Feeding Different Levels Of Protein Research Articles

Effect of feeding different levels of protein of total mixed ration containing Maize (Zea mays) Cob on the performance of growing crossbred calves

Effect of feeding different levels of protein of total mixed ration containing Maize (Zea mays) Cob on the performance of growing crossbred calves

Supplementation of Threonine and Tryptophan in Feed with Different Crude Protein Levels on Body Dimensions of Native Chickens in the Grower Phase (6 - 14 Weeks)

The purpose of this study is to find out the influence of feeding different levels of protein in feed on the dimensions of the body of the village chicken grower phase (6-14 weeks), to find out the addition of amino acids treonine and tryptophan in feed to the dimensions of the body of the village chicken grower phase (6-14 weeks) and to know the interaction of protein leveling and the addition of amino acids treonine and tryptophan in feed to the dimensions of the body of the village chicken grower phase (6-14 weeks). This research has been conducted in Sasi Subdistrict, Kefamenanu City District, North Central Timor Regency for 8 weeks from October-December 2020. This study used 6 weeks old native chickens as many as 120 heads. The method used in this study is a complete random design of factorial patterns of 2 x 3 i.e. 2 levels of amino acids and 3 levels of coarse protein. Treatment given A1C1 (treonine 0.50% + tryptophan 0.15% + protein 15%), A1C2 (treonine 0.50% + tryptophan 0.15% + protein 17%), A1C3 (treonine 0.50% + tryptophan 0.15% + protein 19%), A2C1 (treonine 0.75% + tryptophan 0.20% + protein 15%), A2C2 (treonine 0.75% + tryptophan 0.20% + protein 17%), A2C3 (treonine 0.75% + tryptophan 0.20% + protein 19%). The variables observed in this study were weight, chest circumference, body length, length of sternum, femur length, tibia length, shank length, shank circumference and finger length. The data obtained was analyzed using variance analysis and multiple distance tests. Statistical analysis showed that crude protein levels had an unreal effect on chest circumference, body length, breastbone length, femur length, tibia length, shank length, shank circumference and finger length. Levels of amino acids (treonine + tryptophan) have a noticeable effect on weight, chest circumference, body length, length of sternum, tibia length, shank length and finger length. There is an interaction between amino acids (treonine + tryptophan) and crude protein levels against chest circumference, femur length, shank circumference and finger length.

A NOTE ON THE EFFECT OF FEEDING DIFFERENT LEVELS OF PROTEIN ON THE GROWTH OF WEANED CALVES ON PASTURE

IN the experiment reported, the effect of feeding different levels of protein, on the performance of young growing calves on pasture, was investigated. Thirty-six calves, mainly Friesian x Bunaji Zebu crosses, of age 3 - 4 months were divided into 3 groups for the concentrate treatments used. The 3 treatments were high protein: low grain feed (HPF), medium protein: medium grain feed (MPF) and low protein: high grain feed (LPF). The dietary protein: grain levels were obtained by mixing groundnut cake (GNC) and sorghum grain, by weight, in the ratios of 75:25; 50:50; and 25:75; respectively. Calves received 1kg DM of concentrate mixture plus free access to Rhodes grass (Chloris gayana) grazing. The average daily live-weight gains of calves were 0.84, 0.75 and 0.87kg for treatments 1,2 and 3 respectively. These did not differ significantly when tested statistically. The results indicate that the lowest of the three protein levels was adequate for the calves for optimum performance in this experiment.

Effect of feeding different levels of protein and energy of Bureau of Indian Standard specification on production performance of crossbred (HS x GH) grower pig

Effect of feeding different levels of protein and energy of Bureau of Indian Standard specification on production performance of crossbred (HS x GH) grower pig

Effect of feeding different levels of proteins on growth, blood biochemical and immunological parameters in laying Khaki Campbell ducks

A feeding experiment was carried out to study the effect of feeding different levels of protein during laying (20-40 weeks) on growth, feed consumption and mortality in Khaki Campbell ducks. 180 ducks were distributed randomly into three treatment groups viz. T1, T2 and T3 with three replicates of 20 ducks (15 females and 5 males) in each replicate. Birds were allotted to different groups in such a manner that there was no significant difference between the average 20th week body weight among the treatment groups. Between 20-40 weeks, ducks were provided with isocaloric diets with 16, 18 and 20 per cent crude protein in to groups T1, T2 and T3 respectively with ad lib provision of feed and water. Results indicated that supplementation of crude protein of about 18% in the ration during laying period might be sufficient with respect to growth trait in Khaki Campbell layer ducks. Further, the mortality ranged from 2 to 3.2% during laying stage, which was within normal range indicating that the different levels of protein supplementation in diet could not influence the health condition of ducks. The effect of different levels of protein supplementation in the diet during active stage of laying (30th week) was found to be non-significant, with respect to blood biochemicals like total protein, albumin, abumin:gobulin ratio, glucose, urea and creatinine concentration. The level of primary antibody in T1, T2 and T3 of female ducks were 6.00 ± 0.00, 5.33 ± 0.33 and 6.33 ± 0.33 and for combined sex they were 5.00 ± 0.52, 5.33 ± 0.33 and 5.67 ± 0.42, respectively.

