Effect of nucleotides on growth performance, gut health, and some immunological parameters in broiler chicken exposed to high stocking density

The present study was conducted to investigate the effects of probiotic on growth performance, gut health, viability, carcass yield traits and cost benefit analyses etc., of broiler chicken from d1-28 days. A total of 192 day-old broiler chicks (Ross 308) was assigned into four dietary treatment groups, i.e. D1 (Control), D2 (Poultry Starsol), D3 (Avilac plus) and D4 (Avibac), and each treatment replicated six times with eight birds per replicate in a completely randomized design. The chicks were raised in battery cages all the trial period. Ready-made starter diet (crumble) was fed the chicks up to 14 days, after that, grower (pellet) diet fed the broiler from d15 to 28 days. The water treated with probiotics at the rate of 1.0 g L-1 (Poultry Starsol), 1.0 ml L-1 (Avilac plus) and 1.0 g L-1 (Avibac) in D2, D3 and D4 treatment groups, respectively, and supplied the birds ad libitum entire the trial period. Data on feed intake (FI), body weight gain (BWG), feed conversion ratio (FCR) and livability (%) were collected. Apart from this, caecal digesta sample was taken on 28 days to determine the gut microflora population, i.e. total viable count (TVC) and total lactobacilli count (TLC) of broilers. Carcass characteristics (dressing %, blood weight, drumstick weight, thigh weight, breast weight %) and cost benefit were also calculated on the last day of trial period to assess the different meat cuts and the profitability of broiler. The data revealed that FI, viability (%), TVC and TLC of broilers had no difference (P>0.05) between treatment on 28d. Except for first week, BWG was improved significantly (P<0.05) in the birds fed probiotics during d1-21 and d1-28, respectively. Superior FCR values (1.30, 1.34) were observed in the broilers of probiotics supplemented groups from d1-28 days of age. The results of carcass traits were influenced significantly (P<0.05) by dietary treatment. The percentage of breast weight, thigh weight, dressing yield, drumstick weight and blood weight was increased (P<0.05) in the supplemental group compared to control. Higher (P<0.01) net profit was observed in the birds of probiotics supplemented group than that of control group. It can be concluded that broiler responded positively as a result of probiotics supplementation in water, and can be raised profitably under farming condition with low cost. Int. J. Agril. Res. Innov. Tech. 10(1): 28-34, June 2020

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Effects of Phenylpyruvate on the Growth Performance and Intestinal Microbiota in Broiler Chicken

10.20944/preprints202107.0183.v1 ◽

2021 ◽

Author(s):

Mir Zulqarnain Talpur ◽

Peng Wentong ◽

Yuxian Zeng ◽

Peipei Xie ◽

Jincheng Li ◽

...

Keyword(s):

Growth Performance ◽

Broiler Chickens ◽

Broiler Chicken ◽

Aromatic Amino Acids ◽

Basal Diet ◽

High Dose ◽

Gut Health ◽

Beneficial Effects ◽

Slaughter Performance ◽

Cell Surface Structure

The purpose of this study was to see how dietary supplementation with phenylpyruvate affected broiler chicken growth, slaughter performance, gut health microbiota, and immunity. A total of 288 day old broiler chickens were randomly assigned to one of four groups (6 replicates each with 12 chicken). NC (basal diet), PC (basal diet plus antibiotic virginiamycin 15ppm), LCP and HCP (basal diet plus phenylpyruvate 1kg/t and 2kg/t, respectively). Results showed that PC had higher ADFI during the first 21 days, and better FCR than the NC, the LCP and HCP also improved broilers’ FCR 0.001 and 0.037% in relation to NC respectively. HCP has a higher all-eviscerated ratio than NC and less abdominal fat than LCP. HCP has increased villus length and crypt depth in the ileum compared to the NC. Bursa was lower in HCP and thymus was lower in LCP and PC. In contrast HCP have lower pro-inflammatory cytokine IL-1, as well as lower TLR4. The phenylpyruvate improved family Selenomonadaceae, genus Megamonas Bacteroides species that are known for beneficial effects like for maintenance of the cell surface structure, regulating aromatic amino acids and C. jejuni-suppressive treatment respectively. Finally, phenylpyruvate feed supplement can be utilized to improve growth performance and positively modulate gut microbiota, however this is less efficient than antibiotics in improving growth performance, although more efficient in improving productive performance and gut morphology. Moreover, high dose of phenylpyruvate is more effective than low dose

