The Quality of Fish Flour, Liver Meal, and Visceral Meal as Sources of Dietary Protein

1961 ◽  
Vol 18 (1) ◽  
pp. 85-91
Author(s):  
B. A. Larsen ◽  
W. W. Hawkins

Rats were used to test the digestibility and protein quality of dried preparations of muscle and viscera from cod and haddock, and of liver from cod.The digestibility of the preparations from muscle and viscera was good, and better than that of the preparation from liver.The metabolic utilization of nitrogen and the support of growth were good in the case of the muscle preparation, and poor in the case of the visceral and liver preparations.

Author(s):  
F.E. Van Niekerk ◽  
C.H. Van Niekerk

Sixty-four Thoroughbred and Anglo-Arab mares aged 6-12 years were used, of which 40 were non-lactating and 24 lactating. Foals from these 24 mares were weaned at the age of 6 months. Non-lactating and lactating mares were divided into 4 dietary groups each. The total daily protein intake and the protein quality (essential amino-acid content) differed in the 4 groups of non-lactating and 4 groups of lactating mares. The mares were covered and the effect of the quantity and quality of dietary protein on serum progestagen concentrations during pregnancy was studied. A sharp decline in serum progestagen concentrations was recorded in all dietary groups from Days 18 to 40 of pregnancy, with some individual mares reaching values of less than 4 ng/mℓ. Serum progestagen concentrations recorded in some of the non-lactating mares on the low-quality protein diet increased to higher values (p<0.05) than those of mares in the other 3 dietary groups at 35-140 days of pregnancy. A similar trend was observed for the lactating mares on a low-quality protein diet at 30-84 days of pregnancy. No such trends were observed in any of the other dietary groups. High-quality protein supplementation increased serum progestagen concentrations during the 1st 30 days of pregnancy. Lactation depressed serum progestagen concentrations until after the foals were weaned.


1981 ◽  
Vol 8 (1) ◽  
pp. 61-65
Author(s):  
Josephine Miller ◽  
Timothy H. Sanders

Abstract Four cultivars of peanuts (Florigiant, Florunner, Starr and Tamnut) grown at two locations (Lewiston, North Carolina (NC) and Stephenville, Texas (TX)) in the National Regional Variety Trials were evaluated for protein nutritional quality. Peanuts, blanched with a minimum of heat treatment and partially defatted on a Carver press, were extracted with hexane at room temperature. Rats were fed these peanut meals to provide 10% of dietary protein (N × 6.25). PER was calculated as the ratio of weight gained to protein consumed for the 28-day feeding period. Adjusted PER values of the 8 peanut meals ranged from 1.3 to 1.7 compared to a value of 2.5 for the casein control diet. No statistically significant differences existed in PER among the 4 cultivars grown in NC. Florunner and Tamnut produced in TX had lower PER values than Florigiant and Starr grown at the same location. Florigiant, Florunner, and Tamnut grown in NC had lower PER values than the same varieties from TX. Rats were fed diets with Florunner peanut meal supplemented with methionine, lysine, and threonine, singly and in all combinations, for 7-day periods. Differences in protein quality between NC and TX-produced peanuts were overcome by addition of methionine to the diets. When all three amino acids were added, peanut meal from both locations supported growth of young rats equal to that of casein.


Aquaculture ◽  
1983 ◽  
Vol 34 (3-4) ◽  
pp. 213-238 ◽  
Author(s):  
David A. Higgs ◽  
Ulf H.M. Fagerlund ◽  
Jack R. McBride ◽  
M.Dianne Plotnikoff ◽  
Bakhshish S. Dosanjh ◽  
...  

1970 ◽  
Vol 48 (3) ◽  
pp. 188-192 ◽  
Author(s):  
E. Yanez ◽  
J. M. McLaughlan

Nitrogen intakes and weight changes of male weanling Wistar rats fed two or more levels of test proteins or a non-protein diet for 2 weeks were determined. The slope-ratio plot for multiple-dose assays showed clearly that proteins markedly deficient in lysine yielded invalid assays. NPR values for lysine-deficient protein were markedly higher when determined at the 5% than at the 10% level of protein but foods limiting in methionine, threonine, or lysine and threonine yielded similar values at the two levels of dietary protein. It was concluded that protein quality per se is not a fixed value and depends on the level of protein fed even at low and moderate concentrations. When PER, NPR, and slope-ratio values for several samples were expressed as a percentage of the values for casein, NPR and slope-ratio methods gave almost identical results but PER yielded low values for poor quality proteins. However, the three methods rated the eight test proteins in the same relative order.


