Protein requirements of male and female Australian White turkeys to eight weeks of age

1972 ◽  
Vol 12 (56) ◽  
pp. 252
Author(s):  
WJ Yule

Commercial Australian White Turkey poults were kept in small pens with sexes separated. Growth of male and female poults, fed three different dietary protein contents, was compared from three to eight weeks. Male turkey poults required at least 28 per cent protein in their diets for maximum growth to eight weeks, whereas the growth of females was less responsive to increases in protein content above 27 per cent. Feed conversion ratio was not significantly affected by dietary protein.

2017 ◽  
Vol 25 (3) ◽  
pp. 157-164 ◽  
Author(s):  
Muhammet Altunok ◽  
Osman Özden

Abstract The purpose of the study was to obtain preliminary data on the effect of dietary protein on the growth of the thick-lipped grey mullet (Chelon labrosus) juveniles reared in net sea-cages. The juveniles (6.2 ± 0.61 g) were obtained from the wild and were stocked into net sea-cages at a stocking rate of 100 juveniles per cubic meter and fed with experimental diets including 25, 30, or 35% crude protein for 87 days. The highest mean weight and specific growth rate (SGR) were 39.5 g and 2.13% day−1, respectively, at protein levels of 30%. The diet also resulted in the most efficient feed conversion ratio of 1.61.


1990 ◽  
Vol 38 (3B) ◽  
pp. 577-595
Author(s):  
N.P. Lenis ◽  
J.T.M. van Diepen ◽  
P.W. Goedhart

In 3 experiments each of 4 treatments, crossbred pigs about 35 kg were given basal diets with a low concentration of 1 amino acid and DL methionine 0, 0.41 or 0.82 and 1.23, L-threonine 0, 0.5, 1.0 and 1.5 and DL-tryptophan 0, 0.31, 0.62 and 0.93 g/kg. Apparent faecal digestibility of organic matter, protein and amino acids of 1 or 2 diets from each feeding experiment was estimated with 4 pigs each. Average daily gain of the optimally supplemented groups was 875 g and feed conversion ratio 2.84. For maximum growth performance of pigs between 35 and 105 kg, the requirement for total methionine + cystine, threonine and tryptophan, relative to total lysine supply, was about 60, 66 and 19%, respectively. On a faecal digestible basis, requirements were about 58, 63 and 19%, relative to faecal digestible lysine, respectively. (Abstract retrieved from CAB Abstracts by CABI’s permission)


2019 ◽  
Vol 11 (4) ◽  
pp. 373-378
Author(s):  
Tobechukwu Chijioke IWUJI ◽  
Udo HERBERT ◽  
Mary Anthony OGUIKE

Treatment with Panax ginseng has been reported to elicit various biological effects in both animal and human models. Among the reported effects on animal are protein synthesis and growth promoting ability. For a better understanding, the current experiment was conducted to evaluate the effect of oral administration of P. ginseng extracts (PGEs) on growth performance parameters of growing New Zealand White (NZW) rabbits. A total of 48 NZW male and female rabbits, with the average age of two months were used for the experiment, conducted in a Randomized Complete Block Design (RCBD). The rabbits were organized into 3 groups of 16 rabbits each (8 males and 8 females), on weight equalization basis and randomly assigned to 3 treatments: T1, T2 and T3, containing PGEs at 0.0, 200.0 and 400.0 mg/ml, respectively. Final body weight and total body weight gain of the male rabbits on T2 and T3 were significantly (p < 0.05) higher than those of male rabbits on T1, while feed conversion ratio for the male rabbits recorded a higher (p < 0.05) value in T1 than in T2 and T3, which were similar (p < 0.05). Trunk length and breast girth of the male rabbits were significantly (p < 0.05) higher in T3 than in T1 and T2. Feed intake pattern was similar among the male rabbits, but different between males and females. Significant (p < 0.05) differences were not observed in all parameters measured among female rabbits, but all experimental rabbits followed the same pattern of body weight gain. Oral administration of Panax ginseng extracts at 200 and 400 mg/ml levels enhanced feed conversion ratio in male NZW rabbits, thereby increasing body weight gain, trunk length and breast girth, while feed intake patterns slightly differed between the male and female growing rabbits.


