehydrated porcine plasma (DPP) and potato protein concentrate (PPC) could be used as an alternative to antibiotics in starter diets for piglets. Experiment one was conducted to test if DPP and PPC in an antibiotic-free diet affected pig performance, and faecal consistency. Eighty-four piglets weaned at 22 days and weighing 6.9 kg were used. Piglets were fed for two weeks with one of four diets: a positive control diet with antibiotics (C+); and three other diets without antibiotics added with DPP, PPC, or DPP and PPC (DPP+PPC) to measure the average daily feed intake (ADFI), average daily gain (ADG), feed efficiency (FE), and incidence and severity of diarrhoea (ID and ISD respectively). In experiment two, twenty-four piglets weaned at 17 days and weighing 5.7 kg, were implanted at 21 days of age with a T-cannula at the terminal ileum to measure the apparent ileal digestibility (AID) and the apparent total tract digestibility (ATTD) of nutrients. Piglets were fed one of four diets: a positive control diet with antibiotics (C+); a negative control diet without antibiotics (C–), and two diets without antibiotics added with DPP, or PPC. The results of experiment one showed that the DPP diet was the most consumed diet during the first week, and the ADG and FE were similar among treatments. During the second week and the total experimental period the ADFI, ADG, and FE were similar among diets. The ID was lower in the C+ diet than other diets. The ISD was lower in the C+ diet than DPP and DPP+PPC diets; piglets fed PPC diet were similar to piglets fed C+ and DPP and DPP+PPC diets. The results of digestibility showed that crude protein AID was higher in piglets fed C+ and PPC diets than C– and DPP diets. Dry matter ATTD and energy ATTD were higher for piglets fed PPC than other diets. Further, crude protein ATTD of DPP and PPC diets tended to have a similar digestibility to that of C+ diet. The results suggest that PPC is a potential controller of post-weaning diarrhoea.


Author(s):  
А.В. Косолапов

Изложены результаты изучения переваримости питательных веществ и баланса азота у высокопродуктивных коров при введении в рацион полисахаридов. Коровы 1-й (контрольной) группы в составе основного рациона получали свекловичную патоку, коровы 2-й и 3-й опытных групп ― полисахариды в количестве 100 и 150 г на голову в сутки. Использование полисахаридов в количестве 150 г способствовало повышению валового удоя 4 % молока на 6,18 %, выхода молочного белка ― на 4,87 %. Суточные удои молока натуральной жирности у коров 3-й опытной группы составляли 33,15 кг, что на 2,27 кг больше, чем в контрольной группе. Переваримость сухого и органического вещества в контрольной и опытных группах достоверно не различалась. Переваримость сырого протеина была выше у животных, получавших полисахариды. Включение в рационы коров полисахаридов в количестве 150 г на голову в сутки способствовало достоверному повышению переваримости сырой клетчатки до 54,4 % против 50,8 % в контроле. Азот рациона лучше переваривался и использовался  в группах, в которых скармливались  полисахариды. Экскреция азота с мочой была наибольшей в контрольной группе и составляла 302,16 г против 296,9 и 283,79 г в 2-й и 3-й опытных группах соответственно. Увеличение выведения азота из организма животных существенно отразилось на его использовании. У животных контрольной группы этот показатель составил 166,31 г, у коров 3-й опытной группы он был достоверно выше и составил 178,72 г. Баланс азота у животных во всех группах был положительный, но в 3-й опытной группе он был выше контроля на 10,5 %. Добавление в рацион 150 г полисахаридов способствовало увеличению выделения азота с молоком и его использованию от принятого с кормом, что в конечном итоге благоприятно сказалось на продуктивности. The cows of the reference group obtained beet molasses, groups 2 and 3 ― 100 and 150 g of polysaccharides per head daily. 150 g of polysaccharides increased gross yield of 4 %–milk by 6.18 %, milk protein ― by 4.87 %. Daily milk yield for the third group made up 33.15 kg, exceeding the reference group by 2.27 kg. Dry and organic matter digestibility had no significant differences among the groups. Crude protein digestibility was higher for the cows fed by polysaccharides. 150 g of polysaccharides significantly increased crude fiber digestibility up to 54.4 % versus 50.8 % of the reference variant. Nitrogen digestibility was better for the second and third groups. Nitrogen excretion via urine for the reference group was 302.16 g versus 296.9 and 283.79 g for the experimental groups. Increase in nitrogen excretion significantly affected its utilization being 166.31 g for the reference group and 178.72 g ― for the third group. All the groups had positive nitrogen balance but the third group exceeded the reference one by 10.5 %. 150 g of polysaccharides increased nitrogen secretion through milk and milk productivity.


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