1987 ◽  
Vol 58 (2) ◽  
pp. 277-285 ◽  
Author(s):  
M. F. Fuller ◽  
A. Cadenhead ◽  
G. Mollison ◽  
B. Seve

1. Eight pigs with a mean weight of 48 kg were given, at a constant daily rate, diets of low (0.15) or high (0.30) protein content, very deficient in lysine, with or without a supplement of L-lysine (3.7 g/kg).2. Measurements of nitrogen and energy metabolism were made in four successive 14 d periods in a Latin-square design.3. The rate of protein accretion was substantially increased by increases in both protein and lysine supply, but the rate of heat production was not significantly changed.4. The rate of fat deposition varied inversely with the rate of protein accretion, being reduced by both protein and lysine supplements.5. The relation between heat production and protein accretion (allowing for a constant energy cost of fat deposition) suggested that heat production increased with additional protein accretion less when protein quality was improved than when more protein was given.


2004 ◽  
Vol 56 (1-2) ◽  
pp. 9-13 ◽  
Author(s):  
Larisa Ilijin ◽  
Milena Jankovic-Tomanic ◽  
Marija Mrdakovic-Mitic ◽  
Milena Vlahovic ◽  
Vesna Peric-Mataruga ◽  
...  

The response of starved Morimus funereus larvae refed with an artificial diet (Galford, 1967) was examined in the present paper. Larvae were offered diets varying in protein quality (soya protein, casein, and gelatin). Refeeding with the Galford diet (G I) and two modifications of it in which soya protein was supplemented with casein (G II) or gelatin (G III) led to an increase of body mass. Different protein quality in the nutritive substrate influenced both the quantity and quality of midgut and brain proteins.


1995 ◽  
Vol 74 (2) ◽  
pp. 163-172 ◽  
Author(s):  
R. Nieto ◽  
C. Prieto ◽  
I. Fernández-Fígares ◽  
J. F. Aguilera

A slaughter experiment was carried out to study the effect of dietary protein quality on maintenance energy requirements and energy costs for protein accretion and fat deposition in fast-growing broiler-type male chickens. Three isonitrogenous (200 g crude protein/kg DM) and isoenergetic (14 kJ metabolizable energy (ME)/g DM) semipurified diets based on soyabean meal unsupplemented (diet S) or supplemented with 20 g L-lysine/kg (diet SL) or 2 g DL-methionine/kg (diet SM), in order to promote a decrease or an increase in growth rate respectively, were selected and given at four feeding levels (ad lib. or restricted to 40, 28 and 18 g DM/d, on average) to 10-d-old fast-growing male broiler-type chicks for 2 weeks. Both the efficiency with which ME was used to support growth (kg) and the maintenance requirements (MEm) significantly decreased inversely to the biological value of the dietary protein (kg = 0·660, 0·600 and 0·572; MEm = 597, 522 and 464 k.J/kg W0·75 per d, for diets SI, S and SM respectively). The partial efficiencies of use of ME for protein accretion (kp) or fat deposition (kf) were also inversely related, the former increasing with the quality of the protein offered. An alternative procedure was used to try to overcome the statistical problems inherent in the partition of ME between fat and protein.


Liquidity ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 151-159
Author(s):  
Pitri Yandri

The purpose of this study is (1) to analyze public perception on urban services before and after the expansion of the region, (2) analyze the level of people's satisfaction with urban services, and (3) analyze the determinants of the variables that determine what level of people's satisfaction urban services. This study concluded that first, after the expansion, the quality of urban services in South Tangerang City is better than before. Secondly, however, public satisfaction with the services only reached 48.53% (poor scale). Third, by using a Cartesian Diagram, the second priority that must be addressed are: (1) clarity of service personnel, (2) the discipline of service personnel, (3) responsibility for care workers; (4) the speed of service, (5) the ability of officers services, (6) obtain justice services, and (7) the courtesy and hospitality workers.


