scholarly journals Effect of a Large-sized Cage with a Low Metabolizable Energy and Low Crude Protein Diet on Growth Performance, Feed Cost, and Blood Parameters of Growing Layers

Author(s):  
Yi Wan ◽  
Ruiyu Ma ◽  
Yan Li ◽  
Wei Liu ◽  
Junying Li ◽  
...  
2020 ◽  
Vol 99 (6) ◽  
pp. 2916-2925
Author(s):  
Chai Yan Lee ◽  
Adelene Ai-Lian Song ◽  
Teck Chwen Loh ◽  
Raha Abdul Rahim

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1939
Author(s):  
Thamsanqa Doctor Empire Mpanza ◽  
Abubeker Hassen ◽  
Abiodun Mayowa Akanmu

Feed shortage is the main cause of poor production performance in livestock under smallholder farmer’s in South Africa. Therefore, this study evaluated the growth performance, nutritive value and in vitro ruminal fermentation of Stylosanthes scabra accessions in climatic condition of Pretoria, South Africa as potential forage sources in order to improve feed quality and subsequently livestock production. Stylosanthes scabra accessions were planted in 6 m2 plots following a complete randomized block design with three replicates per accession. The plants were allowed to grow to full maturity after which forage was harvested and yield, chemical composition, phenolic compounds, in vitro organic matter digestibility (IVOMD) and in vitro ruminal fermentation characteristic were determined. Forage yield of accessions ranged between 4.3 to 5.3 t ha−1 in dry matter (DM), and only twelve accessions were identified to be adaptable over the three-year evaluation under rain-fed. Accessions 140, 9281, 11,252, 11,595, 11,604 and 11,625 were consistent in terms of forage yield over the three years. Significant differences among accessions were observed for crude protein (CP), neutral detergent fiber (NDF), IVOMD, metabolizable energy, metabolizable energy yield, gas production, total phenols, total hydrolysable tannins and total condensed tannins. Principal component and clustering analysis showed that accessions 11,255 and 11,625 are distinct in their characteristics as compared to the rest of the accessions, and both accessions are suitable forage source for animals since they contain low NDF with good forage production and crude protein content. However, there is a need for further study to integrate these accessions into the feeding systems in order to improve livestock production.


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 115-115
Author(s):  
Marcos E Duarte ◽  
Sung Woo Kim

Abstract This study evaluated the effects of low CP diets on growth performance of finishing pigs. Seventy-two pigs (54 kg BW) were allotted to 3 treatments (8 pens/treatment) based on RCBD with sex and initial BW as blocks. Pigs were fed for 56 d until 120 kg BW based on 3 phases (P1/2/3 for 21/17/18 d, respectively). Treatments were CON (18.0, 13.8, 12.7% CP for P1/2/3; supplementing Lys, Met, Thr, and Trp); LCP (13.5, 11.4, 10.4% CP; supplementing Lys, Thr, Trp, Met, Val, and Ile); and LCPG (14.1, 12.8, 11.1% CP; LCP + Glu to match % Glu with CON). All diets met NRC requirements and had 2.6 Mcal/kg NE. Growth performance and backfat thickness were measured by phase. At d 56, blood and fecal samples were collected to analyze blood parameters and fecal microbiota. Data were analyzed using SAS 9.4. Overall, the growth performance and backfat thickness did not differ among treatments. BUN of LCPG was lower (P < 0.05) than CON (4.03 to 6.05 mg/dL), whereas the insulin of LCPG was greater (P < 0.05) than CON (222 to 116 pmol/dL). Relative abundance of Streptococcaceae in CON (6.1%) was greater (P < 0.05) than LCP (2.0%) and LCPG (2.3%), whereas the abundance of Erysipelotrichaceae of CON (1.8) was greater (P < 0.05) than LCP (0.9%). Colectively, when Lys, Thr, Trp, Met, Val, and Ile were provided sufficiently and NE was maintained, CP can be reduced by 2.6% without affecting growth performance and backfat thickness compared to conventional diets with Lys, Met, Trp, and Trp. Feeding low CP diets reduced harmful bacteria, and Glu supplementation further enhanced nitrogen utilization and glucose metabolism. Application of low CP formulation with supplementation of 6 essential amino acids to finishing pigs can be successful, when NE is matched and further beneficial with Glu supplementation.


2020 ◽  
Vol 47 (1) ◽  
pp. 290-299
Author(s):  
J. J. Millam ◽  
S. Iliya ◽  
D. M. Babale ◽  
H. Y. Abbaya ◽  
P. A. John ◽  
...  

The investigation was carried out to examine the outcome of soybean curd residue (SCR) supplementation in the diets of Red Sokoto bucks on growth performance and some blood parameters. Five (5) mixed ration was formulated to contain 14% crude protein, four (4) of which was SCR based at inclusion levels of 0% (control), 5%, 7.5%, 10% and 12.5% denoted as T1 , T2 , T3 , T4 and T5 respectively. Twenty (20) Red Sokoto bucks were used for the experiment for a period of twelve (12) weeks. They were randomly assigned to the five dietary groups of 4 bucks each in a completely randomize design. Laboratory analyses were carried out on the SCR and the experimental diets. Parameters measured were on growth performance and some blood parameters. The results obtained showed that SCR was high in DM (93.53%), energy (3435.15 kcal/kg), protein (30.66%) and NFE (49.12%) values. The results revealed significant differences (P<0.05) among all treatments. The highest values for daily weight gain was observed in T5 (122.86 g/day); daily feed intake and feed conversion ratio was observed in T3 (481.29 g/day and 4.66 respectively). High significant (P<0.05) values for packed cell volume and haemoglobin were observed in T5 (26% and 8.6 g/dl) compared to the control. Meanwhile, white blood cell was highest significantly (P<0.05) in T3 (8.50 ×109 /L). Most of the blood parameters observed in this study were within standard normal range for goat. This study showed that SCR did not pose any health risk to the bucks. It was concluded that supplementing soybean curd residue in the diets of goats up to 12.5% can produce a better performance.


Author(s):  
H. N. Rajeswara ◽  
Jaya Naikand ◽  
C. S. Nagaraja

A study was conducted for 56 days to observe the effect of varied levels of dietary crude protein and metabolizable energy on growth performance in 720 day-old Giriraja chicks, which were divided equally into nine groups of 80 birds each. Nine different experimental diets were formulated with three levels 2700, 2800, and 2900 kcal of metabolizable energy (ME/kg), each with three levels of protein (CP), viz., 19%, 20%, and 21%, respectively and Group T5 served as control fed with 20% protein and 2800 kcal energy as per BIS (2007) requirements. Feed consumption, body weight gain, and feed conversion ratio (FCR) were analysed up to 56 days. The results of the study indicated that diet containing 20% CP with 2900 kcal ME/kg showed enhanced growth performance in Giriraja chicks.


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