1970 ◽  
Vol 3 (1) ◽  
Author(s):  
Herry Susanto

The purpose of this study was to test and evaluate feed intake, average daily gain and feed conversion ratio of male and female broilers with a separate maintenance treatment (sexing) in semi-closed house cages. The study was conducted at Joni Farm, Tegineneng Subdistrict, Pesawaran District. The type of research used was experimental research comparing the performance of male and female broilers that were kept separately (sexing) at the age of 12 days to 30 days. Experimental broilers used during research were 94 male and 94 female Lohmann. The variables observed in this study were male and female broiler on feed intake, average daily gain (ADG) and Feed Convertion Ratio (FCR). Based on the results of statistical analysis showed sexing has a significant effect on ADG and FCR. Sexing had no effect on feed intake. The average feed intake of male broiler chicken feed was 128.12 grams, while the consumption of female broiler was 120.00 grams. Average daily gain (ADG) of male broiler was higher than female broiler , ADG male broiler were 75.61 grams, while ADG female broiler were 66.28 grams. FCR of female broilers was 1.77 wich higher than male broilers was 1.57. Keywords: Average Daily Gain, Feed Convertion, Feed Intake, Sexing Chicken Broiler


2021 ◽  
Vol 20 (1) ◽  
pp. 56-64
Author(s):  
A.C. AKPOJO ◽  
H. A BUHARI ◽  
I. O. ADEJUMO ◽  
A. T. ADESOLA

Pig is one of the most consumed meat across the globe. However, its production is limited by high cost of feed ingredients. Hence, the search for alternative cheap feed ingredients without any loss to animal’s performance is on the increase. The influence of different protein sources and feed types (wet or dry) was investigated on the growth performance, haematology and serum biochemistry of weaned pigs. Weight gain and feed conversion ratio were higher for soybean and full-fat soya-based diets. Feed and water intake were not significantly different amongst treatments. Nature of feed did not influence weight gain, feed intake and feed conversion ratio. Groundnut cake meal may compare with soybean meal in pig’s diet, but it may have to be supplemented with lysine, methionine or fish meal.    


1964 ◽  
Vol 4 (13) ◽  
pp. 112 ◽  
Author(s):  
MW McDonald ◽  
JF Dillon

A diet, based on wheatmeal and soybean meal, was fed to chickens and was shown to be deficient in sodium but not in chloride, using reduced growth rate from 14 to 20 days of age as the main criterion of deficiency. The same diet fed to chickens from hatching to five weeks of age produced almost complete cessation of growth during the last week, caused heavy mortality, greatly impaired feed conversion, and increased adrenal gland size in relation to body weight. Using this diet and additions of sodium, the minimum sodium requirement was estimated to be 0.18 per cent of the diet for maximum growth and minimum feed conversion ratio, and slightly lower than this for maximum viability and minimum adrenal gland activity.


2016 ◽  
Vol 56 (5) ◽  
pp. 815 ◽  
Author(s):  
John F. Carragher ◽  
Beverly S. Mühlhäusler ◽  
Mark S. Geier ◽  
James D. House ◽  
Robert J. Hughes ◽  
...  

We have previously demonstrated that feeding chickens a diet containing high levels of the n-3 PUFA α-linolenic acid (ALA) significantly increases the content of the principal omega-3 long-chain polyunsaturated fatty acids, eicosapentaenoic acid and docosahexaenoic acid, in their meat and eggs. However, the effect of the diet on production characteristics of the birds has not been assessed. This study aimed to determine the effect of feeding male and female Cobb 500 broilers (n = 3840) a high ALA diet (containing 2.5% flaxseed oil) compared with a standard commercial Control diet (containing 2.5% tallow) on growth, feed conversion ratio and mortality until 6 weeks of age. As expected the dietary flaxseed oil significantly increased breast meat levels of omega-3 polyunsaturated fatty acids (~4-fold), with most eicosapentaenoic acid and docosahexaenoic acid being deposited in the phospholipid fraction. Both male and female birds fed the high ALA diet were significantly heavier at 6 weeks of age (77 g heavier in females, 87 g heavier in males). They also had a significantly (10%) lower feed conversion ratio, and a mortality rate that was not different from the Control diet across the 6-week feeding period. These findings indicate that a high ALA diet has the potential to enrich chicken breast meat with eicosapentaenoic acid and docosahexaenoic acid without loss of growth rate or feed efficiency, or increase in fat content of breast meat.


2018 ◽  
Vol 1 (29) ◽  
pp. 72-81
Author(s):  
Hop Van Nguyen ◽  
Tinh Huu Nguyen ◽  
Hoa Van Tran ◽  
Kinh Van La

The objective of the study is to compare the practical results with the predicted results by Crossbreeding Effects (CBE) software on pig crossbred based on daily gain, backfat thickness and feed conversion ratio. Another purpose of this study is to predict those three traits among some expected hybridization. This research was conducted on pig farm at Binh Thang Research and Development center from 2013 to 2017. In this study, for each pair of purebred Duroc and Pietrain, Duroc and Landrace, Pietrain and Landrace, twelve hybridizations were analyzed, nine unhybridizations were predicted by CBE software. The results showed that there was no significant difference between the predicted and actual data. With some unhybridization crossbred , the predictions showed high reliability (P<0.05). Based on the predicted data of CBE software , some traits of the crossbred animals would not be improved, therefore, it was not necessary to conduct these hybridizations


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