Endoparasite and nutritional status of Suffolk lambs in seven production systems

2018 ◽  
Vol 58 (9) ◽  
pp. 1667 ◽  
Author(s):  
Jordana Andrioli Salgado ◽  
Marcelo Beltrão Molento ◽  
Cristina Santos Sotomaior ◽  
Laila Talarico Dias ◽  
Luciana Laitano Dias de Castro ◽  
...  

Lambs are the most susceptible category for parasite infections; therefore, the choice of the production system can influence nutritional status and reduce parasite infections. The present study aimed to evaluate the endoparasites and nutritional status of meat lambs in seven production systems. In the feedlot, they were (S1) early weaned lambs in feedlot and (S2) unweaned lambs in feedlot with controlled suckling. On pasture, they were (S3) early weaned lambs on pasture without supplementation, (S4) early weaned lambs on pasture with concentrate supplementation post-weaning, (S5) unweaned and unsupplemented lambs on pasture, (S6) unweaned lambs on pasture with concentrate supplementation and creep-feeding and (S7) unweaned lambs on pasture with free access to creep-grazing on white clover (Trifolium repens). Suffolk lambs (n = 132) were evaluated from 45 to 101 days of age, at 14-day intervals (0, 14, 28, 42 and 56 days). Parasite faecal egg count (FEC), FAMACHA score (FMC), average daily weight-gain and body condition score (BCS) were evaluated. The animals were treated with anthelmintics when they had FMC 3, 4 or 5 and/or FEC above 700. BCS and FEC (r = –0.361) and BCS and FMC variables (r = –0.313) were negatively correlated (P ≤ 0.01). FEC was lower in feedlot and in creep-feeding animals than in the other systems after the second evaluation (28 days). The weaned feedlot-lamb and controlled-suckling systems presented the best performance. On pasture, the animals in creep-feeding and creep-grazing had the best performance. Weaned and unsupplemented lambs on pasture had the lowest daily weight-gain (63 g/day) and the highest FMC scores (43% of animals) and the lowest BCS (mean 1.5). The endoparasite and nutritional statuses of the lambs were strongly correlated and were influenced by the production system, mainly when the ewes were present and the lambs received supplementation on pasture.

2017 ◽  
Vol 38 (2) ◽  
pp. 867
Author(s):  
Reinaldo Henrique Borger ◽  
Adriana Sousa Martins ◽  
Shivelly Los Galetto ◽  
Victor Breno Pedrosa ◽  
Raquel Abdallah da Rocha Oliveira ◽  
...  

Increasing concern about some animal production systems has placed considerable value on humanitarian breeding systems, aimed at ensuring animal welfare and comfort. Raising calves is one of the most important stages in a milk production system. This study aimed to evaluate and compare the performance of Holstein dairy calves raised by two farming systems: conventional individual (CI) and collective with automatic calf feeder (CACF). Fourteen, 15-day-old Holstein dairy calves having an average initial body weight of 40 kg, were used. The animals were distributed in a completely randomized design with seven animals per treatment. The variables evaluated were the milk and feed intake, body weight, hip height, thoracic circumference and daily weight gain. The average milk intake was lower in the CACF (3.5 L animal-1 day-1) than CI (5.1 L animal-1 day-1) system. However, the feed intake was higher in the CACF (1.205 kg animal-1 day-1) compared to CI (0.910 kg animal-1 day-1) system. Body weight, thoracic circumference, hip height and daily weight gain were similar between the two systems. The CACF raised calves had a higher concentrate intake and lower milk intake than the calves raised under the CI system.


Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 173
Author(s):  
Serena Calabrò ◽  
Alessandro Vastolo ◽  
Nadia Musco ◽  
Pietro Lombardi ◽  
Alessandro Troisi ◽  
...  