Effect of Feeding Different Levels of Protein on Mortality, Carcass Characteristics, Biochemical Parameter, Time Motion Study and Economics of Desi Ducks under Intensive System of Rearing

Effect of Feeding Different Levels of Protein on Mortality, Carcass Characteristics, Biochemical Parameter, Time Motion Study and Economics of Desi Ducks under Intensive System of Rearing

Dietary protein level and performance of growing Baladi kids.

A study was conducted to evaluate the effect of feeding different levels of protein to black Baladi breed kids. Weanling Baladi kids (n=18; 75 to 90 days old) were selected and individually housed at our experimental farm. Kids were divided randomly to one of the three treatments for 12 weeks. The three dietary treatments were: T1: control ration, formulated according to NRC to cover the protein (level 1) and other nutrients requirements. T2: ration formulated to cover only 75% of protein (level 2) recommended by NRC. T3: control diet + 2.4 g undegradable methionine (Smartamine®)/day/kid (level 3). Feed intake, initial and monthly body weights were recorded. Blood samples were collected monthly and analyzed for metabolites and Co, Zn and Cu levels. Decreasing the dietary level of protein (T2) negatively affected (P<0.05) the total live weight gain, average daily gain and feed conversion ratio when compared with the control and T3 groups. Moreover, treatment, time and time × treatment caused a significant change on Co concentration in blood serum with higher value at the end of the experiment. Treatments had a significant effect (P<0.05) on blood serum cholesterol and protein levels. Undegradable methionine supplementation (T3) significantly increased longissimus dorsi weight, fat thickness and omental fat%. In conclusion, feeding Baladi kids below the NRC requirements of protein negatively affect the growth performance and feed efficiency. The recommended protein level by NRC for growing kids cover the requirements of growing black Baladi kids for maximum growth and productivity.

Effect of Feeding Different Levels of Protein on Production Traits of Saudi Baladi Chickens Raised in Confinement

Abstract Najib, H. 1994. Effect of feeding different levels of protein on production traits of Saudi Baladi chickens raised in confinement. J. Appl. Anim. Res., 6: 177–181. An experiment was conducted to ascertain the response of the Saudi Baladi layers to the commonly used levels of protein (16 and 18.4%) with exotic layers in Saudi Arabia. The criteria measured, were: hen-day and hen-housed egg production, egg weight, feed consumption and efficiency, egg shell quality and livability. No significant effect of protein level was found on-all traits measured It is suggested that further studies, using multiple levels of protein and energy are needed to determine the nutritional requirement of the Saudi Baladi layers.

The Effect of Levels of Protein and Vitamin B12 in Hen Diets on Egg Production and Hatchability of Eggs and on Livability and Growth of Chicks

The effects of feeding different levels of protein and vitamin B12 on egg production and hatchability of eggs of Single Comb White Leghorn hens were studied. Diets containing 16 and 32% corn-soybean meal protein with and without 10 μg. of vitamin B12 per kg. of diet were employed. Egg production and fertility of eggs were not significantly affected by protein level or vitamin B12 supplement. However, increasing protein level in the hen diets resulted in a significant decrease in hatchability. Vitamin B12 supplementation of both diets significantly improved hatchability of eggs. However, the supplementary vitamin B12 was not adequate to support desirable hatchability when the diet contained 32% protein. The high level of protein, and the addition of vitamin B12 to the 16% protein diet significantly increased egg weight.Chicks hatched from eggs produced by hens fed the different experimental diets were used to study the effect of breeder diets on chick growth and livability. A deficiency of vitamin B12 in the breeder had a detrimental effect on chick growth and livability. Increasing the protein level of the chick diet from 22 to 32% resulted in a further decrease in growth when the chicks were derived from vitamin B12 deficient hens. A high level of protein in the breeder diet also depressed chick growth. This growth depression was not counteracted by a dietary supplement of 500 μg. of vitamin B12/kg., by an oral dose of 50 μg. of vitamin B12/chick at hatching, or by an injection of 1 or 10 μg. of vitamin B12/bird at hatching. Vitamin B12 supplied through the hen diet was more effective than supplementation of chick diet in stimulating early chick growth. Mortality was higher in chicks hatched from hens fed the 16% protein diet than in those from hens fed 32% protein. This was the reverse of embryo mortality during incubation.

Albumin Content of Rat Hepatic Cells at Different Levels of Protein Intake

A study was carried out to determine whether the protein content of the diet affects serum albumin synthesis by regulating the number of liver cells actively making albumin. A fluorescent anti-serum was prepared against rat albumin and used for identification of liver cells containing albumin. The number of albumin-containing cells in the liver was greatest when animals were fed a diet rich in protein; the number was at an intermediate level when maintained with a stock diet; and the number was very infrequent when the diet was devoid of protein. This observation is consistent with the effects of feeding different levels of protein on serum albumin turnover, on the protein content of the liver, and on the distribution of albumin in the liver cell.

The effect of feeding different levels of protein concentrates on the susceptibility of chickens to Salmonella gallinarum infection

The effect of feeding different levels of protein concentrates on the susceptibility of chickens to Salmonella gallinarum infection