• Asian-Australasian Journal of Animal Sciences
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• 제14권8호
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• pp.1118-1124
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• 2001

Fifteen lactating crossbred cows were randomly allotted to three groups of 5 each, and fed three isoproteinous concentrate mixture varying in RDP and UDP ratios, viz. 71: 29 (T1) and 58: 42 (T2) and 44: 56 (T3), along with green maize and wheat straw given as 2/3 and 1/3 of total roughage respectively, for a period of 120 days. The DM intake (kg/d) differed significantly (p<0.01) among the treatments as well as among the fortnights over a period of 120 days. DMI (kg/d) progressively increased from first to eighth fortnight in all the treatments. The daily DMI (% BW) was significantly (p<0.01) lower in T1 (2.37) than those of T2 (2.82) and T3 (2.67). The body weights of cows decreased up to 4th fortnight in T1 and up to 3rd fortnight in T2 and T3, then it showed an increasing trend till the end of the experiment in all the treatments. Cows in T1 lost 10 kg body weight but cows in T2 and T3 gained 23 and 12 kg the body weight, respectively. Both the milk and FCM yield differed significantly (p<0.01) among the fortnights. The FCM yield increased up to 2nd fortnight in all the treatments and thereafter, the FCM yield declined gradually as the lactation advanced. The FCM yield (kg/d) was significantly (p<0.05) higher in T3 (10.47) than in T2 (9.81) and T1 (9.68), however, milk yield, SCM yield and milk energy yield did not differ among the treatments as well as among the fortnights. Fat and protein % in milk increased as the lactation advanced. However, fortnightly SNF % in milk showed an irregular trend. The % fat, protein, SNF and total solids in milk differed significantly (p<0.01) among the fortnights. The % fat and protein in milk varied significantly (p<0.01) among the treatments, being lowest in T1 and highest in T3. The feed efficiency for milk production showed a non-significant variation among the treatments as well as among the fortnights, but increased with the increase in UDP level. It is concluded that by increasing the UDP level from 29 to 56 per cent of CP in the diet of medium producing cows, the milk production increases and cost of milk production reduces.

• Asian-Australasian Journal of Animal Sciences
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• 제26권9호
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• pp.1295-1303
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• 2013

The aim of this study was to determine the effect of different physical forms and urea treatment of rice straw on feed intake, rumen fermentation, and milk production. Four, multiparous Holstein crossbred dairy cows in mid-lactation with initial body weight (BW) of $409{\pm}20kg$ were randomly assigned according to a $4{\times}4$ Latin square design to receive four dietary treatments. The dietary treatments were as follows: untreated, long form rice straw (LRS), urea-treated (5%), long form rice straw (5% ULRS), urea-treated (2.5%), long form rice straw (2.5% ULRS) and urea-treated (2.5%), chopped (4 cm) rice straw (2.5% UCRS). Cows were fed with concentrate diets at a ratio of concentrate to milk yield of 1:2 and rice straw was fed ad libitum. The findings revealed significant improvements in total DM intake and digestibility by using long and short forms of urea-treated rice straw (p<0.05). Ruminal pH was not altered among all treatments (p>0.05), whereas ruminal $NH_3$-N, BUN and MUN were found to be increased (p<0.01) by urea-treated rice straw as compared with untreated rice straw. Volatile fatty acids (VFAs) concentrations especially those of acetic acid were decreased (p<0.05) and those of propionic acid were increased (p<0.05), thus acetic acid:propionic acid was subsequently lowered (p<0.05) in cows fed with long or short forms of urea-treated rice straw. The 2.5% ULRS and 2.5% UCRS had greater microbial protein synthesis and was greatest when cows were fed with 5% ULRS. The urea-treated rice straw fed groups had increased milk yield (p<0.05), while lower feed cost and greater economic return was in the 2.5% ULRS and 2.5% UCRS (p<0.01). From these results, it could be concluded that 2.5% ULRS could replace 5% ULRS used as a roughage source to maintain feed intake, rumen fermentation, efficiency of microbial protein synthesis, milk production and economical return in mid-lactating dairy cows.