The study aimed to compare two diets, Control (CTR) and Experimental (EX) (mainly differing as regards their ingredients, energy, and protein contents) administered to medium and large-sized bitches from two months before the expected proestrus and up to 30 days after delivery on mothers’ weight, body condition score, litter size, milk quality, and puppies’ growth. No differences were found for body weight during pregnancy, even if the BCS after delivery was significantly (p < 0.01) higher in the EX group than in the CTR one. Concerning the size effect, the percentage of weight gain on the initial body weight was double in medium-sized dogs compared to large dogs (p < 0.01). The number of puppies per litter was significantly higher (p < 0.05) for the EX group compared to the CTR one. Concerning puppies’ weight, the CTR group showed a significantly (p < 0.01) higher body weight from the 21st day of life due to the significant (p < 0.01) higher daily weight gain during the suckling period. Considering the performance of bitches and puppies, both diets seem useful for these stages of their lives. In fact, after 30 days of lactation, all tested bitches showed a healthy status and both the percentage of newborns mortality and puppies’ growth kinetics fell into the normal physiological range for the species.


2019 ◽  
Vol 17 (2) ◽  
pp. 32-37
Author(s):  
Asep Sudarman ◽  
N Hidayati ◽  
S Suharti

This study aimed to evaluate the effect of Indigofera sp and cassava flake supplementation on the nutritional status of female buffaloes fed on rice straw and field grasses in smallholder farmers in Cibungbulang, Bogor. This study used four female buffaloes of 4-10 years old and an average body weight of 428.88 ± 86.05 kg. The treatments were T0 = without supplementation and T1 = supplementation of 50% Indigofera leaf and 50% cassava flake. The variables observed were body weight gain, blood glucose, cholesterol, total protein, albumin, hematocrit and hemoglobin. Data were analyzed using Paired Samples T-test. The results showed that the nutritional status of buffaloes that were reared in semi-intensive were in normal condition. Supplementation of Indigofera sp and cassava has a positive influence on body weight gain, blood metabolite levels, hematocrit and hemoglobin of female buffaloes. Daily weight gain was obtained at 732.1 g head-1day-1.   Blood glucose increased from 53.97 to 60.86 mg dL-1, albumin from 3.44 to 3.78 g dL-1, blood cholesterol from 37.43 to 50.84 mg dL-1 and hematocrit from 26.75 to 29.75%.  The conclusion is that giving supplements of Indigofera and cassava for two weeks can improve the nutritional status of buffaloes reared traditionally.


Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1922
Author(s):  
Naomi H. Rutherford ◽  
Alan W. Gordon ◽  
Gareth Arnott ◽  
Francis O. Lively

The aim of this study was to evaluate the effect of production system on the health, performance, carcass characteristics, and meat quality of autumn born (AB) and spring born (SB) Holstein bulls. The study involved a total of 224 Holstein bulls and was conducted over two years (2017/18, 2018/19). The four production system treatments differed during the grower period and consisted of: (i) grazed with no concentrate supplementation (G), (ii) grazed with 2 kg concentrate supplementation per day (G2), (iii) grazed with ad libitum access to concentrates (GA) and (iv) housed with ad libitum access to concentrates and grass silage (HA). All bulls were finished on ad libitum concentrates and grass silage and were slaughtered at a mean age of 15.5 months. Total grower dry matter intake (DMI) (p < 0.001) and total finishing DMI (p < 0.001) differed between production systems for both AB and SB bulls, with that of GA bulls being the greatest in both cases. Average daily gain (ADG) during the grower period was greatest (p < 0.001) for the HA production system in the AB bulls and the GA and HA production systems for the SB bulls. However, during the finishing period, G bulls had the greatest (p < 0.001) ADG of the AB bulls, while that of the SB bulls was from the G2 production system (p < 0.001). For both AB and SB, bulls on the GA and HA production systems produced heavier cold carcass weights than the G and G2 bulls (p < 0.001). There was no significant difference (p > 0.05) in health, carcass conformation, fat classification, or meat quality between production systems.