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EFFECT OF STOCKING DENSITY ON SOME PRODUCTION AND CARCASS OF BROILER CHICKEN

Basrah Journal of Agricultural Sciences ◽

10.33762/bagrs.2008.57399 ◽

2008 ◽

Vol 21 (2) ◽

pp. 1-10

Keyword(s):

Broiler Chicken ◽

Stocking Density

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High stocking density alters growth performance, blood biochemical profiles, and hepatic antioxidative capacity in gibel carp (Carassius gibelio)

Fish Physiology and Biochemistry ◽

10.1007/s10695-020-00905-6 ◽

2021 ◽

Author(s):

Kommaly Onxayvieng ◽

Marina Piria ◽

Mirna Mrkonjić Fuka ◽

Ana Gavrilović ◽

Xiao Liang ◽

...

Keyword(s):

Growth Performance ◽

Stocking Density ◽

Gibel Carp ◽

Antioxidative Capacity ◽

Blood Biochemical ◽

Carassius Gibelio ◽

Biochemical Profiles

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PSIII-16 Growth Performance of Weaned Pigs Fed Barley Differing in Fermentable Starch and Fiber Profile

Journal of Animal Science ◽

10.1093/jas/skab054.296 ◽

2021 ◽

Vol 99 (Supplement_1) ◽

pp. 175-176

Author(s):

Joaquin J Sanchez Zannatta ◽

L F Wang ◽

Eduardo Beltranena ◽

Aaron D Beattie ◽

Rex N Newkirk ◽

...

Keyword(s):

Energy Source ◽

Growth Performance ◽

Steam Explosion ◽

Phase 1 ◽

Average Daily Gain ◽

Barley Grain ◽

Gut Health ◽

Weaned Pigs ◽

Cereal Grain ◽

Hulled Barley

Abstract Barley grain containing more fermentable starch or fiber might be an attractive energy source in weaned pig diets due to benefits on gut health. Barley rapidly-fermentable carbohydrates may serve as prebiotic and slowly-fermentable fiber may decrease diarrhea in weaned pigs. Steam-explosion processing may disrupt the fiber matrix of hulls, increasing slowly-fermentable fiber of barley. To explore, 220 pigs were fed 1 of 5 diets containing 60% cereal grain: 1) low-fermentable hulled barley (LFB); 2) LFB steam-exploded (LFB-E; 1.2 MPa, 120 s); 3) high β-glucan (10% DM) hull-less barley (HFB); 4) high amylose (17% DM) hull-less barley (HFA); or 5) low-fermentable wheat (LFW). Diets were fed starting 1-week post-weaning and formulated to provide 2.4 and 2.3 Mcal net energy (NE)/kg, 5.5 and 5.1 g standardized ileal digestible lysine/Mcal NE for phase 1 (day 1–14) and phase 2 (day 15–35), respectively. For the entire trial (day 1–35), average daily feed intake (ADFI) and average daily gain (ADG) of pigs did not differ among diets. Gain:feed (G:F) did not differ between LFB and LFW diets, but steam-explosion of hulled barley reduced (P < 0.05) G:F. Feces consistency did not differ between LFB and LFW diets, but was better (P < 0.05) for LFB than HFB, HFA and LFB-E diets. For phase 1, G:F of pigs was lower (P < 0.05) for LFB-E diet than LFW diet. For days 22–28, LFB-E diet had greater (P < 0.01) ADFI than HFA diet and tended (P = 0.09) to have a greater ADG than HFB diet. In conclusion, hulled or hull-less barley grain replaced wheat grain without affecting growth performance in weaned pigs. Hulled barley increased feces consistency. Steam-explosion of hulled barley did not increase growth performance of weaned pigs. Barley grain is an attractive energy source for weaned pigs for managing growth and feces consistency.

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