• Journal of Animal Science and Technology
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• 제58권6호
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• pp.19.1-19.7
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• 2016

Background: Cowpea (Vigna unguiculata [L.]) is a legume cultivated throughout most tropical countries and is valued as food and feed for human and livestock respectively. The search for an improved cowpea variety has been on-going with the aim of improving traits such as grain yield, drought and pest resistance. But no information exist on the feeding value of these improved varieties. Phosphate (P) fertilizer application is recommended to augment grain yield in grain legumes but data on the effect of P fertilizer on haulm quality is limited. Results: Two separate experiments were conducted to determine the effect of P fertilizer dose on the nutritive value of haulms from different cowpea varieties (V). In experiment 1, effect of three P doses (30, 60 and 90 kg $P_2O_5/ha$) on in vitro gas production (IVGP) characteristics, concentrations of digestible organic matter (DOM), crude protein (CP), acid detergent fiber (ADF) and neutral detergent fiber (NDF) of haulms from five cowpea varieties (Zaayura-SARC 4-75, Songotra-IT97K-499-35, Hewale-IT93K-192-4, IT99K 573-1-1 and Asomdwe-IT94K-410-2) were investigated using the $3(P){\times}5(V)$ factorial treatment arrangements in a completely randomized design. In experiment 2, the effects of two P doses (30 and 90 kg $P_2O_5/ha$) and two varieties (Zaayura-SARC 4-75 and Hewale-IT93K-192-4) on the voluntary feed intake, live weight, haematology and carcass characteristics of Djallonke lambs were also assessed using a $2(P){\times}2(V)$ factorial treatment arrangement. The $V{\times}P$ interaction significantly affected CP, NDF and ADF with CP concentration increasing with increase in P doses in Zaayura-SARC 4-75 and Asomdwe-IT94K-410-2. Whilst an increase (P < 0.05) in NDF was observed in Songotra-IT97K-499-35and Asomdwe-IT94K-410-2 as P doses increased, the other V only increased from P dose 30 to 60 kg/ha and declined at P dose 90 kg/ha. The ADF decreased (P < 0.05) with increase in P dose for all V with the exception of Songotra-IT97K-499-35. There was a significant V effect on DOM with the highest reported in Zaayura-SARC 4-75 (43.44 %). Daily DM intake, carcass length and blood urea nitrogen of the lambs were significantly affected by the V x P interaction. There was a significant V effect on globulin and P effect on live weight at slaughter, dressed weight, chuck, leg, loin, rib and flank and liver and lungs. Conclusion: It can be concluded that nutrient concentrations of cowpea haulms were positively influenced by different P dose and varieties with favorable effects on growth, haematology and carcass composition of lambs. Varieties Zaayura-SARC 4-75 and Hewale-IT93K-192-4 at P dose at 90 kg/ha are recommended to enhance growth performance and carcass yield of Djallonke lambs.

• Journal of Animal Science and Technology
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• 제48권6호
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• pp.839-846
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• 2006

본 연구는 분만 전후 40두의 젖소에 무첨가, sucrose, sucrose+PG 및 sucrose+PG+NIS 복합제 첨가의 4 처리로 급여 시 사료섭취량, 산유량 혈중대사물질 및 대사성 질병 발생에 미치는 영향을 구명하기 위하여 사양시험을 수행하였는데, 주요 연구결과는 다음과 같다.분만전 건물섭취량은 처리 간에 차이가 없었지만 sucrose+PG+NIS 복합제를 투여하였을 때 대조구 보다 높았으며(P<0.05), sucrose 급여시 분만 후 3주 동안의 건물섭취량이 대조구에 비하여 유의있게 높았다(P<0.05). 혈중 glucose 함량은 처리 간에 유의적인 차이가 없었으나, 분만 전 21일 평균 NEFA 함량은 대조구에 비하여 sucrose+PG 혼합제를 투여한 처리구에서 유의있게 낮은 수준을 보여주었다 (P<0.05). 그러나 분만 당일 및 분만 후 21일 동안에는 처리 간에 유의적인 차이를 보여주지는 않았다. 처리구별 산유량에 있어서는 첨가제의 급여에 의한 차이를 보여주지 않았으나, 유지율에 있어서는 sucrose 급여구와 sucrose+PG+NIS 복합제를 급여한 구에서 대조구에 비하여 유의있게 높은 수준을 보여주었다. 그리고 4 % FCM에서는 대조구에 비하여 모든 처리구에서 유의있게 높았으며 (P<0.05), 대사성질병 발생은 대조구에서 첨가제 급여구에 비하여 다소 많은 개체에서 후산정체, ketosis 및 유방염이 발생하였다.본 시험의 결과에서 sucrose와 같이 단맛으로 기호성을 증진시켜주는 것과 에너지원으로 이용될 수 있는 PG와 함께 사료의 이용성을 높여줄 수 있는 NIS를 첨가하여 급여할 경우에 생산성을 높이고 대사성질병의 발생을 줄여 낙농농가의 생산성 향상에 기여할 수 있을 것으로 사료되었다.