2020 ◽  
Vol 29 (5) ◽  
Author(s):  
Elin Stenberg ◽  
Anders Karlsson ◽  
Camilla Öghren ◽  
Katarina Arvidsson Segerkvist

This study evaluated the effects of different lamb production systems on live weight gain (LWG), carcass quality and meat quality. Four production systems for weaned intact male lambs were examined: indoor feeding with grass silage and concentrate (group 1), grazing on cultivated pasture with (group 2) or without (group 3) concentrate, and grazing on semi-natural pasture (group 4). Live weight, carcass weight, dressing percentage, carcass conformation, fatness and pH decline were recorded at slaughter, and M. longissimus thoracis et lumborum was analysed for colour, thawing and cooking loss, pH after 24 hours and 6 days, and Warner-Bratzler shear force. LWG was strongly affected by production system, being highest for group 1 and lowest for group 4 (p<0.001). Group 4 had the lowest conformation (p=0.002) and fat scores (p<0.001). Hence, production system affected age at slaughter, live weight gain, weight at slaughter, carcass conformation and fatness scores, but caused no differences in meat quality attributes in intact male lambs.


2020 ◽  
Vol 40 (2) ◽  
pp. 151-159
Author(s):  
S. A. Ogedegbe ◽  
A. Ahmed ◽  
J. A. Imasuen

The objective of the study was to ascertain the feed intake, acceptability of hay and weight gain by yankasa rams fed basal diets of either natural grass hay (NGH) as control, Digitaria exilis hay (DEH), Bracharia decumbens hay (BDH) or Digitaria decumbens hay (DDH) along with equal amounts of concentrate feed as supplement. The 10-week experiment was conducted at the College farm of the National Veterinary Research Institute (NVRI), Vom, Plateau State, Nigeria using Completely Randomized Design. The four hays were allotted randomly to twenty rams housed in separate pens. There were five rams per treatment. Each animal was served 2 kg of the hay treatment, plus 200 g concentrate supplement. The parameters measured were feed intake (FI), water consumed (WC), hay acceptability (HA), weekly weight (WW), total weight gained (TWG) and daily weight gain (DWG) by rams. Hay treatment affected weekly weight of yankasa rams significantly. Daily weight gain was 142.9, 60.7, 42.9 and 10.7 g per day for rams fed with BDH, DDH, DEH and NRH, respectively. At week 10, rams fed with BDH were significantly heavier by 78.0 % than rams fed NGH and heavier by 33.2 % on aggregate than rams fed with DEH and DDH. Total weight gain of rams fed BDH was 809.1 % higher than TWG of animals fed with the control (NGH) treatment. Yankasa rams consumed 2.5 litres of water per head daily. The rams consumed significantly more of the natural grass hay (NGH) than the other hays. Acceptability of NGH, DEH and BDH was similar but DDH was not well accepted by rams. The great prospects of Bracharia decumbens hay for fattening yankasa rams, warrants expansion of this grass by NVRI.


Author(s):  
Nikolina Mesarec ◽  
Urška Pačnik ◽  
Alja Mesarič ◽  
Janko Skok ◽  
Dejan Škorjanc ◽  
...  

The post-weaning aggression among piglets is a serious problem in modern pig production which compromises animal welfare and health, as well as could cause considerable economic losses. To prevent post-weaning aggression between piglets an approach of early socialisation of piglets during lactation was tested in the present study. In the group farrowing pen (GFP) three individual farrowing pens were interconnected whereby piglets had free access to move across pens and/or cross-suckled alien sows that were still individually crated – passage between pens was released within 24h postpartum. Piglets/litters in the control group went through the conventional breeding practice (i.e. individual farrowing pen/crate). Altogether, the experiment involved 235 piglets. The preliminary results revealed that the suckling order stability differed between studied breeding technologies (group and individual). About one third of all piglets (31.3%) were found being involved (at least once) in the cross-suckling, i.e. suckling by the alien mother. Consequently, suckling stability was found generally lower in the GFP, with a significant drop after two weeks of lactation. Regarding the growth performance, piglets from GFP grew relatively, i.e. considering initial body weight, faster both during lactation and after weaning, although their daily weight gain was not significantly higher. The present preliminary study revealed early socialisation of piglets as an effective method to mitigate post-weaning aggression, as well as to improve their growth performance. However, considering mortality in lactation and disturbances in suckling stability, additional studies are needed to optimize the process of early socialisation, particularly in terms of piglets’ age when grouping of non-littermates is implemented during lactation.