2019 ◽  
Vol 9 (01) ◽  
pp. 47-54
Author(s):  
Rabbai San Arif ◽  
Yuli Fitrisia ◽  
Agus Urip Ari Wibowo

Voice over Internet Protocol (VoIP) is a telecommunications technology that is able to pass the communication service in Internet Protocol networks so as to allow communicating between users in an IP network. However VoIP technology still has weakness in the Quality of Service (QoS). VOPI weaknesses is affected by the selection of the physical servers used. In this research, VoIP is configured on Linux operating system with Asterisk as VoIP application server and integrated on a Raspberry Pi by using wired and wireless network as the transmission medium. Because of depletion of IPv4 capacity that can be used on the network, it needs to be applied to VoIP system using the IPv6 network protocol with supports devices. The test results by using a wired transmission medium that has obtained are the average delay is 117.851 ms, jitter is 5.796 ms, packet loss is 0.38%, throughput is 962.861 kbps, 8.33% of CPU usage and 59.33% of memory usage. The analysis shows that the wired transmission media is better than the wireless transmission media and wireless-wired.


2018 ◽  
Vol 5 (2) ◽  
pp. 102
Author(s):  
Enike Dwi Kusumawati ◽  
Selvinus Lawu Woli ◽  
Aju Tjatur Nugroho Krisnaningsih ◽  
Waluyo Edi Susanto ◽  
Syam Rahadi

ABSTRAKPenelitian ini dilakukan untuk mengetahui motilitas dan viabilitas spermatozoa ayam kampung pada suhu 5oC menggunakan pengencer dan lama simpan yang berbeda. Metode yang digunakan dalam penelitian ini adalah penelitian laboratorium menggunakan Rancangan Acak Lengkap (RAL) Faktorial dengan pengencer ringer lactat solution, air kelapa dan tanpa pengencer serta lama simpan 0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, masing-masing diulang 10 kali. Variabel yang diamati yaitu motilitas dan viabilitas spermatozoa. Analisa data yang digunakan adalah analisis varian. Hasil analisis data menunjukkan bahwa motilitas dan viabilitas spermatozoa menggunakan pengencer ringer lactat solution lebih tinggi (P<0,01) serta dapat bertahan sampai lama simpan 24 jam dibandingkan air kelapa dan tanpa pengencer. Adapun nilai motilitas ringer lactat solution, air kelapa dan tanpa pengencer pada lama simpan 24 jam masing-masing sebesar 43,5±17,17%; 8±4,83%; 6,5±2,4%, sedangkan nilai viabilitasnya sebesar 83,2±7,25%; 64,6±3,20%; dan 63,1±2,33%. Kesimpulan dari hasil penelitian ini adalah ringer lactat solution lebih baik dibandingkan air kelapa dan tanpa pengencer dalam mempertahankan kualitas semen ayam kampung pada suhu simpan 5oC sampai lama simpan 24 jam.Kata Kunci : air kelapa, ayam kampung, motilitas, spermatozoa, viabilitas  ABSTRACTThis study was conducted to determine the motility and viability of spermatozoa of Native chickens at 5oC using different diluents and time storage. The method used in this study was laboratory research using Factorial Completely Randomized Design with ringer lactate solution, coconut water and without diluent at 0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 hours of time storage each repeated 10 times. The variables observed were motility and viability of sperm. Data analysis used is variance analysis. The results of data analysis showed that the motility and viability of spermatozoa using ringer lactate solution diluents was higher (P <0.05) than coconut water and without diluents. The motility values of ringer lactat solution, coconut water and without diluents were 43,5±17,17%; 8±4,83%; 6,5±2,4% respectively, while the viability values were 83,2±7,25%; 64,6±3,20% and 63,1±2,33%. The conclusion of this study is that ringer lactat solution is better than coconut water an without diluents in maintaining the quality of Native chicken semen at a storage temperature of 5oC until 24 hours.Keywords: coconut water, motility, native chicken, sperm, viability


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