• Journal of Animal Science and Technology
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• 제44권3호
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• pp.297-304
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• 2002

본 연구는 경상북도 축산기술연구소에서 보유하고 있는 재래닭 160수를 공시하여 인삼부산물(잎 줄기), 산약부산물(박피후 건조껍질), 한약(달인후 찌꺼기) 부산물을 각각 5%씩 기본사료에 첨가 급여하였다. 시험기간은 부화후 8주령에 시작하여 20주령에 종료하였으며, 재래닭의 사료섭취량, 증체량, 사료요구율, 폐사율등의 생산성에 미치는 영향을 조사하였다. 영양소 섭취량에서 건물섭취량은 대조구가 125.79g 인삼구 122.26g, 산약구 122.30g, 한약구 123.72g으로 대조구가 처리구에 비해 가장 많이 섭취하였으나 통계적 유의성은 없었다. 건물소화율은 대조구와 산약구에서 62.89% 및 61.20%로서 인삼구의 55.44%, 한약구의 59.76 %보다 높았다(p$<$0.05). 체중변화는 전체적으로 수탉이 암탉보다 월등히 무거웠으며, 16주령에서는 대조구, 인삼구, 산약구, 한약구가 각각 1,436.6g, 1,427.2g, 1,546.0g, 1,442.0g로서 특히 산약구가 가장 무거웠다(p$<$0.05). 사료섭취량은 대조구, 인삼구, 산약구, 한약구에서 각각 6,087 g, 5,947g, 5,816g, 5,852g으로 대조구가 가장 높았다. 사료요구율은 전시험기간 동안 대조구에 비해 처리구가 다소 높은 경향이었고, 특히 인삼구에서 가장 높은 결과를 나타내었다. 폐사수는 대조구에 비해 처리구에서 유의성 있게 낮은 결과를 나타내었다(p$<$0.05). 재래닭의 생체중, 도체중 및 각 부분육 생산량은 처리구 사이에 유의성이 없었으나, 복강지방량은 대조구와 한약구에서 산약구와 인삼구에 비해 높았다(p$<$0.05).

• Journal of Animal Science and Technology
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• 제46권2호
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• pp.193-200
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• 2004

본 연구는 거세우가 1일 필요로 하는 유지를 위한 에너지요구량을 구하기 위해 실시하였다. 유지를 위한 에너지요구량 실험은 6개월령에 거세한 평균체중 376.6$\pm$12.5kg의 한우 9두를 공시하였고, 사료에너지 섭취수준은 배합사료와 볏짚의 비율을 56:44로 하면서 유지 수준(Maintenance)의 약 0.8배(0.8M), 1.2배(1.2M), 1.6배(1.6M) 섭취할 수 있도록 사료급여량으로 조절하여 에너지 균형법에 의해 실시하였다. 대사체중당 총 건물섭취량은 0.8M, 1.2M 그리고 1.6M이 각각 48.5, 64.9그리고 86.5g/$BW^{0.75}$을 섭취한 것으로 나타났고, 에너지 및 단백질의 농도가 같았던 본 시험사료는 건물섭취량을 증가시켜 총에너지 섭취량을 높여도 건물, 유기물, 조단백질, 조섬유, 조지방, 가용무질소물의 소화율에는 영향이 없었다. 평균 대사체중당 총 에너지섭취량은 0.8M, 1.2M, 1.6M에서 각각 190.8, 255.8, 340.9kcal/$BW^{0.75}$이었고, 분으로 손실된 에너지는 총 에너지섭취량의 약 41% 수준, 뇨로 손실된 에너지는 1.5% 이하였다. 또한 반추위 발효과정에서 발생하는 메탄에 의한 에너지 손실은 5${\sim}$9%의 범위였으며, 체열에 의한 손실량은 40${\sim}$60% 이었다. 0.8M, 1.2M, 1.6M의 에너지 수준별 대사에너지 섭취량, 92.6, 134.8, 181.0kcal/$BW^{0.75}$과 각각의 체축적에너지 -20.7, 6.2, 38.5kcal/BW0.75과의 관계식에서 X축 절편값, 즉 유지를 위한 에너지요구량은 대사에너지로 124.3kcal $ME/BW^{0.75}$로 나타났다.