2020 ◽  
Vol 98 (10) ◽  
Author(s):  
Leandro S Sakamoto ◽  
Alexandre Berndt ◽  
André de F Pedroso ◽  
Amanda P Lemes ◽  
Mariana V Azenha ◽  
...  

Abstract Increasing greenhouse gas (GHG) emissions from anthropogenic activities have contributed to global warming and consequently to climate change. Among all sources of emissions, the agricultural sector accounts for just under a quarter, mainly because of the intensification of food production systems necessary to supply the growing demand of the population. As ruminal fermentation is the largest source of methane emission in the livestock industry, emission by cattle has become the focus of studies. The aim of this study was to evaluate enteric methane emission and emission intensities of Nellore cattle at different ages submitted to levels of intensification of the grazing system. Twenty-four animals per cycle (age of 21.8 and 13.1 mo in cycles 1 and 2, respectively) were randomly distributed across different grazing systems: irrigated pasture with a high stocking rate (IHS), dryland pasture with a high stocking rate (DHS), recovering dryland pasture with a moderate stocking rate (DMS), and degraded pasture with a low stocking rate (DP). Methane emission was measured using the sulfur hexafluoride technique in each season of the cycle. Intensive systems provided higher yields of good-quality forage as well as superior animal performance when compared with DP. Methane yields were different between seasons and cycles. Methane emissions per average daily weight gain and dry matter digestible intake were different between treatments. Differences in the results were observed when they were analyzed per hectare, with the highest gain yield (P = 0.0134), stocking rate, weight gain, carcass production, and total methane emission (P &lt; 0.0001) being found for the intensive systems. There were no differences in emissions per weight gain or carcass production between production systems, while a difference was observed between cycles (P = 0.0189 and P = 0.0255, respectively), resulting in lower emission intensities for younger animals. We conclude that more intensive systems resulted in a higher kilograms production of carcass per hectare; however, animals at 19 mo of age raised in the IHS and DMS systems had a lower emission intensity in kilogram of CO2-eq. per kilogram of carcass. Moderate intensification (DMS) using animals at about 19 mo of age might be an effective strategy to mitigate GHG emissions from Brazilian tropical pastures. Further studies are needed to understand the relationship between increasing productivity and decreasing environmental impacts, especially methane emission from ruminants.


2019 ◽  
Vol 40 (3) ◽  
pp. 1215 ◽  
Author(s):  
Daniel Gonçalves da Silva ◽  
Vicente de Paulo Macedo ◽  
Magali Floriano da Silveira ◽  
Ana Carolina Fluck ◽  
Olmar Antonio Denardin Costa ◽  
...  

Abstract: The aim was to assess the effect of the production system on the yield of non-carcass components of Dorper x Santa Inês crossbred lambs. The study was carried out at the teaching and research unit of sheep and goats of the Universidade Tecnológica Federal do Paraná, Campus Dois Vizinhos - PR using 24 uncastrated Dorper x Santa Inês crossbreed lambs (8 animals per treatment). The experimental design was completely randomized using three treatments with eight replicates. The treatments were: Panicum maximum cv. Aruana pasture, no shade, and no concentrate supplementation (PAss); Panicum maximum cv. Aruana pasture in the shade of Louro-Pardo Nativo trees (Cordia trichotoma) and with concentrate supplementation (PAcs); feedlot pens (COp). Carcass weight did not differ between treatments (p > 0.05). However, sheep in feedlot pens showed higher average daily weight gain. The non-carcass components differed significantly (p < 0.05), apart from the empty gastrointestinal tract, respiratory tract, and reproductive organs. Blood and external body components (head, skin, and limbs) showed higher weight in COp animals. The full gastrointestinal tract showed a significant difference between the treatments with the highest weight in sheep in the two pasture systems. Blood yield and weight of liver, kidneys, spleen, and heart were higher in COp animals. The production systems thus affected the total mass of non-carcass components in Dorper x Santa Inês crossbred lambs.


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