• Asian-Australasian Journal of Animal Sciences
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• 제22권5호
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• pp.651-658
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• 2009

Four multiparous lactating Holstein cows fitted with rumen cannulae were fed diets varying in the amount and source of rumen-degradable carbohydrates (starch vs. sucrose) to examine their effects on rumen fermentation, nitrogen metabolism and lactation performance. A $4{\times}4$ Latin square with four diets and four periods of 28 days each was employed. Corn starch and sucrose were added to diets and corn starch was replaced with sucrose at 0 (0 S), 2.5 (2.5 S), 5.0 (5.0 S) 7.5% (7.5 S) of diet dry matter in a total mixed ration (TMR) containing 60% concentrate and 40% forage (DM basis). Replacing corn starch with sucrose did not affect (p>0.05) ruminal pH which averaged 6.41, but the ruminal pH for 7.5 S decreased more rapidly at 2 h after morning feeding compared with other treatments. Sucrose reduced ($p{\leq}0.05$) ruminal $NH_3-N$ concentration (13.90 vs. 17.09 mg/dl) but did not affect peptide-N concentration. There was no dietary effect on total volatile fatty acids (110.53 mmol/L) or the acetate to propionate ratio (2.72). No differences (p>0.05) in molar proportion of most of the individual VFA were found among diets, except for the molar proportion of butyrate that was increased ($p{\leq}0.05$) with the inclusion of sucrose. Total branched chain volatile fatty acids tended to increase ($p{\geq}0.051$) for the control treatment (0 S) compared with the 7.5 S treatment. Dry matter intake, body weight changes and digestibility of DM, OM, CP, NDF and ADF were not affected by treatments. Sucrose inclusion in the total mixed ration did not affect milk yield, but increased milk fat and total solid percentage ($p{\leq}0.05$). Sucrose tended ($p{\geq}0.063$) to increase milk protein percentage (3.28 vs. 3.05) and reduced ($p{\leq}0.05$) milk urea nitrogen concentration (12.75 vs. 15.48 mg/dl), suggesting a more efficient utilization of the rapidly available nitrogen components in the diet and hence improving nitrogen metabolism in the rumen.

• Asian-Australasian Journal of Animal Sciences
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• 제16권10호
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• pp.1510-1517
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• 2003

Two experiments were carried out to evaluate the effects of brewery waste (BW) replacement of concentrate (C) in growing duck diets. In Exp. 1, which was carried out on-station, 300 ducklings were allocated in a $2{\times}5$ factorial experiment: Two breeds (local Muscovy and crosses of French and local Muscovy)${\times}5$ levels of C and with BW offered ad libitum. Concentrate only ad libitum as the control diet (C100), and levels of 75% (C75), 50% (C50), 25% (C25) and 0% (C0) of the amount of the control diet consumed, and with BW ad libitum. In Exp. 2, 200 ducklings were allocated in a $2{\times}2$ factorial experiment on five smallholdings: two breeds (local and crossbred Muscovy ducks)${\times}2$ diets (the C100 and C50 diets from Exp.1). In Exp.1 total dry matter (DM), BW, crude fiber (CF) and crude protein (CP) intakes were highest on the C0 diet and ME and lysine intakes lowest (p<0.001). Daily live weight gains were higher for the crossbred ducks than for the local Muscovies (p<0.05) and were highest for treatments C100 and C50, and lowest for treatment C0 (p<0.05). Weights of breast muscle, liver and abdominal fat were significantly higher for the crossbred ducks. Breast and thigh muscle and abdominal fat weights were significantly higher for the C100, C75 and C50 diets, while gizzard weights were highest for the C25 and C0 treatments. Net profits were higher for the crosses, and for treatments C50 and C25. In Exp. 2 total DM, CF and CP intakes were significantly higher for the C50 diet, and ME intakes lower (p<0.001). Daily gains of the crosses were significantly higher than those of the local Muscovy ducks, and were similar for the C100 and C50 diets. The highest net profits were from the crosses and ducks fed the C50 diet. It was concluded that BW can replace 50% of the concentrate in growing Muscovy duck diets without reducing daily live weight gains and with improved economic benefits.

• Asian-Australasian Journal of Animal Sciences
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• 제5권3호
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• pp.487-494
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• 1992

This experiment was conducted to study the effect of addition of Lucerne juice (LJ) obtained by mechanical extraction of freshly harvested crop on the nutritive value of rice straw silage. Rice straw (RS) was ensiled with intact, NaOH or $NH_3$ treated LJ at 3:7 ratio on fresh weight basis (LJ RS, LJ NaOH RS and LJ $NH_3$ RS, respectively). Each alkali was mixed with fresh juice at a level of 4% of rice straw dry matter just before ensiling. Rice straw ensiled with water was prepared as the control (W RS). In the digestion trial, goats were allocated in a $4{\times}4$ Latin-square design and fed the diet containing three parts of RS silage and one part of wheat bran (DM basis). For the goats receiving the control silage, urea was supplemented at feeding time so as to adjust the nitrogen intake except for goats on LJ $NH_3$ RS silage. Crude protein content of RS silage was increased from 5.2 to 9.1% (DM basis) by the addition of intact LJ and to about 24% by $NH_3$ treated LJ. The control W RS silage contained only trace amount of lactic acid and was dominated by acetic and butyric acid. The addition of intact LJ reduced butyric acid content and $NH_3-N/TN$ of the silage whereas the addition of alkalized LJ increased those values and shifted to a butyrate type fermentation. Nutrient digestibilities and nitrogen balance of goats were almost the same when they were fed W RS and LJ RS silage indicating the addition of intact LJ did not improve the nutritive value. The addition of alkalized LJ significantly increased the fiber digestibilities of RS silage and $NH_3$ treatment was more effective than NaOH treatment. Postprandial ruminal $NH_3-N$ and blood urea nitrogen (BUN) concentrations were decreased by feeding LJ NaOH RS silage suggesting ruminal protein synthesis was enhanced along with the increase of energy supply for supply for rumen microbes by the alkali treatment. The advantageous fiber digestibilities of LJ $NH_3$ RS silage compared with those of LJ NaOH RS silage might be attributable to a sufficient nitrogen supply for microbial fiber digestion in the rumen.

• 대한지역사회영양학회지
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• 제10권5호
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• pp.693-699
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• 2005

Protein-calorie malnutrition is common in maintenance dialysis patients. Indeed, diabetic patients with chronic renal failure are considered to be at increased risk of malnutrition. The aim of this study was to compare the nutritional status and markers of inflammation of hemodialysis patients with and without type 2 diabetes. We compared nutritional parameters and C-reactive protein (CRP) as a marker of inflammation in 30 type 2 diabetic patients and age-matched 30 non-diabetic patients with hemodialysis. Serum albumin was significantly lower in patients with type 2 diabetes $(3.45\pm0.43g/dL)$ than in non-diabetic patients $(3.64\pm0.36 g/dL)$ (p<0.05). In contrast, the concentration of serum CRP was significantly higher in type 2 diabetes $(1.42\pm1.8mg/dL)$ (p<0.05). There were significant negative-relationships between serum albumin and CRP level in both diabetic (r=-0.553, p<0.01) and non-diabetic (r=-0.579, p<0.01) patients. In diabetic patients, serum albumin level was significantly correlated with hemoglobin (r = 0.488, p < 0.01) and hematocrit (r=0.386, p < 0.01). Diabetic patients as compared to non-diabetic patients showed a significant (p < 0.01) increased serum triglyceride (TG) $(153.1\pm80.1mg/dL\;vs\;101.6\pm62.4mg/dL)$ and decreased serum HDL cholesterol $(36.89\pm13.48mg/dL\;vs\;47.00\pm14.02mg/dL,\;P<0.05)$. There were significant correlations in the intake of calorie and serum albumin levels in both diabetic (r=0.438, p< 0.05) and non-diabetic (r=0.527, p<0.05) patients. Serum CRP level was negatively correlated with calorie (r= -0.468, p < 0.05), protein (r=-0.520, p < 0.01) and fat intakes (r=-0.403, p < 0.05) in diabetic patients and calorie (r=-0.534, p<0.05) and protein intakes (r=-0.559, p<0.05) in non-diabetic patients. The prevalence of protein malnutrition and the risk factors of cardiovascular disease were significantly higher in type 2 diabetic patients than in non-diabetic hemodialysis patients. Thus, we can suggest that the higher comorbidity and mortality rate in diabetic hemodialysis patients are partially explained by malnutrition and inflammation.